purpose : to evaluate the effect of topical diclofenac sodium 0.1% on the corneal epithelial healing after photorefractive keratectomy (prk) methods : in this prospective randomized double blind clinical trial, prk was performed on 82 patients. thirty-three cases of them receiving topical diclofenac four times per day after surgical procedure and 45 patients did not receive this medication as a...

determinants of early onset haze were retrospectively explored in patients who had been undergone laser-assisted sub-epithelial keratectomy (lasek) in a private eye clinic. the technique included creating an epithelial flap following 20 seconds exposure to 20% alcohol. ‘optimized’ ablation profile was used by allegretto laser (wavelight technologie). following repositioning of the flap, a singl...

The objective is to evaluate the effects of phototherapeutic keratectomy (PTK) in bullous keratopathy patients. Phototherapeutic keratectomy was performed in a pseudophakic patient with corneal decompensation after lens extraction, with the excimer laser Nidek EC 5000 after manual corneal epithelial debridement. There was no pain after fifteen days the laser application and during the eight mon...

purpose: to evaluate the corneal endothelial cell density and polymegathism one year after laser assisted keratomileusis using mitomycin c. methods: one hundred and three eyes from 52 patients who underwent laser assisted sub-epithelial keratomileusis using mitomycin c 0.02% for 30 seconds entered this study. corneal endothelial cells were evaluated using specular microscopy before and one year...

In isolated rabbit corneas that had undergone lamellar keratectomy or myopic keratomileusis, the stimulation of chloride transport by 10(-5) M epinephrine was completely inhibited at 1 week following surgery. At 28 days following surgery, both groups responded to 10(-7) M epinephrine. The response to 10(-5) M amphotericin B was normal both at 1 week and at 28 days following surgery. We conclude...

PURPOSE To determine the distribution of type XVIII collagen in mouse ocular tissues and to investigate the expression of type XVIII collagen during healing of corneal incisions and keratectomy wounds. METHODS Immunohistochemical analysis of type XVIII collagen was performed in mouse ocular tissue, with polyclonal antibodies to the hinge domain. For wound-healing experiments, excimer laser ke...

This study describes a case of nodular epithelial hyperplasia and stromal alterations in a patient with keratoconus who was submitted to topography-guided photorefractive keratectomy (PRK) followed by corneal collagen cross-linking. Debridement of the epithelial nodule was performed. After a 2-year followup, a new topography-guided PRK was indicated.