By using a continuous wave argon laser, successful iridectomy was achieved in 41 out of 51 phakic eyes selected for the procedure. Three of the successful procedures required multiple sittings. The procedure was performed on an out-patient basis under topical anaesthesia, usually required less than one-half hour for completion with a negligible complication rate. Therefore, where available ArLI appears to present a viable alternative to surgical iridectomy for the definitive treatment of angle closure glaucoma.