الفهرس 
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Abstract
This study was carried-out on 50 patient (45-65) who countered posterior capsule rupture during cataract extraction by phacoemulsification. The Patients with preexisting corneal disease , scar ,previous trauma or surgery were excluded
Pre-and post-operative evaluation of corneal endothelial cell change after posterior capsule rupture were evaluated by quantitative morphometric analysis using specular microscope.
The results show that the best corrected visual acuity (BCVA) improved post- 1month (.31±.09) .By the third month with stabilization of Corneal state, the BCVA show more improvement (.57±.17) The % cases that achieved V/A of 6/12 or better were 90%.
Our results regarding the central corneal thickness , the preoperative thickness was (545.6±22.5) .The study show an increased corneal thickness ( 561.02±22.39) which is statistically significant at one month, and returned to near normal level by 3months ( 552.6±22.9).
The Endothelial cell density preoperative (2746±310) had markedly affected after PCR with %of loss ranging from (7.2% to 22.78%) one month post-operative. The cell density continued to decline but with slower rate after 3 months to reach an averge of (2332± 301).
The Endothelial cell loss %was higher in cases with vitreous loss (19.82 ±1.88%) than without (12 ±1.08%).
Also cases that had PCR with corneal oedema show more endothelial loss (17%) than PCR without (10%)
The cases with PCR that were managed by Continue phaco with low I/A, their ECL% was (10.8%) much less than other management procedures clearing the benefit of early recognition of PCR and proper decision of better management.
The higher levels of ECL% 3 months post-operative were in patients with excessive vitreous loss or dropped nucleus which Left aphakic then Pars plana vitrectomy were performed (23.01%), followed by PPV and IOL implantation in the same operation (18.71%).
Our results regarding HEX show statisticaly significant decrease post-operative one month (49%) which continue to decrease at the 3month (47%).
The co-officient of variation show a significant increase at post 1month then decrease at 3month (38%,37%) respectively , in relation to pre-operative value (36%)
We also noticed that cornea with low CV% and high HEX% are more liable to afford the surgical distress and show faster recovery.