Effective Phacoemulsification Time and Macular Thickness Changes on Optical Coherence Tomography Following Uneventful Cataract Surgery (original) (raw)
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Journal of Evidence Based Medicine and Healthcare
BACKGROUND Phacoemulsification for cataract is the standard surgery in recent times with very good results and least complications. Macular area is the most important part of the retina, which is very sensitive for any type of insult on the Eye. It takes different durations for the macula to return to normal condition after phacoemulsification. We wanted to evaluate the macular thickness change occurring after uncomplicated phacoemulsification cataract surgery in postoperative period by using spectral-domain optical coherence tomography. METHODS In this prospective study, a total of 100 patients who underwent uncomplicated phacoemulsification cataract surgery were evaluated. Complete ophthalmological examination was done preoperatively. Patients were followed on day 7, week 4 and week 8 postoperatively. At each visit a complete ophthalmological examination was done and optical coherence tomography of macula was performed. RESULTS In the current study, we found a significant subclinical increase in central macular thickness at postoperative week 1, week 4 and week 8. Cystoid macular oedema was not noted in any of the patients. A statistically significant increase in foveal volume was observed on day 7, week 4 and week 8 (p value 0.001). CONCLUSIONS There was increase in central macular thickness and foveal volume after the uncomplicated phacoemulsification cataract surgery on day 7, week 4, and week 8 postoperatively. The increase in macular thickness was sub-clinical and did not affect final visual outcome in any patient. Further evaluation is required to trace its return to preoperative value.
Cureus, 2021
To estimate the incidence of central macular edema (CME) following cataract surgery and to correlate the central macular thickness (CMT) to the best-corrected visual acuity (BCVA). Methods This cohort study in 2018-2019 included cataract grades I and II. They were operated by phacoemulsification and intraocular lens implantation. CMT was measured using spectral-domain optical coherence tomogram (OCT) before and for three months at one-month intervals after surgery. The change in BCVA and CMT were correlated at three months after surgery. Incidence of CME (more than two SD of pre-surgery CMT) was calculated. Results The mean CMT for 138 eyes operated for cataracts measured before and at one, two, and three months after uneventful surgery was 213 ± 24.9, 222.7 ± 25.5, 217.8 ± 34.8, and 215 ± 28.3 µ, respectively. The median BCVA at three follow-ups was 0.2 (interquartile range [IQR] 0.1; 0.2), 0.1 (IQR 0.0; 0.1), and 0.0 (0.0; 0.03), respectively. The incidence of CME at one and three months was 18% and 4.3%, respectively. The CMT and VA (LogMAR) one month after cataract surgery were significantly correlated (r = 0.4, Pearson P < 0.001). The visual improvement between one and two months post-surgery was not significantly correlated with CMT decline (r = 0.06, Pearson P = 0.5). The BCVA at one, two, and three months was 0.0 LogMAR in 28 (20.3%), 52 (37.7%), and 104 (75.4%) eyes, respectively. Linear regression model, age and diabetes are the risk factors at one month. At two and three months, no significant risk factors were found. Conclusion CME post-cataract surgery seems to be transient. CMT changes correlate with best-corrected vision changes and seem to be affected by age and presence of diabetes in the 1st month after surgery.
The Egyptian Journal of Hospital Medicine, 2019
Introduction: Cataract surgery by phacoemulsification is an invasive procedure that has become the most common intraocular surgery and usually improves the visual outcome. However, it is an inflammatory process to the eye and in many cases can lead to worsening of pre-existing retinal diseases such as diabetic macular edema or development of new diseases such as Irvine-Gass syndrome. This inflammatory response is mostly induced by the release of prostaglandins. Objective: The aim of this study was to evaluate the effect of uneventful phacoemulsification on the morphology and thickness of the macula and the choroid. Patients and Methods: In 30 eyes from 30 patients (15 non-diabetic and 15 diabetic), central retinal macular thickness, and subfoveal choroidal thickness, were measured preoperatively and one month and three months after phacoemulsification using optical coherence tomography. Results: In non-diabetic patients, central macular thickness was 202.80±22.39 μm before phaco and...
PAFMJ, 2022
Objective: To analyze the effects of uneventful phacoemulsification surgery on choroidal thickness using spectral domain optical coherence tomography. Study Design: Prospective comparative study. Place and Duration of Study: Armed Forces Institute of Ophthalmology, Rawalpindi, from Jun 2018 to Jun 2019. Methodology: In this prospective study, 300 eyes of 300 patients undergoing phacoemulsification surgery were included. All patients underwent detailed ophthalmologic examination, including measurement with optical biometry, intraocular pressure and choroid thickness. The choroidal thickness was measured perpendicularly at the fovea using spectral domain optical coherence tomography preoperatively and 1 month postoperatively. Changes in intraocular pressure and choroid thickness after surgery were evaluated. Results: There was a statistically significant increase in the choroid thickness in early postoperative period (p-value <0.01). This increment was prominent in sub foveal regio...
Reviews in Clinical Medicine, 2020
Introduction This study aimed to investigate the effect of phacoemulsification on macular thickness and volume in diabetic patients without retinopathy using optical coherence tomography (OCT).Methods This prospective study included 37 diabetics and 55 non-diabetic patients (n=92) with cataract who were scheduled for phacoemulsification. The participants were entered into the study based on the inclusion and exclusion criteria following a complete eye examination. Macular thickness and volume were measured preoperatively as well as one month postoperatively using the OCT (Spectralis; Heidelberg Engineering, Heidelberg, Germany).Results The present study analyzed 76 eyes of 76 patients with immature cataract. No significant differences were observed between diabetic and non-diabetic groups in terms of thickness and volume in the macular area. However, the results showed a significant increase in both groups regarding the thickness and volume after phacoemulsification. Conclusion The ...
European journal of ophthalmology, 2014
To study postoperative macular thickness fluctuations measured by spectral-domain optical coherence tomography (SD-OCT) and to investigate a potential correlation among macular edema (ME) incidence, cumulative dissipated energy (CDE) released during phacoemulsification, and vitreoretinal interface status. This is a prospective, cross-sectional study of 106 cataract patients with no macular disorder who underwent phacoemulsification. Best-corrected visual acuity measurement, slit-lamp examination, OCT scans were performed preoperatively and 30 and 90 days postoperatively. The intraoperative parameters measured were CDE and total phacoemulsification time. The SD-OCT parameters assessed were central subfield thickness (CST), cube average thickness (CAT), cube macular volume, vitreoretinal interface status, and presence of cystoid or diffuse ME. Four patients (3.8%) developed subclinical ME. Regarding ME, there was no significant difference between patients with presence or absence of p...
ABCS Health Sciences, 2020
Introduction: The incidence of cystoid macular edema (CME) after cataract surgery varies substantially and depending on the diagnostic method used. In addition, other factors that influence the incidence of CME are the technique of surgery and the associated comorbidities. Objective: The aim of the present study was to evaluate the incidence of EMC after uncomplicated phacoemulsification surgery, using the spectral domain optical coherence tomography (OCT). Methods: The incidence of sub-clinical and clinical CME was evaluated in 14 patients who underwent uncomplicated phacoemulsification surgery, using OCT before the surgical procedure and after seven and 28 days after it. The volunteers could not use a prostaglandin analogue or present any retinopathy that compromised visual acuity. Results: The incidence of clinically significant CME was 6.4%, however retinal thickening by OCT was observed in all patients in the fourth postoperative week. Regarding gender and laterality, the perce...
Journal of Clinical & Experimental Ophthalmology
Background: Cataract extraction affects some of the anterior chamber (AC) parameters like AC depth (ACD) and the width of the AC angle. Different techniques are used to evaluate these effects before and after cataract extraction. Purpose: To evaluate the results of Anterior Segment Optical Coherence Tomography (AS-OCT), Ultrasound Biomicroscopy (UBM) & Pentacam in evaluating the changes of the anterior segment parameters after cataract extraction. Methods: Prospective non-randomized study including 40 cataractous eyes. AS-OCT, UBM and Pentacam were done 1 week before, 1 week and 1 month after phacoemulsification with intraocular lens (IOL) implantation, to measure ACD, AC angle width, and central corneal thickness (CCT). Results: ACD depth, AC angle width and CCT increased significantly 1 week and 1 month after surgery than the preoperative level (p<0.001), with no significant difference between 1 week and 1 month after surgery (p>0.05). No significant difference between the 3 techniques in most measures either pre-or postoperatively. Conclusion: ACD, AC angle width and CCT are significantly increased after uneventful phacoemulsification surgery and Foldable IOL implantation, which have become stabilized after 1 month of surgery with no significant difference in the measures given by AS-OCT, UBM or Pentacam.
Retinal thickness measurement after phacoemulsification
Journal of Cataract and Refractive Surgery, 2004
Thirty-five nonconsecutive patients scheduled for phacoemulsification and posterior chamber intraocular lens implantation were recruited. The best corrected visual acuity (BCVA) and macular thickness in the surgical and nonsurgical eyes were measured with the RTA prior to surgery and 1 and 6 weeks after surgery. Wilcoxon signed rank tests were used to evaluate each index of macular thickness-the mean posterior pole, perifoveal, and foveal thicknesses-over the 3 time periods and to compare the indices before surgery in surgical and nonsurgical eyes. Spearman correlations were computed for each index and the BCVA. Significance was assessed at the 5% level.