Posters

FemtoLASIK for correction of oblique and with-the-rule astigmatism: comparison of postoperative visual quality

Poster Details

First Author: B.Kepez Yildiz TURKEY

Co Author(s):    Y. Yildirim   A. Agca   A. Demirok              

Abstract Details

Purpose:

To investigate the visual and reftactive results after femtolasik surgery for correction of oblique and with-the-rule astigmatism and compare the visual quality.

Setting:

Beyoglu Eye Training and Research Hospital, University of Health Sciences, ISTANBUL, TURKEY

Methods:

Medical records of patients who underwent femtolasik surgery between January 2016 and January 2018 in had been retrospectively reviewed. 41 patients who had longer than 3 months follow up time were included. The participants were divided into two groups according to the astigmatism patern. Group A included the patients with-the rule astigmatism and group B included the ones with oblique astigatism >1.5 Diopters(D) Patients’ preoperative and postoperative manifest refraction values, vector analysis results based on Alpins’ method and corneal higher order aberrations were compared.

Results:

Mean age of 25 patients in group A was 28.5 ± 8.2, 28.3 ± 5.1 in group B. (p: 0.915). Preoperative cylindirical power was -3.6 ± 1.2 in group A , -3 ± 1.1 in group B (p:0.433) and regressed to -0.6 ± 0.5 D in group A, -0.6 ±0.52 in group B postoperatively (p: 0.915). Preoperative, postoperative RMS, coma, trefoil, spherical aberration, secondary astigmatism values were similar between groups.. Correction index was 0.71 ±0.47 in group A, 0.66 ± 0.46 in group B.(p:0.683). Success index was 0.17 ±0.4 in group A, 0.22 ± 0.2 in group B (p: 0.684)

Conclusions:

Our results indicate that femtoLASIK surgery is as effective in oblique astigmatism correction as it is in with-the-rule astigmatism based on the refractive results. Furthermore postoperative visual quality is also similar.

Financial Disclosure:

None