Assessment Of Different Anterior Segment Parameters After Pars Plana Vitrectomy Using Anterior Segment OCT, Specular Microscopy And Pentacam.

Abstract

This is a prospective study carried out on 40 eyes of 40 patients in order to study the changes in anterior segment parameters after pars plana vitrectomy surgery in diabetic patients. There were 19 males and 21 females and the average age was 64.7. 90% of the cases were phakic and 10% only were pseudophakic. All patients were NIDDM and we only included patients who had uneventful pars plana vitrectomy. In the current series, we evaluated ECD and ECL using non-contact Specular microscopy and we evaluated ACA using non contact AS-OCT. We also used non contact Pentacam in order to evaluate ACD, ACV, CCT and Astigmatism. There was no significant statistical difference between pre-operative and post-operative IOP ranging between 7 and 25 mmHg with the highest fluctuation during week 1. Regarding the changes in corneal endothelium, there was a statistically significant decrease in endothelial cell density as ECL steadily increased after the surgery although the surgery included vitrectomy without any combined cataract surgeries. This ECL was not showing any correlation with age nor gender.