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North African people have thinner corneas with normal ORA measurements

Poster Details

First Author: L.Sihem ALGERIA

Co Author(s):    J. Colin   K. Heykel   M. Chahbi        

Abstract Details



Purpose:

Central corneal thickness (CCT) measure is a critical point before refractive surgery. It is well known that surgery cannot be performed under a thickness of 500 microns

Setting:

north africa

Methods:

Pentacam pachymetry was performed in refractive surgery centers on 1615 eyes of patients originating from North Africa, and ocular response analyser (ORA) on 250 eyes, (126 with CCT< 500 microns). With European control group (200 eyes from Bordeaux)

Results:

Most of the patients (70%) were aged from 20 to 35 years old. Thirty eight percent (38%) had a CCT between 450 and 500 microns, 40% between 500 and 550 microns. Patients with Keratoconus were excluded from this study. There was no significant difference between biomechanical properties (CH; CRF) of corneas with CCT less or more than 500 microns

Conclusions:

Publications on this subject being very poor, a study on a larger number of patients has to be conducted in order to confirm the relationship between CCT, ORA and ethnic origin.

Financial Disclosure:

NONE

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