[Repeat argon laser trabeculoplasty in the treatment of primary open-angle glaucoma].

Twenty-one eyes of eighteen patients with clinically uncontrolled open angle glaucoma, 3 to 49 months after the initial laser treatment underwent repeat argon laser trabeculoplasty. Retreatment was successful in eleven eyes (52%). Ten eyes (48%) has marked increases in intraocular pressure, necessitating urgent filtering surgery. Repeat argon laser trabeculoplasty was effective for these patients who show a prolonged response to their initial treatment.