Posters

Refractive results following phacoemulsification combined with posterior lamellar keratoplasty: femto-DSEK vs DSAEK – a comparative study

Poster Details

First Author: N.Shilova RUSSIA

Co Author(s):    B. Malyugin   O. Antonova                 

Abstract Details

Purpose:

To compare the refractive results following cataract surgery combined with Femtosecond laser assisted graft lenticule preparation for Descemet stripping endothelial keratoplasty (Femto-DSEK), versus cataract surgery combined with microkeratome assisted Descemet stripping automated endothelial keratoplasty (DSAEK)

Setting:

S. Fyodorov Eye Microsurgery State Institution, Moscow, Russia

Methods:

Retrospective comparative study. Group A: 10 patients who underwent cataract surgery combined with Femto-DSEK. Group B: 13 patients who underwent cataract surgery combined with DSAEK. Outcomes measures were preoperative and postoperative BSCVA, pre-operative predicted spherical equivalent (SE) refractive target and actual postoperative SE. Follow up period: 1 year following surgery.

Results:

In group A, median pre-operative predicted SE and median actual postoperative SE did not significantly differ and were -1.46 D(IQR,-1.62 to-1.07D) and -1.13D(IQR, -2.16 to 0.0D),respectively(P=0.445). In group B, median pre-operative predicted SE and median actual postoperative SE did differ significantly and were -1.6D(IQR, -2.21 to -1.21D) and -0.75D(IQR, -1.25 to 0.25D), respectively (P<0.003). Median postoperative hyperopic shift in group A was 0.21D(IQR, -0.41 to1.08D) and in group B was 1.17D(IQR,1.0 to 1.83D), (P=0.032). Median postoperative BSCVA values did not differ significantly between groups A and B 0.45 (IQR, 0.4 to 0.5) logMAR and 0.4 (IQR,0.3 to 0.4) logMAR,(P=0.178).

Conclusions:

cataract surgery combined with Femto-DSEK provides comparable visual outcomes to cataract surgery combined with microkeratome assisted DSAEK and results in less hyperopic shift compared to cataract surgery combined with DSAEK. This may be caused due the more planar shape of the Femto-DSEK lenticules compared to the concave configuration of the DSAEK lenticules. This finding has a clinical importance for choosing the proper power of an intraocular lens prior to the aforementioned surgeries.

Financial Disclosure:

None