Evaluation of contact versus non-contact diode laser cyclophotocoagulation for refractory glaucomas using similar energy settings

Purpose: To compare the efficacy of contact and non‐contact techniques of diode transscleral cyclophotocoagulation (TSCPC) in patients with refractory glaucoma in a prospective randomized manner. Methods: Sixty eyes with refractory glaucoma were randomly treated with either the contact or non‐contact technique of diode TSCPC and followed up for a minimum of 12 months. A standard protocol of 1500 mW for 2 s per spot, with 40 spots over the entire 360° circumference was followed for all eyes in both groups. Results: The reduction of mean baseline intraocular pressure (IOP) from 44.5 ± 7.4 mmHg to 14.8 ± 1.8 mmHg with the contact mode was not significantly different from that in the non‐contact mode of 41.9 ± 8.8 mmHg reduced to 14.5 ± 1.5 mmHg (P = 0.34). The probability of IOP survival (