SRI GANESH - Academia.edu (original) (raw)
Papers by SRI GANESH
Clinical Ophthalmology, 2015
Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and aspher... more Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and asphercity, following Refractive Small Incision Lenticule Extraction (ReLEx SMILE) procedure for low, moderate, and high myopia. Methods: This retrospective, non randomized, comparative, interventional trial; included 52 eyes of 26 patients, divided in three groups: low myopia (myopia 3 D [diopters] spherical equivalent [SE]), moderate myopia (myopia 3 D and 6 D SE), and high myopia (myopia 6 D SE). All patients were treated for myopia and myopic astigmatism using ReLEx SMILE. The eyes were examined pre-operatively and 3 months post-operatively using SCHWIND SIRIUS, a three-dimensional rotating Scheimpflug camera with a Placido disc topographer to assess corneal changes with regard to keratometric power and asphericity of the cornea. Results: A statistically significant increase in mean keratometric power in the 3, 5, and 7 mm zones of the posterior corneal surface compared with its pre-ReLEx SMILE value was detected after 3 months in the moderate myopia group (pre-operative [pre-op]-6.14±0.23, post-operative [post-op]-6.29±0.22, P0.001) and high myopia group (pre-op-6.19±0.16, post-op-6.4±0.18, P0.001), but there was no significant change in keratometric power of the posterior surface in the low myopia group (pre-op-5.87±0.17, post-op-6.06±0.29, P=0.143). Asphericity (Q-value) of the posterior surface changed significantly (P0.001) after ReLEx SMILE in the moderate myopia group in the 3, 5, and 7 mm zones, and in the high myopia group in the 3 and 7 mm zones; but there was no significant change in the Q-value in the low myopia group in all three zones (pre-op 0.23±0.43, post-op-0.40±0.71, P=0.170), and in the high myopia group in the 5 mm zone (P=0.228). Conclusion: ReLEx SMILE causes significant changes in posterior corneal keratometric power and asphericity in moderate and high myopia, but the effect is subtle and insignificant in low myopia.
Clinical Ophthalmology, 2015
Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and aspher... more Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and asphercity, following Refractive Small Incision Lenticule Extraction (ReLEx SMILE) procedure for low, moderate, and high myopia. Methods: This retrospective, non randomized, comparative, interventional trial; included 52 eyes of 26 patients, divided in three groups: low myopia (myopia 3 D [diopters] spherical equivalent [SE]), moderate myopia (myopia 3 D and 6 D SE), and high myopia (myopia 6 D SE). All patients were treated for myopia and myopic astigmatism using ReLEx SMILE. The eyes were examined pre-operatively and 3 months post-operatively using SCHWIND SIRIUS, a three-dimensional rotating Scheimpflug camera with a Placido disc topographer to assess corneal changes with regard to keratometric power and asphericity of the cornea. Results: A statistically significant increase in mean keratometric power in the 3, 5, and 7 mm zones of the posterior corneal surface compared with its pre-ReLEx SMILE value was detected after 3 months in the moderate myopia group (pre-operative [pre-op]-6.14±0.23, post-operative [post-op]-6.29±0.22, P0.001) and high myopia group (pre-op-6.19±0.16, post-op-6.4±0.18, P0.001), but there was no significant change in keratometric power of the posterior surface in the low myopia group (pre-op-5.87±0.17, post-op-6.06±0.29, P=0.143). Asphericity (Q-value) of the posterior surface changed significantly (P0.001) after ReLEx SMILE in the moderate myopia group in the 3, 5, and 7 mm zones, and in the high myopia group in the 3 and 7 mm zones; but there was no significant change in the Q-value in the low myopia group in all three zones (pre-op 0.23±0.43, post-op-0.40±0.71, P=0.170), and in the high myopia group in the 5 mm zone (P=0.228). Conclusion: ReLEx SMILE causes significant changes in posterior corneal keratometric power and asphericity in moderate and high myopia, but the effect is subtle and insignificant in low myopia.
Journal of Refractive Surgery, 2014
Journal of the European …, 2011
SiC f /SiC composites with BN interface were prepared through isothermalisobaric chemical vapour... more SiC f /SiC composites with BN interface were prepared through isothermalisobaric chemical vapour infiltration process. Room temperature mechanical properties such as tensile, flexural, inter-laminar shear strength and fracture toughness (K IC ) were studied for the ...
Clinical Ophthalmology, 2015
Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and aspher... more Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and asphercity, following Refractive Small Incision Lenticule Extraction (ReLEx SMILE) procedure for low, moderate, and high myopia. Methods: This retrospective, non randomized, comparative, interventional trial; included 52 eyes of 26 patients, divided in three groups: low myopia (myopia 3 D [diopters] spherical equivalent [SE]), moderate myopia (myopia 3 D and 6 D SE), and high myopia (myopia 6 D SE). All patients were treated for myopia and myopic astigmatism using ReLEx SMILE. The eyes were examined pre-operatively and 3 months post-operatively using SCHWIND SIRIUS, a three-dimensional rotating Scheimpflug camera with a Placido disc topographer to assess corneal changes with regard to keratometric power and asphericity of the cornea. Results: A statistically significant increase in mean keratometric power in the 3, 5, and 7 mm zones of the posterior corneal surface compared with its pre-ReLEx SMILE value was detected after 3 months in the moderate myopia group (pre-operative [pre-op]-6.14±0.23, post-operative [post-op]-6.29±0.22, P0.001) and high myopia group (pre-op-6.19±0.16, post-op-6.4±0.18, P0.001), but there was no significant change in keratometric power of the posterior surface in the low myopia group (pre-op-5.87±0.17, post-op-6.06±0.29, P=0.143). Asphericity (Q-value) of the posterior surface changed significantly (P0.001) after ReLEx SMILE in the moderate myopia group in the 3, 5, and 7 mm zones, and in the high myopia group in the 3 and 7 mm zones; but there was no significant change in the Q-value in the low myopia group in all three zones (pre-op 0.23±0.43, post-op-0.40±0.71, P=0.170), and in the high myopia group in the 5 mm zone (P=0.228). Conclusion: ReLEx SMILE causes significant changes in posterior corneal keratometric power and asphericity in moderate and high myopia, but the effect is subtle and insignificant in low myopia.
Clinical Ophthalmology, 2015
Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and aspher... more Purpose: To compare the posterior corneal curvature changes, in terms of corneal power and asphercity, following Refractive Small Incision Lenticule Extraction (ReLEx SMILE) procedure for low, moderate, and high myopia. Methods: This retrospective, non randomized, comparative, interventional trial; included 52 eyes of 26 patients, divided in three groups: low myopia (myopia 3 D [diopters] spherical equivalent [SE]), moderate myopia (myopia 3 D and 6 D SE), and high myopia (myopia 6 D SE). All patients were treated for myopia and myopic astigmatism using ReLEx SMILE. The eyes were examined pre-operatively and 3 months post-operatively using SCHWIND SIRIUS, a three-dimensional rotating Scheimpflug camera with a Placido disc topographer to assess corneal changes with regard to keratometric power and asphericity of the cornea. Results: A statistically significant increase in mean keratometric power in the 3, 5, and 7 mm zones of the posterior corneal surface compared with its pre-ReLEx SMILE value was detected after 3 months in the moderate myopia group (pre-operative [pre-op]-6.14±0.23, post-operative [post-op]-6.29±0.22, P0.001) and high myopia group (pre-op-6.19±0.16, post-op-6.4±0.18, P0.001), but there was no significant change in keratometric power of the posterior surface in the low myopia group (pre-op-5.87±0.17, post-op-6.06±0.29, P=0.143). Asphericity (Q-value) of the posterior surface changed significantly (P0.001) after ReLEx SMILE in the moderate myopia group in the 3, 5, and 7 mm zones, and in the high myopia group in the 3 and 7 mm zones; but there was no significant change in the Q-value in the low myopia group in all three zones (pre-op 0.23±0.43, post-op-0.40±0.71, P=0.170), and in the high myopia group in the 5 mm zone (P=0.228). Conclusion: ReLEx SMILE causes significant changes in posterior corneal keratometric power and asphericity in moderate and high myopia, but the effect is subtle and insignificant in low myopia.
Journal of Refractive Surgery, 2014
Journal of the European …, 2011
SiC f /SiC composites with BN interface were prepared through isothermalisobaric chemical vapour... more SiC f /SiC composites with BN interface were prepared through isothermalisobaric chemical vapour infiltration process. Room temperature mechanical properties such as tensile, flexural, inter-laminar shear strength and fracture toughness (K IC ) were studied for the ...