Changes in corneal surface aberrations after myopic INTRALASIK and LASEK: Comparison between Technolas and Esiris

Changes in corneal surface aberrations after myopic INTRALASIK and LASEK: Comparison between Technolas and Esiris
Issue online:
02 Oct 2007
To cite this article: P CANADAS SUAREZ, E ARRANZ, C GARCIA-RECIO, M VILLAFRANCA, MA TEUS (2007)
Changes in corneal surface aberrations after myopic INTRALASIK and LASEK: Comparison between Technolas and Esiris
Acta Ophthalmologica Scandinavica 85 (s240), 0Ò0.
doi:10.1111/j.1600-0420.2007.01062_3277.x
Blackwell Synergy

P CANADAS SUAREZ 77Vissum Madrid, Madrid, Spain, E ARRANZ66Vissum Madrid, Madrid, Spain, C GARCIA-RECIO44Vissum Madrid, Madrid, Spain, M VILLAFRANCA55Vissum Madrid, Madrid, Spain, and MA TEUS1,2,31Vissum Madrid, Madrid, Spain2Hospital PrÃncipe de Asturias, Alcal? de Henares, Spain3Universidad de Alcal? de Henares, Alcal» de Henares, Spain

Abstract

Purpose: To compare high order corneal aberrations (HOCA) after myopic INTRALASIK and LASEK, using two different excimer lasers

Methods: This prospective study included 237 eyes of consecutive patients divided into 4 groups; group 1 LASEK with Technolas (LT) 61 eyes, group 2 LASEK with ESIRIS (LE) 73 eyes, group 3 INTRALASIK with Technolas (IT) 61 eyes, group 4 INTRALASIK with Esiris (IE) 42 eyes.

Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA) and manifest refraction were measured, in groups, before and 3 months after surgeries.

The topography data were used to calculate HOCA with 6 mm pupil size, before and 3 months after surgery.

Results: There were no significant differences concerning visual results 3 months after surgery in none of the 4 groups.

However, there was an increase in total RMS and high order in patients treated with Esiris laser. The aberrations with INTRALASIK (p< 0,01) were higher. With Technolas laser, there were significant differences in total RMS, spherical and coma aberrations. In this case, aberrations after LASEK (p< 0,01) were higher.

Conclusions: Our results suggest that both excimer lasers produce an increase in HOCA with equal visual results. Higer HOCA were found after INTRALASIK with Esiris and LASEK with Technolas.

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