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Topography changes and endothelial cell loss after temporal 1.8 mm coaxial microincision cataract surgery (MICS)
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Abstract
INTRODUCTION. The purpose of this paper was to determine surgically-induced changes both in corneal topographic parameters and in endothelial cell loss after coaxial microincision cataract surgery (MICS) through temporal 1.8 mm incision.
MATERIALS AND METHODS. Evaluation was performed in forty eyes of thirty patients who underwent cataract surgery. Topographic parameters including corneal astigmatism, surface regularity index (SRI), and surface asymmetry index (SAI) were estimated preoperatively and at one week, four weeks, and eight weeks after surgery. A specular microscope was also used for the measurement of the corneal endothelial density (cells/mm2). The surgically-induced astigmatism (SIA) was calculated by means of vector analysis using Alpins’ method.
RESULTS. Eight weeks after surgery the final mean value of SIA was 0.42 D and the differences in topographic parameters such as corneal astigmatism, SRI, and SAI were not statistically significant. Also, the decrease in endothelial cell density eight weeks after surgery was 6.02%.
CONCLUSIONS. The changes in SIA and topographic parameters after temporal coaxial 1.8 mm MICS are minimal throughout an eight-week follow up period.
Abstract
INTRODUCTION. The purpose of this paper was to determine surgically-induced changes both in corneal topographic parameters and in endothelial cell loss after coaxial microincision cataract surgery (MICS) through temporal 1.8 mm incision.
MATERIALS AND METHODS. Evaluation was performed in forty eyes of thirty patients who underwent cataract surgery. Topographic parameters including corneal astigmatism, surface regularity index (SRI), and surface asymmetry index (SAI) were estimated preoperatively and at one week, four weeks, and eight weeks after surgery. A specular microscope was also used for the measurement of the corneal endothelial density (cells/mm2). The surgically-induced astigmatism (SIA) was calculated by means of vector analysis using Alpins’ method.
RESULTS. Eight weeks after surgery the final mean value of SIA was 0.42 D and the differences in topographic parameters such as corneal astigmatism, SRI, and SAI were not statistically significant. Also, the decrease in endothelial cell density eight weeks after surgery was 6.02%.
CONCLUSIONS. The changes in SIA and topographic parameters after temporal coaxial 1.8 mm MICS are minimal throughout an eight-week follow up period.
Keywords
corneal topography parameters, endothelial cell loss, coaxial microincision cataract surgery (MICS)
About this articleTitle
Topography changes and endothelial cell loss after temporal 1.8 mm coaxial microincision cataract surgery (MICS)
Journal
Issue
Article type
Original paper
Pages
41-45
Published online
2016-07-07
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760
Article views/downloads
924
DOI
Bibliographic record
Ophthalmol J 2016;1(2):41-45.
Keywords
corneal topography parameters
endothelial cell loss
coaxial microincision cataract surgery (MICS)
Authors
Ioannis A. Mallias
Anastasia Tasiopoulou