Wavefront-guided photorefractive keratectomy with the VISX platform for myopia.

Abstract

PURPOSE:

To evaluate the safety, efficacy, and clinical outcome of wavefront-guided photorefractive keratectomy (PRK) for the treatment of low to moderate and high myopia and compound myopic astigmatism.

METHODS:

This retrospective study included 174 eyes of 102 patients with low to moderate (-0.125 to <-6.50 diopters [D]) and high (≥-6.50 D) myopia treated with wavefront-guided PRK using the VISX CustomVue S4 IR (Abbott Medical Optics) excimer laser. Eyes were analyzed preoperatively and at 1, 3, 6, and 12 months postoperatively. At 3 months, 174 eyes of 102 patients were evaluated, and at 12 months, 146 eyes of 75 patients were evaluated. No eyes were retreated in the study.

RESULTS:

Mean patient age was 38.3±8.76 years (range: 20 to 66 years), and mean preoperative manifest refraction spherical equivalent (MRSE) was -5.60±2.58 D (range: -0.13 to -10.50 D). At 12 months postoperative, MRSE was -0.16±0.45 D (range: -1.50 to 1.38 D); 96.6% of eyes were within ±1.00 D of intended correction, whereas 81.5% were within ±0.50 D of intended correction. For all eyes, the safety and efficacy indexes were 1.01 and 1.02, respectively.

CONCLUSIONS:

These data support the safety and efficacy for the correction of low to moderate and high myopia and compound myopic astigmatism using wavefront-guided PRK.

• Authors: Simon R Bababeygy, Edward E Manche
• Journal: Journal of refractive surgery (Thorofare, N.J. : 1995) (J Refract Surg) Vol. 27 Issue 3 Pg. 173-80 (Mar 2011) ISSN: 1081-597X [Print] United States
• PMID: 20873706 (Publication Type: Journal Article)
• Copyright: Copyright 2011, SLACK Incorporated.

Topics

• Adult
• Aged
• Astigmatism (physiopathology, surgery)
• Female
• Humans
• Lasers, Excimer (therapeutic use)
• Male
• Middle Aged
• Myopia (physiopathology, surgery)
• Photorefractive Keratectomy
• Refraction, Ocular (physiology)
• Retrospective Studies
• Treatment Outcome
• Visual Acuity (physiology)
• Young Adult