ptk (phototherapeutic keratectomy) is the use of laser in corneal diseases. we can replace ptk for many other invasive procedures. the objective of this study is the assessment of this procedure in several cases in our practice. this investigation was a retrospective study, which was conducted based on comparison of 11 eyes with corneal eschars, induced by recurrent corneal erosions, pterygium ...

PURPOSE To determine the ten-year visual results and outcomes of excimer laser phototherapeutic keratectomy (PTK) for recurrent corneal erosions. METHODS Twenty-six eyes of 23 patients with recurrent corneal erosions were treated by PTK from 1996 to 2000 at the Goiania Eye Institute, Brazil. All eyes had failed to respond to conventional therapy. Data regarding preoperative and postoperative ...

A series of recurrent corneal erosions secondary to map-dot-fingerprint dystrophy is presented. Erosions were closely related to the Hudson-Stahli line, and this may be a factor in pathogenesis. Traumatic abrasions did not demonstrate such localisation, evidence that trauma is not a primary cause. A trial of management with therapeutic contact lenses versus topical medication was performed. The...

A male medical student, aged 22, had bilateral keratoconus which had been successfully treated by Mr. H. Treissman with contact lenses for 7 years. Recently the left eye had become intolerant to the contact glass with recurrent corneal ulceration and scar formation. The patient was referred to Mr. B. W. Rycroft for consideration of keratoplasty. History.-There were no points of relevant ophthal...

Methods PTK was performed in 73 eyes of 64 patients. Data regarding the demography, indications for PTK, ablation depth, optical zone, keratometry. BCL removal , symptomatic relief, preand postoperative best spectacle-corrected visual acuity (BSCVA), spherical equivalent changes, recurrence and complications were analyzed. The indications for PTK in our study were classified into two categories...