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Excimer laser photorefractive keratectomy

Survey of Ophthalmology, 1995
Excimer laser photorefractive keratectomy has been used for the correction of myopia, hyperopia and astigmatism. This laser removes tissue through a process termed photoablative decomposition, in which incident photon energy is sufficient to break molecular bonds.
Theo G Seiler, T Seiler, P J Mcdonnell
exaly   +3 more sources

Photorefractive Keratectomy and Cataract

Survey of Ophthalmology, 1997
Fifty male albino rabbits were studied. Ten animals served as controls. Forty animals were prepared to receive photorefractive keratectomy (PRK), including anesthesia, scraping of the corneal epithelial cells, etc. Twenty of these animals then received PRK with energy delivered by excimer laser (pulse rate = 20 Hz, fluence 250 mJ/cm2; number of pulses =
COSTAGLIOLA, Ciro   +4 more
openaire   +5 more sources

Pharmacotherapy of photorefractive keratectomy

Journal of Cataract and Refractive Surgery, 1996
To compare the pharmacotherapeutic practices of high-volume photorefractive keratectomy (PRK) surgeons with suggested practices gleaned from the current literature.York Finch Eye Associates, Toronto, Canada.Seventy-five ophthalmic surgeons believed by the authors to do a high-volume of PRKs were surveyed over the summer of 1994 about their ...
S A, Arshinoff, M D, Mills, S, Haber
openaire   +2 more sources

Optics for photorefractive keratectomy

Journal of Cataract and Refractive Surgery, 1993
Matrix calculations are applied to Gaussian optics in the study of myopic correction by photorefractive keratectomy. The Colliac matrix formula determines the postoperative anterior curvature radius of the treated cornea. It also calculates the maximal depth of the removed corneal tissue and the ablation zone diameter needed to achieve emmetropia.
J P, Colliac, H J, Shammas
openaire   +2 more sources

Photorefractive keratectomy in children

Journal of Cataract and Refractive Surgery, 2002
To evaluate photorefractive keratectomy (PRK) in pediatric patients who fail traditional methods of treatment for myopic anisometropic amblyopia and high myopia.Nonhospital surgical facility with follow-up in a hospital clinic setting.Photorefractive keratectomy was performed in 40 eyes of 27 patients.
William F, Astle   +5 more
openaire   +2 more sources

Simultaneous and Sequential Photorefractive Keratectomy

Journal of Refractive Surgery, 1995
ABSTRACT The purpose of this study was to show the safety, effectiveness, and predictability of simultaneous bilateral as compared to sequential unilateral photorefractive keratectomy in 273 normally sighted myopic eyes. An excimer laser with a fluence of 180 mj/cm p 2 at a frequency of 10 Hz was used at ...
Bahçecio?lu, Halil Ibrahim   +5 more
openaire   +3 more sources

Thermal Consequences of Photorefractive Keratectomy

Cornea, 2001
Photorefractive keratectomy (PRK) is still a widely used method for the correction of refractive error despite the advent of laser in situ keratomileusis (LASIK). However, both procedures are associated with significant side effects such as corneal haze and regression.
Maldonado-Codina, Carole   +2 more
openaire   +2 more sources

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