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Corneal biomechanics in pterygium

Session Details

Session Title: Corneal biomechanics

Session Date/Time: Tuesday 08/10/2013 | 08:00-10:30

Paper Time: 10:24

Venue: Elicium 1 (First Floor)

First Author: : S.Goel INDIA

Co Author(s): :    M. Vanathi   V. Kumar   R. Hirawat        

Abstract Details

Purpose:

To compare the biomechanical properties of the cornea between eyes with unilateral primary pterygium with fellow eyes of same patients.

Setting:

Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India

Methods:

Seventy individuals with unilateral primary pterygia were enrolled in this prospective, cross-sectional comparative study. Corneal hysteresis (CH), corneal resistance factor (CRF), corneal compensated intraocular pressure, and Goldmann-related intraocular pressure were measured using the Reichert Ocular Response Analyzer (ORA) for both, eyes with pterygium and fellow eyes taken as control. Both groups were compared using student t-test for independent variables.

Results:

Mean age of the study population was 43.4years +/- 11.5 (SD) and a male: female ratio of 2:1. Waveform scores for all measurements using Reichert’s ORA were comparable and reliable with a mean value of 6.45 (S.D. = 2.07) in the pterygium group and 6.68 (S.D=1.75) in normal control group. Corneal biomechanics, in terms of IOPg (14.1 vs. 14.2 mm Hg, p=0.918), IOPcc (15.9 vs 15.8, p=0.918), CH (9.42 vs. 9.61, p=0.607) and CRF (9.13 vs. 9.34, p=0.593) was also comparable between the pterygium vs control group.

Conclusions:

Corneal biomechanical parameters in eyes with pterygium, as measured by ocular response analyzer, are comparable with normal eyes.

Financial Interest:

NONE