Posters

Femtosecond laser-assisted intracorneal ring segments implantation for the astigmatism correction in post-PKP patients with keratoconus

Poster Details

First Author: A. Tokmakova RUSSIAN FEDERATION

Co Author(s):    Z. Moroz                    

Abstract Details

Purpose:

To evaluate the clinical outcomes of femtosecond laser-assisted intracorneal ring segments (ICRS) implantation for correcting residual astigmatism in post-PKP patients with keratoconus.

Setting:

The S. Fyodorov Eye Microsurgery Federal State Institution, Moscow

Methods:

The study evaluated 20 eyes with residual astigmatism in post-PKP patients with keratoconus. Preop and postop examination included: refractometry, UCVA and BCVA, corneal topography, pachymetry, confocal microscopy. Patients were examined 1, 3 and 6 month after the surgery.

Results:

The results 3 month after the surgery: the mean UCVA improved from 0,09±0,05 to 0,45±0,21, the mean BCVA from 0,39±0,28 to 0,62±0,14, the mean astigmatism decreased from 7,56±2,45 D to 2,95±1,46 D, the mean maximum K value decreased from 48,77±2,80 D to 44,22±2,61 D, the mean minimum K value was 41,23±2,98 D preoperatively and 41,27±2,61 D postoperatively. At 6 month there was no significant difference in relation to the 3-month outcomes.

Conclusions:

The implantation of ICRS may be an effective procedure for the residual astigmatism correction in post-PKP patients with keratoconus with good visual, refractive and topographic outcomes. Using the femtosecond laser-assistance may provide the ICRS implantation more safe and accurate.

Financial Disclosure:

NONE