1050 Hz vs 1100 Hz excimer laser platforms for LASIK procedures in low-to-moderate myopia: experimental and clinical study

Session Details

Session Title: Refractive
Session Date/Time: Friday 21/02/2020 | 08:15-10:10
Paper Time: 09:08
Venue: Fes 1.

First Author: A.Doga RUSSIA
Co Author(s): I. Mushkova  A. Karimova  E. Kechin           

Abstract Details

Purpose:

To evaluate and compare experimental and clinical outcomes after LASIK using high-frequency Microscan Visum 1100 Hz (Russia) and SCHWIND AMARIS 1050 Hz (Germany) excimer laser platforms for the myopia treatment

Setting:

S. Fyodorov Eye Microsurgery Federal State Institution

Methods:

In the experimental study, the cornea temperature during the laser ablation was measured with the infrared thermographic camera NEC R300 SR-S (Japan). The depth and smoothness of the ablation zone were measured with the 3D digital microscope KH-8700 (Hirox, Japan). In the clinical study, we observed 84 eyes (84 patients) with low to oderate myopia who had undergone FemtoLASIK procedure using the excimer lasers Microscan Visum 1100 Hz (42 eyes – I group) and SCHWIND AMARIS 1050 Hz (42 eyes – II group). All patients underwent complete refractive examination before and after surgery. Follow-up period was 6 months

Results:

The parameters of maximum cornea temperature, ablation depth and surface smoothness were similar between the MicroscanVisum 1100Hz and SCHWIND AMARIS 1050Hz groups (p>0.05). In the I group the UDVA 20/20 or better was achieved in 93%, in the II group - in 95,2% (p>0,05). In the I group, the gain of one or more lines of the CDVA was 16,7%, in the II group - in 19%. In the I group the predictability of targeted refraction within ±0,5 D was in 90,5%, within ± 1,0 D - in 100%, in the II group - in 93% and 100%, respectively

Conclusions:

LASIK using high-frequency excimer laser platforms is effective, safe and predictable method for low to moderate myopia correction. The results of experimental and clinical study demonstrated that there was no significant difference between the two groups

Financial Disclosure: