Long-term follow-up of hyperopic laser in situ keratomileusis correction using the Star S2 excimer laser.

Abstract

PURPOSE:

To prospectively evaluate the safety, efficacy, predictability, and long-term stability of hyperopic laser in situ keratomileusis (LASIK) using the Star S2 excimer laser (Visx).

SETTING:

Department of Ophthalmology, Stanford University School of Medicine, Stanford, California, USA.

METHODS:

This study evaluated 41 eyes of 27 patients who had LASIK for the correction of spherical hyperopia. Patients were divided into 3 groups based on preoperative cycloplegic refraction: low hyperopia (less than +2.00 diopters [D]), medium hyperopia (+2.00 to +4.00 D), and high hyperopia (more than +4.00 D).

RESULTS:

In all eyes, the mean preoperative spherical equivalent (SE) was +2.53 D (range +0.75 to +5.25 D) and the mean attempted SE was +2.58 D (range +0.75 to +5.25 D). At the last visit (mean 5.29 years), the mean SE was +0.44 D +/- 0.69 (SD) in the low hyperopia group, +0.58 +/- 0.56 D in the medium hyperopia group, and +0.59 +/- 1.18 D in the high hyperopia group. The percentage of eyes within +/-1.00 D of emmetropia was 82.4%, 75.0%, and 66.7%, respectively (68.9% overall). The uncorrected visual acuity was 20/40 or better in 100% of eyes in the low hyperopia group, 91.7% in the medium hyperopia group, and 66.7% in the high hyperopia group (87.8% overall). The hyperopic shift between 1 year and the last visit was +0.18 D, +0.30 D, and +0.55 D, respectively (+0.40 D overall; range -1.25 to +2.63 D).

CONCLUSIONS:

Hyperopic LASIK using the Star S2 excimer laser was safe, effective, and predictable for hyperopia up to +4.10 D (mean of high group). A mild regression of the refractive effect was seen over the 5-year follow-up.

• Authors: Rajen U Desai, Atul Jain, Edward E Manche
• Journal: Journal of cataract and refractive surgery (J Cataract Refract Surg) Vol. 34 Issue 2 Pg. 232-7 (Feb 2008) ISSN: 0886-3350 [Print] United States
• PMID: 18242445 (Publication Type: Journal Article)

Topics

• Corneal Stroma (surgery)
• Female
• Follow-Up Studies
• Humans
• Hyperopia (surgery)
• Intraoperative Complications
• Keratomileusis, Laser In Situ (methods)
• Lasers, Excimer (therapeutic use)
• Male
• Middle Aged
• Prospective Studies
• Refraction, Ocular (physiology)
• Visual Acuity (physiology)