PURPOSE To assess the effectiveness, safety, and comfort of transepithelial photorefractive keratectomy (PRK) using the Amaris laser platform. SETTING Ophthalmic Consultants of Beirut, Jal-El-Dib, Metn, Lebanon. DESIGN Comparative case series. METHODS Myopic eyes with or without astigmatism were treated by transepithelial PRK (study group) and compared with variable-adjusted eyes treated ...

AIMS/BACKGROUND Keratoconus is generally held to be an absolute contraindication for photorefractive keratectomy (PRK). Corneas with inferior steepening on corneal topography are widely thought to have subclinical keratoconus. We were not convinced that this is always the case, as there seems to be a group of patients with a stable inferior steepening pattern on topography who show no other cha...

PURPOSE To compare quality of life (QOL) in myopic patients who underwent photorefractive keratectomy (PRK) with that of myopic spectacle or contact lens users. METHODS This observational comparative study was performed on 102 low to moderate myopic patients who had undergone PRK at least 6 months ago and 106 myopic spectacle or contact lens wearers. Vision related QOL and its correlation wit...

AIMS To further understand the morphological and functional recovery of corneal epithelium following excimer laser photorefractive keratectomy (PRK). METHODS The right eyes (group 1) of 15 male, New Zealand white rabbits weighing 2-3 kg underwent PRK. The left eye of each rabbit (group 2) underwent simple mechanical de-epithelialisation and were examined as treated controls. Both eyes of anot...

PURPOSE To compare the safety and efficacy of wavefront-guided laser in situ keratomileusis (LASIK) vs photorefractive keratectomy (PRK) in a prospective randomized clinical trial. METHODS A cohort of 68 eyes of 34 patients with -0.75 to -8.13 diopters (D) of myopia (spherical equivalent) were randomized to receive either wavefront-guided PRK or LASIK in the fellow eye using the VISX CustomVu...

In this presentation “A comparative study on visual and optical performance of Akreos AO and Kontur AB IOLs, after phacoemulsification cataract surgery”, Gharaee H et al have evaluated the visual performances by comparing two aspheric intraocular lenses (IOL). They indicate that with age positive spherical aberration increases, and consequently mesopic contrast sensitivity decreases and in such...

purpose: to report the clinical, confocal scan, and histopathologic features of bilateral nocardia keratitis following photorefractive keratectomy (prk). case report: a 23-year-old girl underwent simultaneous bilateral prk for myopia. on the third postoperative day, dense central infiltrates mainly involving the anterior stroma were noticed in both eyes. clinical and confocal scan features were...

PURPOSE To analyze the early results of a new device measuring ocular biomechanics after corneal refractive surgery. PATIENTS AND METHODS Thirty nine refractive surgery patients were enrolled in the study (age: 32.6±9.9 years). Laser in situ keratomileusis (LASIK) was performed on 52 eyes of 26 patients and photorefractive keratectomy (PRK) was done on 26 eyes of 13 patients. Ten device-speci...

OBJECTIVE To determine the long-term changes in the corneal endothelium after laser in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK). METHODS Twenty-nine eyes (16 patients) received myopic LASIK or PRK, with intended correction to emmetropia. Central endothelial photographs were taken before and 9 years after surgery and were analyzed by the same masked investigator after ...

PURPOSE To present a case of photorefractive keratectomy (PRK) after late traumatic LASIK flap loss. METHODS The initial LASIK procedure was performed in 2003 with a Moria M2 microkeratome and NIDEK EC-5000 excimer laser using a 5.0/9.0-mm aspheric ablation pattern, resulting in 20/20(+) uncorrected distance visual acuity (UDVA) and plano refraction. Traumatic flap loss of the right eye occur...