Efficacy and safety of preservative-free anti-glaucomatous eye drops (dorzolamide/timolol) in ocular hypertension and/or glaucoma.

Purpose: This study evaluated the efficacy, safety, and tolerability of a single-dose, preservative-free (PF) Dorzolamide/Timolol combination (Twinzol-SDU).

Methods: A 3-month single-arm, multicenter, prospective cohort study was conducted in Egypt between January 2021 and October 2022 on previously diagnosed and controlled patients with ocular hypertension and/or glaucoma. Efficacy was assessed using the change in intraocular pressure (IOP) after 6 and 12 weeks.

Evaluation of collagen crosslinking in keratoconus eyes with Kera intracorneal ring implantation.

Purpose: To assess the outcome of collagen crosslinking (CXL) in keratoconus eyes after implantation of Kera intracorneal ring segments.

Patients And Methods: Twenty-one eyes of 13 patients with mild to moderate degree of keratoconus were included in this study. All eyes had uneventful surgery for Kera intracorneal ring segment implantation followed by collagen CXL treatment after at least 3 months of the implantation.