J Korean Ophthalmol Soc.  2010 Aug;51(8):1064-1070.

The Preoperative Prognostic Factors for Outcome After LASEK Using the MEL60

• Kim JR
• Kim JS
• Jun EJ
• Kim HS
• Chung SK

Abstract

PURPOSE
To investigate the preoperative clinical factors affecting the refractive outcome after laser-assisted subepithelial keratomileusis (LASEK).
METHODS
This retrospective study was conducted on 58 patients (116 eyes) who underwent bilateral LASEK using the MEL60. The outcome efficacy and predictability of LASEK was examined by analyzing data including age, gender, preoperative uncorrected visual acuity, preoperative refraction (spherical equivalent and cylindrical diopter), central corneal thickness, tear breakup time, and Schirmer test through multiple logistic regression analysis.
RESULTS
The preoperative factor associated with postoperative uncorrected visual acuity was the amount of preoperative spherical equivalent. Greater preoperative spherical equivalent was associated with decreased efficacy. Predictability was also associated with the amount of preoperative spherical equivalent. Greater preoperative spherical equivalent was associated with decreased predictability. The other preoperative factors including sex, age, preoperative uncorrected visual acuity, amount of preoperative cylinder diopter, intraocular pressure, tear breakup time, Schirmer test and central corneal thickness did not show any association with efficacy or predictability.
CONCLUSIONS
The preoperative spherical equivalent was determined as the most important prognosis factor in LASEK, as it is in PRK or LASIK.

Keyword

Factor; LASEK; Refractive outcome

MeSH Terms

Humans
Intraocular Pressure
Keratectomy, Subepithelial, Laser-Assisted
Keratomileusis, Laser In Situ
Logistic Models
Prognosis
Retrospective Studies
Visual Acuity

Reference

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