Belgrade 2018 Meeting Highlights Registration Abstract Submission Exhibition Virtual Exhibition Hotel Information Satellite Programme Visa Letter Application


Search Abstracts by author or title
(results will display both Free Papers & Poster)

Central corneal thickness in east of Iran: a retrospective study in Zahedan

Poster Details

First Author: S.Hoseini IRAN

Co Author(s): M. Aghazadeh Amiri   N. Bageryzadeh                 

Abstract Details


Central corneal thickness (CCT) has an important role in assessment of ocular hypertension and glaucoma as well as refractive surgery. A number of studies found a relationship between ethnicity and CCT therefore we conducted this study to find clinical reference values in our ethnicity.


Zahedan University of Medical Sciences, Alzahra Eye hospital in 2016


In this cross sectional study, non-inferential sampling method used and conducted as an observational-descriptive survey. Cases with corneal disease, clinical evidence of glaucoma, cataract, eyelid abnormalities, elevated IOP (>21 mmHg), a spherical equivalent more severe than ±1.00 D, or a history of intraocular surgery were excluded from participation. We included 252 healthy referral subjects, aged between 20-50 years old, who had no ocular pathology, diabetes and history of contact lens wearing. Subsequently, CCT measured by pentacon (Oculus version 1.3). Data recorded and normalized by Kolmogorov-Smirnov test for normalization. We divided subjects into three age groups. Subsequently, using independent T test and ANOVA, the mean CCT was compared in different age groups.


In this study, 144 males and 108 females were included. They were divided into two ethnic groups (126 subjects in each). The average CCT in the south-east of Iran measured 536.3 μm with a standard deviation of 32,65 μm which significantly lower than other ethnic groups (P <0.0002).


Our findings revealed that the normal range for mean CCT was 539.7-528.08 μm whereas, the normal worldwide reported range was 554-537 μm which is significantly comparable. This variation could be dependent to life style, nutrition and genetic factors which should be confirmed to justify with further studies.

Financial Disclosure:


Back to Poster listing