Photoastigmatic refractive keratectomy for correction of astigmatism after keratoplasty.
Copyright policy )Photoastigmatic refractive keratectomy for correction of astigmatism after keratoplasty.
The efficacy and safety of photoastigmatic refractive keratectomy (PARK) to correct astigmatism after keratoplasty was evaluated.PARK was performed using the Nidek EC-5000 excimer laser in 10 eyes of 10 patients (mean age: 49.5 +/- 11.5 years) with astigmatism after keratoplasty.The refractive cylinder decreased from 5.80 to 3.20 D, whereas at 6 months, topographic cylinder decreased from 7.40 to 5.90 D post-operatively. Five eyes (50%) had uncorrected visual acuity of 20/60 or better at 3 months. Stromal haze increased from 3 to 6 months postoperatively, and at 6 months, 5 eyes (50%) had a haze score of greater than or equal to 2.0.PARK is a moderately effective method of correcting astigmatism after keratoplasty.
- L V Prasad Eye Institute India
Reoperation, Corneal Stroma, Visual Acuity, Astigmatism, Corneal Topography, Middle Aged, Refraction, Ocular, Photorefractive Keratectomy, Corneal Opacity, Eyeglasses, Treatment Outcome, Humans, Lasers, Excimer, Keratoplasty, Penetrating, Follow-Up Studies
Reoperation, Corneal Stroma, Visual Acuity, Astigmatism, Corneal Topography, Middle Aged, Refraction, Ocular, Photorefractive Keratectomy, Corneal Opacity, Eyeglasses, Treatment Outcome, Humans, Lasers, Excimer, Keratoplasty, Penetrating, Follow-Up Studies
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