Sensibilidad al contraste en H-LASIK [Contrast sensitivity in H-LASIK] (original) (raw)

Abstract

Purpose: To evaluate the optical aberrations and contrast sensitivity after H-LASIK, and also the visual acuity, refractive and keratometric changes. Patients and methods: In this prospective study, 82 eyes of 41 patients (16 men and 25 women) were treated for hyperopia (H-LASIK) between December 2003 and June 2004, and followed for at least 6 months, in order to achieve emmetropy in both eyes. Results: The mean patient age was 35 ± 5.01 years (range 20 to 62 years). Preoperatively, the mean spherical equivalent (SE) was +3.46 ± 1.19 D; postoperatively, it was +0.77 ± 0.67 D. Postoperatively, the mean SE was within ± 0.5 D in 43% of eyes, and within ± 1 D in 66% (predictability). Postoperatively, uncorrected visual acuity (UCVA) was equal or better than preoperative best spectacle corrected visual acuity (BSCVA) in 53% of the eyes (efficacy). Regarding safety, a total of 98% of the eyes had no change in BSCVA at the end of the follow-up period (only 2% of the eyes lost one or more S...

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