Can use of topography-modified refraction (TMR) in topo-guided LASIK (tgL) reduce residual refractive cylinder (RRC)? Comparing with-the-rule (WR) to against-the-rule (AR) to oblique cylinder (OC)

Session Details

Session Title: Presented Poster Session: Keratorefractive Surgery Results I

Venue: Poster Village: Pod 2

First Author: : A.Kanellopoulos GREECE

Co Author(s): :    F. Xhani                       

Abstract Details

Purpose:

Comparison of TMR potential benefit in  astigmatic types corrected

Setting:

LaserVision gr Clinical and Research Eye Institute, Athens, Greece

Methods:

200 myopic WFO LASIK cases were retrospectively evaluated for: UDVA, CDVA, Refractive error (RE), topography, tomography. Use of pre-op data available generated virtual tgL plan with TMR cylinder amount and axis adjustment instead of the actual WFO used, and correlated to current refractive and topographic data available. Comparison between the 3 groups was made.

Results:

WR:171, AR: 10, OC: 19. Overall; UDVA: 20/22, CDVA 20/20, RE in Diopters: -0.35 sphere and  -0.75 Cylinder. >-0.25 D RRC: WR: 80%, OC: 40%, AR: 25%.  TMR would have reduced RRC WR>AR>OC.

Conclusions:

TMR in tgL may offer improved outcomes through accurate cylinder correction in all types of corneal astigmatism

Financial Disclosure:

None