Posters

Effect of posterior corneal surface irregularities on vision after Descemet's membrane endothelial keratoplasty (DMEK)

Poster Details

First Author: A.Srirampur INDIA

Co Author(s):    K. Katta                    

Abstract Details

Purpose:

To evaluate the effect of posterior corneal surface irregularities on vision after Descemet's Membrane Endothelial Keratoplasty (DMEK).

Setting:

Anand Eye Institute, Hyderabad, India.

Methods:

Corneal data was acquired using a rotating Scheimpflug camera before and 1 month and 3 months after DMEK. Posterior corneal elevation data were decomposed into a set of Zernike polynomials up to the 8th order within a 4.0 mm diameter region. Total higher-order root mean square (HO-RMS) and RMS from the 3rd to 8th order were calculated. The effects of posterior surface irregularity on visual acuity were evaluated.

Results:

There were no significant differences in posterior surface HO-RMS between preoperative and 1 month and 3 months.

Conclusions:

Postoperative BCVA correlated with irregularity of the anterior surface but not the posterior surface. In addition to corneal transparency, regularity of the anterior surface is an important factor in visual acuity after DMEK.

Financial Disclosure:

None