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Photorefractive Keratectomy

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1041. Intracorneal ring segments for iatrogenic keratectasia after laser in situ keratomileusis or photorefractive keratectomy. (Abstract)

Intracorneal ring segments for iatrogenic keratectasia after laser in situ keratomileusis or photorefractive keratectomy. Intrastromal corneal ring segments (Intacs) were inserted in four eyes with iatrogenic keratectasia, 12 to 44 months after laser in situ keratomileusis (LASIK) in two patients and photorefractive keratectomy (PRK) in two patients, in order to avoid penetrating keratoplasty and to improve quality of vision.A modified asymmetrical Intacs micro-thin prescription inserts

2002 Journal of Refractive Surgery

1042. Photorefractive keratectomy using the meditec MEL 70 G-scan laser for hyperopia and hyperopic astigmatism. (Abstract)

Photorefractive keratectomy using the meditec MEL 70 G-scan laser for hyperopia and hyperopic astigmatism. To evaluate the results of photorefractive keratectomy (PRK) using Gaussian flying spot technology in the treatment of hyperopia and hyperopic astigmatism.Two hundred eyes were evaluated with 12-month follow-up. An Asclepion-Meditec MEL 70 G-scan flying spot ArF excimer laser with a Gaussian scanner was used (6.0-mm treatment zone and 9.0-mm transition zone). Eyes were divided into four

2002 Journal of Refractive Surgery

1043. Wavefront-guided photorefractive keratectomy for myopia and myopic astigmatism. (Abstract)

Wavefront-guided photorefractive keratectomy for myopia and myopic astigmatism. To evaluate the results of wavefront-supported customized ablation (WASCA) in eyes treated with photorefractive keratectomy (PRK) to correct spherical myopia and myopic astigmatism.One-hundred fifty eyes of 104 patients (mean age 33.4 +/- 4.4 years) were included in the study. An Asclepion Shack-Hartmann wavefront aberrometer was used to assess lower and higher order refractive aberrations of eyes, and customized

2002 Journal of Refractive Surgery

1044. First results with wavefront-guided photorefractive keratectomy for hyperopia. (Abstract)

First results with wavefront-guided photorefractive keratectomy for hyperopia. To compare the results of traditional laser photoablation and wavefront-supported customized ablation (WASCA) in hyperopic photorefractive keratectomy (H-PRK).This was a prospective study, comparing two treatment groups, each comprising 40 eyes of 20 patients. Wavefront aberrations were examined using a Shack-Hartmann aberrometer. Preoperative refraction was similar in the two groups; in the traditional H-PRK group

2002 Journal of Refractive Surgery

1045. Visual performance with night vision goggles after photorefractive keratectomy for myopia. (Abstract)

Visual performance with night vision goggles after photorefractive keratectomy for myopia. To evaluate visual performance and resolution through night vision goggles (NVG) before and after photorefractive keratectomy (PRK).Nonrandomized, comparative (self-controlled) trial.Nineteen patients (38 eyes) of active-duty US Army Special Forces soldiers.PRK for myopia and astigmatism.Visual acuity with best optical correction was measured preoperatively and postoperatively (3 months) using acuity

2003 Ophthalmology

1046. Photorefractive keratectomy with aspheric profile of ablation versus conventional photorefractive keratectomy for myopia correction: six-month controlled clinical trial. (Abstract)

Photorefractive keratectomy with aspheric profile of ablation versus conventional photorefractive keratectomy for myopia correction: six-month controlled clinical trial. To analyze ocular wavefront error and corneal asphericity (Q) in patients treated with aspheric profile photorefractive keratectomy (PRK) compared with patients having conventional PRK to correct myopia and myopic astigmatism and to evaluate the effect of postoperative corneal shape on visual performance.Eye Clinic, University

2006 Journal of cataract and refractive surgery Controlled trial quality: uncertain

1047. Laser-assisted subepithelial keratectomy and photorefractive keratectomy for the correction of hyperopia. Results of a 2-year follow-up. (Abstract)

Laser-assisted subepithelial keratectomy and photorefractive keratectomy for the correction of hyperopia. Results of a 2-year follow-up. To evaluate and compare the efficacy, safety, predictability, and stability of laser-assisted subepithelial keratectomy (LASEK) and photorefractive keratectomy (PRK) for low to moderate hyperopia with a 2-year follow-up.Department of Ophthalmology, Masaryk University Hospital, Brno, Czech Republic.This prospective comparative single-surgeon study included 216 (...) refraction. Peripheral corneal haze scores at 3 to 9 months and pain scores at 1 to 3 days were significantly lower in the LASEK group than in the PRK group.Laser-assisted subepithelial keratectomy for hyperopia up to +5.00 D provided good visual and refractive results. It significantly reduced postoperative pain, grade of peripheral ring-shaped corneal haze, and regression of hyperopia. Hyperopic LASEK provided quicker visual recovery and achieved better efficacy, predictability, and refractive

2003 Journal of cataract and refractive surgery Controlled trial quality: uncertain

1048. Phototherapeutic keratectomy with mitomycin C for corneal haze following photorefractive keratectomy for myopia. (Abstract)

Phototherapeutic keratectomy with mitomycin C for corneal haze following photorefractive keratectomy for myopia. To evaluate the safety and efficacy of phototherapeutic keratectomy (PTK) with single application of mitomycin C for patients with severe corneal haze following photorefractive keratectomy (PRK) for high myopia.Eight eyes of seven patients were treated with PTK and intraoperative topical application of mitomycin C (0.02%) for severe corneal haze (grade 3) following PRK for myopia.All

2003 Journal of Refractive Surgery

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