Frequency of Corneal Endothelial Cell Count in Diabetics Before & After PRP

بيست و يكمين كنگره سراسري چشم پزشكي ايران

23 الي 26 آبان 1390، تهران - ايران

Presentation Type: Speech

Purpose: To evaluate the effect of pan retinal photocoagulation (PRP) on the corneal endothelial cell count.
Methods: A total of 120 eyes of diabetic patients type 2 (20 – 80 years old) referred to Khatam-al-anbia hospital, Mashad were enrolled. PRP performed in 3-4 sessions, with green laser, 200 micron spot size, 150-250 milliwatt and duration of 0.1- 0.2 second. Corneal specular microscopy (device: TOMMEY EM 3000) was performed before, just after, one week and 3 months after last laser session.
Results: 55% of eyes belonged to females and 45% to males. Mean age range was 89.8±9.53 (41-70) years. 53.3% of cases were in PDR and 46.7% in NPDR group. A statistically significant change was found in endothelial cell count, mean cell size, coefficient of variation and hexagonal cells in four stages of research (p = o.oo1).
Conclusion: PRP has a significant impact on number and morphology (mean cell size, coefficient of variation and hexagonal cells) of corneal endothelial cells.