Artigo Revisado por pares

Correction of Presbyopia in Hyperopia With a Center-distance, Paracentral-near Technique Using the Technolas 217z Platform

2008; Slack Incorporated (United States); Volume: 24; Issue: 5 Linguagem: Inglês

10.3928/1081597x-20080501-07

ISSN

1938-2391

Autores

Roberto Pinelli, Dolores Ortiz, Anna Simonetto, Cristian Bacchi, Esperanza Sala, Jorge L. Alió,

Tópico(s)

Glaucoma and retinal disorders

Resumo

Purpose To analyze the results of hyperopic patients treated with a peripheral presbyLASIK algorithm for the correction of presbyopia. Methods The study included 44 eyes of 22 hyperopic patients treated with a peripheral presbyLASIK technique using a Technolas 217z excimer laser. Mean patient age was 56 years (range: 47 to 72 years), mean preoperative spherical equivalent refraction was +1.21±0.77 diopters (D) (range: +0.50 to +4.00 D), and mean spectacle near addition was +1.76±0.42 D (range: +1.00 to +2.75 D). The Peripheral Multifocal LASIK (PML) ablation pattern creates a multifocal corneal profile over a 6.5-mm diameter, performing the distance correction first in a 6-mm optical zone and then near correction in a 6.5-mm zone. Main outcome measures were uncorrected visual acuity (UCVA) and best spectacle-corrected visual acuity (BSCVA) for near and distance, spherical equivalent refraction, contrast sensitivity, and corneal aberrations. Results Six months postoperatively, mean binocular UCVA was 1.06±0.13 for distance and 0.84±0.14 for near. Mean postoperative spherical equivalent refraction was −0.42 D (range: −1.12 to +0.87 D). Two (4.5%) eyes lost 1 line of BSCVA for distance and near vision, and 20 (45%) eyes gained 1 line of distance BSCVA. Contrast sensitivity decreased for 3, 6, 12, and 18 cycles/degree. Corneal aberration analysis showed a slight increase in coma and decrease in spherical aberration. Conclusions The peripheral presbyLASIK technique used in this study is a safe and efficient treatment that may improve functional near vision in presbyopic patients with low and moderate hyperopia (from +0.50 to +3.00 D). [ J Refract Surg. 2008;24:494–500.]

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