Long-term stability of LASEK performed to correct myopia in thin corneas.

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Long-term stability of LASEK performed to correct myopia in thin corneas.
Issue online:
02 Oct 2007
To cite this article: MA TEUS, L DE BENITO-LLOPIS, M ALVAREZ, J TORRES, N GIL-CIGANDA (2007)
Long-term stability of LASEK performed to correct myopia in thin corneas.
Acta Ophthalmologica Scandinavica 85 (s240), 0Ò0.
doi:10.1111/j.1600-0420.2007.01063_3269.x
Blackwell Synergy

MA TEUS 1,21Vissum Madrid, Madrid, Spain2Universidad de Alcal?, Madrid, Spain, L DE BENITO-LLOPIS33Vissum Madrid, Madrid, Spain, M ALVAREZ44Vissum Madrid, Madrid, Spain, J TORRES55Vissum Madrid, Madrid, Spain, and N GIL-CIGANDA66Vissum Madrid, Madrid, Spain

Abstract

Purpose: To study the stability of the refraction 15 months after myopic laser-assisted subepithelial keratectomy (LASEK) performed in thin corneas.

Methods: We performed a retrospective study of 92 consecutive eyes that had undergone LASEK to correct their myopia and that had a preoperative corneal thickness <500 &#956;m. Intraoperative mitomycin-C (MMC) was applied when the ablation depth was &#8805;50&#956;m. We compared the residual spherical refraction between the 3-month and 15-month examinations, in order to detect a possible myopic change that would suggest secondary corneal ectasia.

Results: Preoperative corneal thickness was 483.9 ± 14.0 &#956;m (range 435 to 500). Preoperative spherical refraction was -3.60±2.40D. Preoperative cylinder was -0.90±1.10D. The residual sphere was +0.18±0.50D (range -1.25 to +2.00D) 3 months postoperatively and +0.13±0.7 (range -1.75 to +2.00D) 15 months after surgery (P>0.05). Uncorrected visual acuity was 0.97±0.2 and 1.03±0.2, respectively (P>0.05). Topography showed no signs of ectasia in any case.

Conclusions: Myopic LASEK performed on thin corneas seems to obtain long-term stable refractive results, with no sign of ectasia 3 and 15 months postoperatively.

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