Posters

The effect of topical Cyclopentolate on anterior segment parameters in patients with keratoconus

Poster Details

First Author: G.Kaya TURKEY

Co Author(s):    H. Sımsek                    

Abstract Details

Purpose:

To investigate the effect of cycloplegia on anterior segment structures in keratoconus and forme fruste keratoconus patients using corneal topography.

Setting:

Department of Ophthalmology, Kagithane State Hospital, Istanbul, Turkey

Methods:

In this study 50 patients with keratoconus (Group 1), 50 patients with forme fruste keratoconus (Group 2) and 50 healthy subjects (Group 3) were evaluated prospectively. Flat keratometry (K) value (K1), steep K value (K2), mean K value (Kmean), maximum K value (Kmax), corneal astigmatism value, anterior chamber depth (ACD), symmetry index front, symmetry index back, thinnest corneal thickness, central corneal thickness and corneal volume were measured using Sirius topography before and after cycloplegia.

Results:

There was no difference between the groups with respect to mean age and gender (p >0.05). Mean K1 value was 46.41±3.25 diopters before cycloplegia and 46.36±1.58 after cycloplegia for Group 1 (p>0.05). K1 value didn’t change significantly after cycloplegia for Group 2 and 3 (p>0.05). There was no significant difference in K2 and Kmean values after cycloplegia for all groups (p > 0.05). Kmax value decreased significantly after cycloplegia in Group 1 (p>0.05), but the difference was not significant for Group 2 and 3 (p>0.05). ACD increased significantly after cycloplegia in all groups (p<0.05).

Conclusions:

Cycloplegia causes corneal flattening only in manifest keratoconus patients, leading to an increase in ACD in all groups.

Financial Disclosure:

None