Posters

The evaluation of the effects of toric soft contact lenses on visual acuity in patients with high astigmatism

Poster Details

First Author: K.Gül Ölke TURKEY

Co Author(s):    I. Harbiyeli   E. Erdem   M. Yagmur              

Abstract Details

Purpose:

The aim of the study is to evaluate visual performance of toric soft contact lenses (CL) in patients with high astigmatism.

Setting:

Cukurova University, School of Medicine, Department of Ophthalmology, Adana, Turkey

Methods:

The medical records of 35 patients (62 eyes) with high astigmatism who fitted with toric soft contact lenses in Cukurova University Department of Ophthalmology between June 2014 - October 2017 were retrospectively reviewed. The age, gender, uncorrected visual acuity (UVA), refractive values, keratometric values measured with corneal topography (CSO Sirius), astigmatic patterns, corrected visual acuity with spectacles (S-CVA) and contact lenses (CL-CVA), subjective vision quality and overall comfort with CL were recorded. Also, fitted lenses’ brands, materials, parameters, orientation stability and follow-up time were noted. Statistically, p <0.05 was considered significant.

Results:

Eleven eyes with keratoconus (17 %) , 27 eyes with regular astigmatism (43 %) and 24 eyes with irregular astigmatism (38 %) were fitted with toric soft CL. Mean age was 24.97 years; the mean follow-up period was 21.03 months. Mean cylindirical manifest refraction was -4.50D . CL-CVA was significantly better than the S-CVA and UVA in all eyes (p<0.001). S-CVA were found significantly better than UVA in eyes with regular and irregular astigmatism (p<0.05). However, in keratoconic eyes , there was no significant difference between UVA and S-CVA, whether there was significant increase in visual acuity with CL (p<0.05).

Conclusions:

These lenses may provide better visual acuity than spectacle correction in eyes with high astigmatism, especially in patients with keratoconus. These results indicate that fitting of toric soft CL may be a good alternative in patients with high astigmatism.

Financial Disclosure:

None