Rajen Tailor - Academia.edu (original) (raw)

Papers by Rajen Tailor

Research paper thumbnail of Outcomes of surgical iridectomy for the management of acute angle closure in patients with uveitis

Investigative Ophthalmology & Visual Science, Sep 26, 2016

Research paper thumbnail of A Case of Refractory Neovascular Glaucoma Treated With a XEN 45 Implant

Journal of Glaucoma, Oct 1, 2018

Research paper thumbnail of Evaluation of patients’ experiences at different stages of the intravitreal injection procedure – what can be improved?

Clinical Ophthalmology, Oct 1, 2011

Intravitreal injection of ranibizumab has become one of the most commonly performed ophthalmic pr... more Intravitreal injection of ranibizumab has become one of the most commonly performed ophthalmic procedures. It is timely to conduct an evaluation of the injection procedure from the patient's perspective so as to determine ways to improve patient experience. The purpose of this study was to quantitatively describe patients' experiences of the different stages of the intravitreal injection procedure and provide suggestions for improvement. Method: Following intravitreal injection, patients were administered a questionnaire to score the distress felt for each of ten parts of the whole injection process from the initial waiting to the final instillation of topical antibiotic at the end. A score of higher than 4 was regarded as significantly unpleasant. The proportion of scores above 4 for each step was used to evaluate the relative distress experienced by patients for the different parts of the procedure. Results: A total of 42 patients were surveyed. The step with the highest percentage of patients scoring more than 4 was the injection step (19%). However, cumulatively, the steps relating to the application of the drape, the speculum, and the removal of drape accounted for 53% of scores greater than 4. Conclusion: There is considerable variation in how patients tolerate different stages of the injection procedure. The needle entry was the most unpleasant step followed by the draping steps cumulatively. Use of subconjunctival anesthesia, a perforated drape, and alternative lid exclusion devices may help to improve the patient's tolerability of the procedure and experience.

Research paper thumbnail of Ocular Manifestations of Scleroderma

Survey of Ophthalmology, Mar 1, 2009

Systemic sclerosis is a chronic multi-system disorder predominantly affecting the skin, musculosk... more Systemic sclerosis is a chronic multi-system disorder predominantly affecting the skin, musculoskeletal, gastrointestinal, pulmonary, and renal systems. Although the exact etiology is unknown, recent evidence suggests that immune activation play a pivotal role in the pathogenesis. Ocular involvement in systemic sclerosis has been documented; however, due to the rare nature of the disease, most papers have been single case reports or small case series. This review paper aims to consolidate the findings of previous papers with a view to providing a comprehensive review of the ocular manifestations of systemic sclerosis.

Research paper thumbnail of The use of fibrin glue during aqueous shunt surgery

Eye, May 12, 2020

Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a do... more Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a donor patch graft and in conjunctival closure during aqueous shunt implantation. Study design Retrospective interventional case series of 150 patients from a single institution including historical controls from before the introduction of the change in technique. The surgery was performed by multiple glaucoma surgeons. Results One hundred and fifty eyes of 150 patients were identified. The mean age was 54.3 ± 21.1 years. Previous surgery included: cataract extraction (34.7%), trabeculectomy (36%) and retinal surgery (15.3%). All operations were carried out by either a consultant (57%) or fellow (43%). A Baerveldt Glaucoma Implant (Advanced Medical Optics, Santa Ana, California, USA) was used in 149 eyes. Conventional surgery (CS) was performed for 91 eyes and fibrin glue (FG) was used for 59 eyes. Compared with conventional surgery (CS) in which the donor patch graft and conjunctiva were sutured, use of fibrin glue (FG) reduced the overall mean operating time by 11.2 min ± 6.4 min (P = 0.031), though much less for consultants (8.5 min ± 6.2 min) (P = 0.16) than fellows (32.9 min ± 7.2 min) (P < 0.0001). There were four cases of conjunctival dehiscence-three in the FG group and one in the CS group (P = 0.30). Only one patient required re-suturing in the FG group. Conclusions The use of fibrin glue is safe and effective during aqueous shunt implantation. We have shown that the mean operating time can be reduced significantly with the use of fibrin glue which has significant implications for resource utilisation.

Research paper thumbnail of A Case of Fungal Keratitis Secondary to Cylindrocarpon Destructans

Open Journal of Ophthalmology, 2012

Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans ... more Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans and to highlight the issues with the use of topical steroids, the duration of antifungal treatment and the potential role of topical ciclosporin. Methods: A patient presented following being injured in the left eye by a fuchsia plant. Data was collected by slit lamp examination and review of the case notes and microbiology reports. Results: No organisms were cultured from a corneal scrape however cultures from a corneal biopsy identified cylindrocarpon species morphologically resembling Cylindrocarpon destructans. The patient responded well to topical amphotericin and clotrimazole and oral voriconazole but, developed a corneal perforation, which required an urgent tectonic penetrating keratoplasty (PKP). Despite being on topical dexamethasone and natamycin, the patient presented two months post-operatively with a corneal epithelial defect and a large hypopyon. Subsequently, the patient developed a deep corneal infiltrate and corneal vascularisation with a persistent epithelial defect. Conclusion: This is the first reported case of keratitis caused by Cylindrocarpon destructans. The case highlights: the contentious issues in the use of topical steroids following PKP and the duration of antifungal treatment both in primary infection and following PKP. Furthermore, the case accentuates a potential role for ciclosporin as an alternative to steroids following PKP.

Research paper thumbnail of The Long-term Outcomes of Glaucoma Drainage Device in Pediatric Glaucoma

Journal of Glaucoma, Mar 1, 2016

To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric pati... more To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric patients. Retrospective, noncomparative study including all patients below 18 years old who underwent Baerveldt or Molteno GDD implantation by a single surgeon. Mitomycin-C was used in most cases. Success was defined as postoperative intraocular pressure (IOP) between 6 and 22 mm Hg and a 20% reduction in IOP. Sixty-nine eyes of 52 patients were analyzed. Mean follow-up length was 45.7±25.2 months (range, 6 to 101 mo). At last postoperative visit, mean IOP and median number of antiglaucoma medications had been significantly reduced from baseline. Cumulative probability of qualified success was 95.6% at 1 year and declined to 71.3% at 5 years and 39.7% at 8 years. Multivariate analysis showed that non-white patients and previous history of cyclophotocoagulation had higher risks of failure at 5 years. Hypotony was the most common complication (39.1%) in the first 6 months postoperatively. Bleb encapsulation occurred in 16.4% of patients. Endophthalmitis occurred in 5.8% of cases and necessitated removal of the GDD. GDD surgery can work adequately in children in the long term. A relatively high complications rate should be expected, but in most cases these can be managed successfully. Early recognition of complications is necessary to ensure a good outcome.

Research paper thumbnail of Long-Term Outcome of Intravitreal Bevacizumab Followed by Ahmed Valve Implantation in the Management of Neovascular Glaucoma

Seminars in Ophthalmology, Oct 9, 2017

To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the man... more To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the management of neovascular glaucoma in a patient group with extended follow-up. The records of 16 patients (18 eyes) with neovascular glaucoma refractory to medical therapy who presented to a single surgeon between 2006-2008 were reviewed. Patients received pan-retinal photocoagulation and then intravitreal Bevacizumab followed by Ahmed valve implantation. The main outcome measures were: control of IOP (with or without additional medication), visual acuity (VA) and failure (IOP &amp;amp;amp;amp;gt;21 mmHg or &amp;amp;amp;amp;lt;6 mmHg, reoperation for glaucoma, or loss of light perception). Pre-operatively, all patients received pan-retinal photocoagulation followed by IVB at a mean of 15.9 (range 4-60) days prior to AGV. The mean pre-operative IOP was 37.1 mmHg (±13.4) on 3.2 (±0.87) medications. Of the 18 eyes, 14 eyes (78%) were treated with AGV alone and 4 eyes (22%) with AGV combined with cataract extraction. Sixteen eyes (89%) received mitomycin C treatment intraoperatively. Post-operatively, the mean follow-up period was 63 months (24-84). At final follow-up, the success rate was 50% (33.3% complete, 16.7% qualified) with a mean IOP of 18.1 mmHg (±9.5) on a mean number of 1.5 (±1.6) medications. The failure rate was 50%, with five eyes (27.8%) not meeting the IOP criteria for success (of these, three eyes required additional surgery to lower the IOP) and five eyes (22.2%) lost light perception. Intravitreal Bevacizumab followed by AGV offers long-term control of IOP without additional surgical intervention in the majority of cases.

Research paper thumbnail of Challenges in the management of ocular snake-bite injuries

International Ophthalmology, Jan 10, 2010

Research paper thumbnail of A Scleroderma Patient Complaining of Dry and Gritty Sensation of the Eyes

Springer eBooks, 2011

Systemic sclerosis (SSc) patients can exhibit a multitude of ocular manifestations; however, the ... more Systemic sclerosis (SSc) patients can exhibit a multitude of ocular manifestations; however, the commonest is keratoconjunctivitis sicca (dry eyes). When dry eyes are associated with a dry mouth and the presence of certain autoantibodies, a diagnosis of secondary Sjogren’s syndrome must be considered. Other ocular manifestations include eyelid skin and vessel changes, glaucoma, and hypoperfusion of the choroid associated with retinal pigment changes. The aim of management of dry eyes is to provide symptomatic relief, reduce ocular surface inflammation, and prevent complications. This can be achieved by treatment of the tear deficiency and by suppressing inflammation. The physician should consider referring symptomatic SSc patients to an ophthalmologist.

Research paper thumbnail of Contact lens-related microbial keratitis in deployed British military personnel

British Journal of Ophthalmology, 2010

To quantify the effect of contact lens-related microbial keratitis (CLMK) in the British Defence ... more To quantify the effect of contact lens-related microbial keratitis (CLMK) in the British Defence personnel particularly those in active service in the Arabian Gulf and Afghanistan between June 2001 and January 2007. A retrospective review of all British military personnel who developed contact lens-related keratitis during deployment. A total of 27 cases (27, eyes, 23, male; median age 26 (range 19-41) years) were identified, of whom 19 cases were evacuated from Iraq alone. Twenty cases were associated with soft contact lens wear. Seven cases were culture positive, of which five grew Pseudomonas aeruginosa. The overall incidence of CLMK in contact lens wearer in the British military in Iraq was 35 per 10,000. There was an increased incidence during the summer months. Seventeen eyes (63%) lost more than one line of visual acuity with a resultant permanent medical downgrading in duty capability in nine cases. CLMK has a poorer outcome in a deployed military environment when compared to the civilian setting. Increased awareness of the health risks of contact lens wear together with standardised treatment regimens based on improved pathogen detection using molecular diagnostics have improved outcomes.

Research paper thumbnail of The use of fibrin glue during aqueous shunt surgery

Eye, 2020

Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a do... more Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a donor patch graft and in conjunctival closure during aqueous shunt implantation. Study design Retrospective interventional case series of 150 patients from a single institution including historical controls from before the introduction of the change in technique. The surgery was performed by multiple glaucoma surgeons. Results One hundred and fifty eyes of 150 patients were identified. The mean age was 54.3 ± 21.1 years. Previous surgery included: cataract extraction (34.7%), trabeculectomy (36%) and retinal surgery (15.3%). All operations were carried out by either a consultant (57%) or fellow (43%). A Baerveldt Glaucoma Implant (Advanced Medical Optics, Santa Ana, California, USA) was used in 149 eyes. Conventional surgery (CS) was performed for 91 eyes and fibrin glue (FG) was used for 59 eyes. Compared with conventional surgery (CS) in which the donor patch graft and conjunctiva were sutured, use of fibrin glue (FG) reduced the overall mean operating time by 11.2 min ± 6.4 min (P = 0.031), though much less for consultants (8.5 min ± 6.2 min) (P = 0.16) than fellows (32.9 min ± 7.2 min) (P < 0.0001). There were four cases of conjunctival dehiscence-three in the FG group and one in the CS group (P = 0.30). Only one patient required re-suturing in the FG group. Conclusions The use of fibrin glue is safe and effective during aqueous shunt implantation. We have shown that the mean operating time can be reduced significantly with the use of fibrin glue which has significant implications for resource utilisation.

Research paper thumbnail of Long-Term Outcome of Intravitreal Bevacizumab Followed by Ahmed Valve Implantation in the Management of Neovascular Glaucoma

Seminars in ophthalmology, Jan 9, 2017

To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the man... more To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the management of neovascular glaucoma in a patient group with extended follow-up. The records of 16 patients (18 eyes) with neovascular glaucoma refractory to medical therapy who presented to a single surgeon between 2006-2008 were reviewed. Patients received pan-retinal photocoagulation and then intravitreal Bevacizumab followed by Ahmed valve implantation. The main outcome measures were: control of IOP (with or without additional medication), visual acuity (VA) and failure (IOP >21 mmHg or <6 mmHg, reoperation for glaucoma, or loss of light perception). Pre-operatively, all patients received pan-retinal photocoagulation followed by IVB at a mean of 15.9 (range 4-60) days prior to AGV. The mean pre-operative IOP was 37.1 mmHg (±13.4) on 3.2 (±0.87) medications. Of the 18 eyes, 14 eyes (78%) were treated with AGV alone and 4 eyes (22%) with AGV combined with cataract extraction. Sixteen ...

Research paper thumbnail of Fronto-orbital mucocele and orbital involvement in occult obstructive frontal sinus disease

The British journal of ophthalmology, Jan 14, 2015

To describe the clinical features of orbital involvement arising from occult obstructive frontal ... more To describe the clinical features of orbital involvement arising from occult obstructive frontal sinus disease and to highlight key features to aid diagnosis. A retrospective review of the case notes of 15 patients who presented to three regional oculoplastics units over a 7-year period were reviewed. Patient demographics, clinical characteristics, relevant medical history, microbiology results, imaging, management and outcomes were assessed. The mean age of our patients was 55 years. Pain was the presenting feature in 8 patients while 14 presented with upper lid swelling and redness. This swelling was medial in 60% and diffuse in 40% of patients. Proptosis was noted in 11 patients. The correct diagnosis was suspected in only 53% of patients at the time of first presentation to an ophthalmologist. The mean time from onset of symptoms to the time of correct diagnosis was 53 weeks (median 3 weeks). On direct questioning, eight patients reported a previous history of intermittent upper...

Research paper thumbnail of A Case of Fungal Keratitis Secondary to Cylindrocarpon Destructans*

Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans ... more Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans and to highlight the issues with the use of topical steroids, the duration of antifungal treatment and the potential role of topical ciclosporin. Methods: A patient presented following being injured in the left eye by a fuchsia plant. Data was collected by slit lamp examination and review of the case notes and microbiology reports. Results: No organisms were cultured from a cor-neal scrape however cultures from a corneal biopsy identified cylindrocarpon species morphologically resembling Cyl-indrocarpon destructans. The patient responded well to topical amphotericin and clotrimazole and oral voriconazole but, developed a corneal perforation, which required an urgent tectonic penetrating keratoplasty (PKP). Despite being on topical dexamethasone and natamycin, the patient presented two months post-operatively with a corneal epithelial de-fect and a large hypopyon. Subsequently, the patien...

Research paper thumbnail of A Case of Severe Hydroxychloroquine-Induced Retinal Toxicity in a Patient with Recent Onset of Renal Impairment: A Review of the Literature on the Use of Hydroxychloroquine in Renal Impairment

which permits unrestricted use, distribution, and reproduction in any medium, provided the origin... more which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We present a case of a 67-year-old female who presented with a twelve-month history of progressive blurred vision in both eyes. The patient was on hydroxychloroquine 200mg twice a day for eight years for the treatment of scarring alopecia. Two years prior to presenting, the patient was found to have chronic kidney disease stage 3 secondary to hypertension. Examination revealed bilateral reduced visual acuities with attenuated arterioles and pigmentary changes on retinal assessment. Goldmann visual fields showed grossly constricted fields in both eyes. The patient was diagnosed with retinal toxicity secondary to hydroxychloroquine probably potentiated by renal impairment. Risk factors for retinal toxicity secondary to hydroxychloroquine can be broadly divided into dose-related and patient-related factors. Our patient developed severe retinal toxicity despite bei...

Research paper thumbnail of Outcomes of surgical iridectomy for the management of acute angle closure in patients with uveitis

Investigative Ophthalmology & Visual Science, 2016

Research paper thumbnail of A Case of Refractory Neovascular Glaucoma Treated With a XEN 45 Implant

Research paper thumbnail of A Case of Fungal Keratitis Secondary to Cylindrocarpon Destructans

Open Journal of Ophthalmology, 2012

Research paper thumbnail of The Long-term Outcomes of Glaucoma Drainage Device in Pediatric Glaucoma

Journal of glaucoma, Jan 14, 2014

To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric pati... more To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric patients. Retrospective, noncomparative study including all patients below 18 years old who underwent Baerveldt or Molteno GDD implantation by a single surgeon. Mitomycin-C was used in most cases. Success was defined as postoperative intraocular pressure (IOP) between 6 and 22 mm Hg and a 20% reduction in IOP. Sixty-nine eyes of 52 patients were analyzed. Mean follow-up length was 45.7±25.2 months (range, 6 to 101 mo). At last postoperative visit, mean IOP and median number of antiglaucoma medications had been significantly reduced from baseline. Cumulative probability of qualified success was 95.6% at 1 year and declined to 71.3% at 5 years and 39.7% at 8 years. Multivariate analysis showed that non-white patients and previous history of cyclophotocoagulation had higher risks of failure at 5 years. Hypotony was the most common complication (39.1%) in the first 6 months postoperatively. Bleb...

Research paper thumbnail of Outcomes of surgical iridectomy for the management of acute angle closure in patients with uveitis

Investigative Ophthalmology & Visual Science, Sep 26, 2016

Research paper thumbnail of A Case of Refractory Neovascular Glaucoma Treated With a XEN 45 Implant

Journal of Glaucoma, Oct 1, 2018

Research paper thumbnail of Evaluation of patients&rsquo; experiences at different stages of the intravitreal injection procedure &ndash; what can be improved?

Clinical Ophthalmology, Oct 1, 2011

Intravitreal injection of ranibizumab has become one of the most commonly performed ophthalmic pr... more Intravitreal injection of ranibizumab has become one of the most commonly performed ophthalmic procedures. It is timely to conduct an evaluation of the injection procedure from the patient's perspective so as to determine ways to improve patient experience. The purpose of this study was to quantitatively describe patients' experiences of the different stages of the intravitreal injection procedure and provide suggestions for improvement. Method: Following intravitreal injection, patients were administered a questionnaire to score the distress felt for each of ten parts of the whole injection process from the initial waiting to the final instillation of topical antibiotic at the end. A score of higher than 4 was regarded as significantly unpleasant. The proportion of scores above 4 for each step was used to evaluate the relative distress experienced by patients for the different parts of the procedure. Results: A total of 42 patients were surveyed. The step with the highest percentage of patients scoring more than 4 was the injection step (19%). However, cumulatively, the steps relating to the application of the drape, the speculum, and the removal of drape accounted for 53% of scores greater than 4. Conclusion: There is considerable variation in how patients tolerate different stages of the injection procedure. The needle entry was the most unpleasant step followed by the draping steps cumulatively. Use of subconjunctival anesthesia, a perforated drape, and alternative lid exclusion devices may help to improve the patient's tolerability of the procedure and experience.

Research paper thumbnail of Ocular Manifestations of Scleroderma

Survey of Ophthalmology, Mar 1, 2009

Systemic sclerosis is a chronic multi-system disorder predominantly affecting the skin, musculosk... more Systemic sclerosis is a chronic multi-system disorder predominantly affecting the skin, musculoskeletal, gastrointestinal, pulmonary, and renal systems. Although the exact etiology is unknown, recent evidence suggests that immune activation play a pivotal role in the pathogenesis. Ocular involvement in systemic sclerosis has been documented; however, due to the rare nature of the disease, most papers have been single case reports or small case series. This review paper aims to consolidate the findings of previous papers with a view to providing a comprehensive review of the ocular manifestations of systemic sclerosis.

Research paper thumbnail of The use of fibrin glue during aqueous shunt surgery

Eye, May 12, 2020

Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a do... more Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a donor patch graft and in conjunctival closure during aqueous shunt implantation. Study design Retrospective interventional case series of 150 patients from a single institution including historical controls from before the introduction of the change in technique. The surgery was performed by multiple glaucoma surgeons. Results One hundred and fifty eyes of 150 patients were identified. The mean age was 54.3 ± 21.1 years. Previous surgery included: cataract extraction (34.7%), trabeculectomy (36%) and retinal surgery (15.3%). All operations were carried out by either a consultant (57%) or fellow (43%). A Baerveldt Glaucoma Implant (Advanced Medical Optics, Santa Ana, California, USA) was used in 149 eyes. Conventional surgery (CS) was performed for 91 eyes and fibrin glue (FG) was used for 59 eyes. Compared with conventional surgery (CS) in which the donor patch graft and conjunctiva were sutured, use of fibrin glue (FG) reduced the overall mean operating time by 11.2 min ± 6.4 min (P = 0.031), though much less for consultants (8.5 min ± 6.2 min) (P = 0.16) than fellows (32.9 min ± 7.2 min) (P < 0.0001). There were four cases of conjunctival dehiscence-three in the FG group and one in the CS group (P = 0.30). Only one patient required re-suturing in the FG group. Conclusions The use of fibrin glue is safe and effective during aqueous shunt implantation. We have shown that the mean operating time can be reduced significantly with the use of fibrin glue which has significant implications for resource utilisation.

Research paper thumbnail of A Case of Fungal Keratitis Secondary to Cylindrocarpon Destructans

Open Journal of Ophthalmology, 2012

Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans ... more Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans and to highlight the issues with the use of topical steroids, the duration of antifungal treatment and the potential role of topical ciclosporin. Methods: A patient presented following being injured in the left eye by a fuchsia plant. Data was collected by slit lamp examination and review of the case notes and microbiology reports. Results: No organisms were cultured from a corneal scrape however cultures from a corneal biopsy identified cylindrocarpon species morphologically resembling Cylindrocarpon destructans. The patient responded well to topical amphotericin and clotrimazole and oral voriconazole but, developed a corneal perforation, which required an urgent tectonic penetrating keratoplasty (PKP). Despite being on topical dexamethasone and natamycin, the patient presented two months post-operatively with a corneal epithelial defect and a large hypopyon. Subsequently, the patient developed a deep corneal infiltrate and corneal vascularisation with a persistent epithelial defect. Conclusion: This is the first reported case of keratitis caused by Cylindrocarpon destructans. The case highlights: the contentious issues in the use of topical steroids following PKP and the duration of antifungal treatment both in primary infection and following PKP. Furthermore, the case accentuates a potential role for ciclosporin as an alternative to steroids following PKP.

Research paper thumbnail of The Long-term Outcomes of Glaucoma Drainage Device in Pediatric Glaucoma

Journal of Glaucoma, Mar 1, 2016

To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric pati... more To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric patients. Retrospective, noncomparative study including all patients below 18 years old who underwent Baerveldt or Molteno GDD implantation by a single surgeon. Mitomycin-C was used in most cases. Success was defined as postoperative intraocular pressure (IOP) between 6 and 22 mm Hg and a 20% reduction in IOP. Sixty-nine eyes of 52 patients were analyzed. Mean follow-up length was 45.7±25.2 months (range, 6 to 101 mo). At last postoperative visit, mean IOP and median number of antiglaucoma medications had been significantly reduced from baseline. Cumulative probability of qualified success was 95.6% at 1 year and declined to 71.3% at 5 years and 39.7% at 8 years. Multivariate analysis showed that non-white patients and previous history of cyclophotocoagulation had higher risks of failure at 5 years. Hypotony was the most common complication (39.1%) in the first 6 months postoperatively. Bleb encapsulation occurred in 16.4% of patients. Endophthalmitis occurred in 5.8% of cases and necessitated removal of the GDD. GDD surgery can work adequately in children in the long term. A relatively high complications rate should be expected, but in most cases these can be managed successfully. Early recognition of complications is necessary to ensure a good outcome.

Research paper thumbnail of Long-Term Outcome of Intravitreal Bevacizumab Followed by Ahmed Valve Implantation in the Management of Neovascular Glaucoma

Seminars in Ophthalmology, Oct 9, 2017

To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the man... more To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the management of neovascular glaucoma in a patient group with extended follow-up. The records of 16 patients (18 eyes) with neovascular glaucoma refractory to medical therapy who presented to a single surgeon between 2006-2008 were reviewed. Patients received pan-retinal photocoagulation and then intravitreal Bevacizumab followed by Ahmed valve implantation. The main outcome measures were: control of IOP (with or without additional medication), visual acuity (VA) and failure (IOP &amp;amp;amp;amp;gt;21 mmHg or &amp;amp;amp;amp;lt;6 mmHg, reoperation for glaucoma, or loss of light perception). Pre-operatively, all patients received pan-retinal photocoagulation followed by IVB at a mean of 15.9 (range 4-60) days prior to AGV. The mean pre-operative IOP was 37.1 mmHg (±13.4) on 3.2 (±0.87) medications. Of the 18 eyes, 14 eyes (78%) were treated with AGV alone and 4 eyes (22%) with AGV combined with cataract extraction. Sixteen eyes (89%) received mitomycin C treatment intraoperatively. Post-operatively, the mean follow-up period was 63 months (24-84). At final follow-up, the success rate was 50% (33.3% complete, 16.7% qualified) with a mean IOP of 18.1 mmHg (±9.5) on a mean number of 1.5 (±1.6) medications. The failure rate was 50%, with five eyes (27.8%) not meeting the IOP criteria for success (of these, three eyes required additional surgery to lower the IOP) and five eyes (22.2%) lost light perception. Intravitreal Bevacizumab followed by AGV offers long-term control of IOP without additional surgical intervention in the majority of cases.

Research paper thumbnail of Challenges in the management of ocular snake-bite injuries

International Ophthalmology, Jan 10, 2010

Research paper thumbnail of A Scleroderma Patient Complaining of Dry and Gritty Sensation of the Eyes

Springer eBooks, 2011

Systemic sclerosis (SSc) patients can exhibit a multitude of ocular manifestations; however, the ... more Systemic sclerosis (SSc) patients can exhibit a multitude of ocular manifestations; however, the commonest is keratoconjunctivitis sicca (dry eyes). When dry eyes are associated with a dry mouth and the presence of certain autoantibodies, a diagnosis of secondary Sjogren’s syndrome must be considered. Other ocular manifestations include eyelid skin and vessel changes, glaucoma, and hypoperfusion of the choroid associated with retinal pigment changes. The aim of management of dry eyes is to provide symptomatic relief, reduce ocular surface inflammation, and prevent complications. This can be achieved by treatment of the tear deficiency and by suppressing inflammation. The physician should consider referring symptomatic SSc patients to an ophthalmologist.

Research paper thumbnail of Contact lens-related microbial keratitis in deployed British military personnel

British Journal of Ophthalmology, 2010

To quantify the effect of contact lens-related microbial keratitis (CLMK) in the British Defence ... more To quantify the effect of contact lens-related microbial keratitis (CLMK) in the British Defence personnel particularly those in active service in the Arabian Gulf and Afghanistan between June 2001 and January 2007. A retrospective review of all British military personnel who developed contact lens-related keratitis during deployment. A total of 27 cases (27, eyes, 23, male; median age 26 (range 19-41) years) were identified, of whom 19 cases were evacuated from Iraq alone. Twenty cases were associated with soft contact lens wear. Seven cases were culture positive, of which five grew Pseudomonas aeruginosa. The overall incidence of CLMK in contact lens wearer in the British military in Iraq was 35 per 10,000. There was an increased incidence during the summer months. Seventeen eyes (63%) lost more than one line of visual acuity with a resultant permanent medical downgrading in duty capability in nine cases. CLMK has a poorer outcome in a deployed military environment when compared to the civilian setting. Increased awareness of the health risks of contact lens wear together with standardised treatment regimens based on improved pathogen detection using molecular diagnostics have improved outcomes.

Research paper thumbnail of The use of fibrin glue during aqueous shunt surgery

Eye, 2020

Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a do... more Purpose To examine the safety and economic effect of using fibrin glue to reduce suturing of a donor patch graft and in conjunctival closure during aqueous shunt implantation. Study design Retrospective interventional case series of 150 patients from a single institution including historical controls from before the introduction of the change in technique. The surgery was performed by multiple glaucoma surgeons. Results One hundred and fifty eyes of 150 patients were identified. The mean age was 54.3 ± 21.1 years. Previous surgery included: cataract extraction (34.7%), trabeculectomy (36%) and retinal surgery (15.3%). All operations were carried out by either a consultant (57%) or fellow (43%). A Baerveldt Glaucoma Implant (Advanced Medical Optics, Santa Ana, California, USA) was used in 149 eyes. Conventional surgery (CS) was performed for 91 eyes and fibrin glue (FG) was used for 59 eyes. Compared with conventional surgery (CS) in which the donor patch graft and conjunctiva were sutured, use of fibrin glue (FG) reduced the overall mean operating time by 11.2 min ± 6.4 min (P = 0.031), though much less for consultants (8.5 min ± 6.2 min) (P = 0.16) than fellows (32.9 min ± 7.2 min) (P < 0.0001). There were four cases of conjunctival dehiscence-three in the FG group and one in the CS group (P = 0.30). Only one patient required re-suturing in the FG group. Conclusions The use of fibrin glue is safe and effective during aqueous shunt implantation. We have shown that the mean operating time can be reduced significantly with the use of fibrin glue which has significant implications for resource utilisation.

Research paper thumbnail of Long-Term Outcome of Intravitreal Bevacizumab Followed by Ahmed Valve Implantation in the Management of Neovascular Glaucoma

Seminars in ophthalmology, Jan 9, 2017

To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the man... more To report the outcome of intravitreal Bevacizumab followed by Ahmed valve implantation in the management of neovascular glaucoma in a patient group with extended follow-up. The records of 16 patients (18 eyes) with neovascular glaucoma refractory to medical therapy who presented to a single surgeon between 2006-2008 were reviewed. Patients received pan-retinal photocoagulation and then intravitreal Bevacizumab followed by Ahmed valve implantation. The main outcome measures were: control of IOP (with or without additional medication), visual acuity (VA) and failure (IOP >21 mmHg or <6 mmHg, reoperation for glaucoma, or loss of light perception). Pre-operatively, all patients received pan-retinal photocoagulation followed by IVB at a mean of 15.9 (range 4-60) days prior to AGV. The mean pre-operative IOP was 37.1 mmHg (±13.4) on 3.2 (±0.87) medications. Of the 18 eyes, 14 eyes (78%) were treated with AGV alone and 4 eyes (22%) with AGV combined with cataract extraction. Sixteen ...

Research paper thumbnail of Fronto-orbital mucocele and orbital involvement in occult obstructive frontal sinus disease

The British journal of ophthalmology, Jan 14, 2015

To describe the clinical features of orbital involvement arising from occult obstructive frontal ... more To describe the clinical features of orbital involvement arising from occult obstructive frontal sinus disease and to highlight key features to aid diagnosis. A retrospective review of the case notes of 15 patients who presented to three regional oculoplastics units over a 7-year period were reviewed. Patient demographics, clinical characteristics, relevant medical history, microbiology results, imaging, management and outcomes were assessed. The mean age of our patients was 55 years. Pain was the presenting feature in 8 patients while 14 presented with upper lid swelling and redness. This swelling was medial in 60% and diffuse in 40% of patients. Proptosis was noted in 11 patients. The correct diagnosis was suspected in only 53% of patients at the time of first presentation to an ophthalmologist. The mean time from onset of symptoms to the time of correct diagnosis was 53 weeks (median 3 weeks). On direct questioning, eight patients reported a previous history of intermittent upper...

Research paper thumbnail of A Case of Fungal Keratitis Secondary to Cylindrocarpon Destructans*

Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans ... more Purpose: To report the first human case of fungal keratitis caused by Cylindrocarpon destructans and to highlight the issues with the use of topical steroids, the duration of antifungal treatment and the potential role of topical ciclosporin. Methods: A patient presented following being injured in the left eye by a fuchsia plant. Data was collected by slit lamp examination and review of the case notes and microbiology reports. Results: No organisms were cultured from a cor-neal scrape however cultures from a corneal biopsy identified cylindrocarpon species morphologically resembling Cyl-indrocarpon destructans. The patient responded well to topical amphotericin and clotrimazole and oral voriconazole but, developed a corneal perforation, which required an urgent tectonic penetrating keratoplasty (PKP). Despite being on topical dexamethasone and natamycin, the patient presented two months post-operatively with a corneal epithelial de-fect and a large hypopyon. Subsequently, the patien...

Research paper thumbnail of A Case of Severe Hydroxychloroquine-Induced Retinal Toxicity in a Patient with Recent Onset of Renal Impairment: A Review of the Literature on the Use of Hydroxychloroquine in Renal Impairment

which permits unrestricted use, distribution, and reproduction in any medium, provided the origin... more which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We present a case of a 67-year-old female who presented with a twelve-month history of progressive blurred vision in both eyes. The patient was on hydroxychloroquine 200mg twice a day for eight years for the treatment of scarring alopecia. Two years prior to presenting, the patient was found to have chronic kidney disease stage 3 secondary to hypertension. Examination revealed bilateral reduced visual acuities with attenuated arterioles and pigmentary changes on retinal assessment. Goldmann visual fields showed grossly constricted fields in both eyes. The patient was diagnosed with retinal toxicity secondary to hydroxychloroquine probably potentiated by renal impairment. Risk factors for retinal toxicity secondary to hydroxychloroquine can be broadly divided into dose-related and patient-related factors. Our patient developed severe retinal toxicity despite bei...

Research paper thumbnail of Outcomes of surgical iridectomy for the management of acute angle closure in patients with uveitis

Investigative Ophthalmology & Visual Science, 2016

Research paper thumbnail of A Case of Refractory Neovascular Glaucoma Treated With a XEN 45 Implant

Research paper thumbnail of A Case of Fungal Keratitis Secondary to Cylindrocarpon Destructans

Open Journal of Ophthalmology, 2012

Research paper thumbnail of The Long-term Outcomes of Glaucoma Drainage Device in Pediatric Glaucoma

Journal of glaucoma, Jan 14, 2014

To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric pati... more To evaluate the long-term outcomes and safety of glaucoma drainage device (GDD) in pediatric patients. Retrospective, noncomparative study including all patients below 18 years old who underwent Baerveldt or Molteno GDD implantation by a single surgeon. Mitomycin-C was used in most cases. Success was defined as postoperative intraocular pressure (IOP) between 6 and 22 mm Hg and a 20% reduction in IOP. Sixty-nine eyes of 52 patients were analyzed. Mean follow-up length was 45.7±25.2 months (range, 6 to 101 mo). At last postoperative visit, mean IOP and median number of antiglaucoma medications had been significantly reduced from baseline. Cumulative probability of qualified success was 95.6% at 1 year and declined to 71.3% at 5 years and 39.7% at 8 years. Multivariate analysis showed that non-white patients and previous history of cyclophotocoagulation had higher risks of failure at 5 years. Hypotony was the most common complication (39.1%) in the first 6 months postoperatively. Bleb...