phototherapeutic keratectomy


phototherapeutic keratectomy (PTK),

ablation of diseased corneal tissue using an excimer laser.

pho·to·ther·a·peu·tic ker·a·tec·to·my

(PTK) (fō'tō-thār'ă-pyū'tik ker'ă-tek'tŏ-mē) Ablation of diseased corneal tissue using an excimer laser