Efficacy and safety of a steel drainage device implanted under a scleral flap.

Objective: To evaluate the efficacy and safety of a stainless steel miniature glaucoma drainage device (Ex-PRESS X200) implanted under a scleral flap for the surgical treatment of primary open-angle glaucoma (POAG).

Study Design: Clinical, prospective, noncomparative, nonrandomized study. The efficacy and safety were evaluated on the full sample, with a minimum follow-up of 12 months (maximum 24, mean 18).

A 14-year follow-up of photorefractive keratectomy.

Purpose: To evaluate the long-term outcome of myopic photorefractive keratectomy (PRK).

Methods: This prospective study included 31 patients (49 eyes) who underwent PRK between 1991 and 1993. A Summit UV200 excimer laser was used.

Retinal blood flow autoregulation after dynamic exercise in healthy young subjects.

Purpose: To evaluate the retinal blood flow before and after the increase in systemic blood pressure to assess the autoregulation in healthy young subjects.

Methods: Twenty eyes of 20 healthy volunteers were examined. The retinal blood flow was assessed by a Heidelberg retina flowmeter (HRF), while the systemic pressure was assessed by a portable electronic sphygmomanometer.

Corneal thickness and visual field damage in glaucoma patients.

Purpose: To verify whether there was a significant correlation between central corneal thickness (CCT) and visual field damage in patients with primary open angle glaucoma (POAG).

Methods: A total of 99 eyes with POAG were consecutively recruited. Patients were classified as glaucomatous based on visual field and optic nerve head damage.