Topography adjustment of treated cylinder vs using the standard clinical refraction (SCR) in myopic topo-guided LASIK

Session Details

Session Title: Refractive
Session Date/Time: Friday 15/02/2019 | 08:30-10:00
Paper Time: 08:48
Venue: Room MC3

First Author: F.Tzani GREECE
Co Author(s): A. Kanellopoulos                 

Abstract Details

Purpose:

To compare 50% and 100% topography-modified refraction (TMR) to the SCR in myopic LASIK.

Setting:

LaserVision gr Clinical and Research Eye Institute, Athens, Greece

Methods:

This prospective, randomized contralateral-eye study included 260 eyes of 130 patients: One eye of each patient was randomized to be treated with TMR either 50% (group A) or 100% (group B), the contralateral-eye (group C) treated with the SCR. The 3 months peri-operative visual performance and refractive data were compared for all three groups.

Results:

Mean values: UDVA: group A was 20/18, group B 20/16 and 20/20 for group C; CDVA: 20/16.75, 20/13.5 and 20/20 respectively; 1 line of vision gained: 41.7%, 55.6% and 27.8%; 2 lines of vision gained was 8.7%, 11.1% and 5.6% also respectively. In-group A, 17.7% of eyes had over −0.50 diopters of residual refractive astigmatism, 11.7% in group B (P<.01) and to 27.8% in group C(P<.01). All values were statistically different when group A was compared to group B.

Conclusions:

TMR may offer superior visual outcomes when compared to SCR in myopic topo-guided LASIK. 100% TMR appears to be superior to partial TMR adjustment of the SCR.

Financial Disclosure:

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