الفهرس 
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Abstract
The aim of this study was to evaluate corneal endothelial cell changes in patients undergoing YAG laser capsulotomy.
This study included 43 eyes (23 right and 20 left eyes) of 43 patients, 20 were females and 23 males with regular follow-up was conducted on the first week, 3 months after YAG laser capsulotomy.
The mean age of the studied cases is 54.09± 6.63 with range of (43-69) years. Mean ECD is 2657.7±311.5 with range of (2049-3329).
Before the procedure, complete ophthalmic examinations were performed to all patients including the following: history, visual acuity, slit lamp examination, IOP measurement, fundus examination, anterior chamber depth measurement by IOL master and imaging of the corneal endothelium by noncontact specular microscope (NIDEK CEM-530, Ltd., gamagori, Japan) to assess [endothelial cell density (ECD), central corneal thickness (CCT), Coefficient of Variation (CV) and Hexagonal cells (HEX)].
Regular follow-up was conducted on 7th day, and 3rd month with special attention to slit-lamp examination (corneal state), IOP, visual acuity, anterior chamber depth measurement by IOL master and imaging of corneal endothelium by Nidek CEM-530 noncontact specular microscope for assessment of endothelial cell parameters mentioned before.
Endothelial cell count was significantly affected after YAG laser capsulotomy. The mean pre laser endothelial cell count decreased from 2657.7± 311.5 to 2347.9± 289.1 at 3 months after laser (P-value <0.001). The percentage of mean endothelial cell loss after YAG laser capsulotomy was about 11.7% on 3 months postoperatively.
As regard assessment of the endothelial cells during the 3-months follow up period of the study, there was high significant change of ECD values, significant change of CV and HEX values and no significant change in CCT values.