Abstract:

Objective To explore surgical strategies of excimer laser phototherapeutic keratectomy for treatment of band keratopathy. Design Retrospective case series. Participants Eighteen consecutive cases (23 eyes) with band keratopathy in Beijing Xinli Eye Clinic from December 2012 to June 2015. Methods All cases underwent modified PTK or combined abnormal tissue peeling surgeries  for band keratopathy. The causes of disease,  surgical strategies,  epithelial healing,  complications and recurrence rate were analyzed.  The follow-up time was from 3 to 14 months,  and the average was (7.13±3.47) months. Main Outcome Measures Surgical strategies,  epithelial healing,  degeneration tissue removal and recurrence rate. Results The causes of band keratopathy included chronic uveitis in 12 cases (15 eyes),  infectious endophthalmitis in 2 cases (2 eyes),  acute retinal necrosis in 1 case (1 eye),  ocular trauma in 1 case (1 eye),  glaucoma in 1 case (2 eyes),  and unknown reason in 1 case (2 eyes). The removal methods:  13 eyes received modified phototherapeutic keratectomy（PTK),  2 eyes received mechanical abnormal tissue peeling only,  and 8 eyes received combined mechanical abnormal tissue peeling and modified PTK. Epithelial healing time was from 4 to 21 days,  and the median was 5 days. After operation band keratopathy tissue of all eyes was completely removed. Eye irritation symptom disappeared for patients who had eye pain before surgery. Visual acuity of 10 eyes improved.  5 eyes (21.74%) had ≥ 1 degree haze. 3 eyes (13.04%) experienced recurrence. Conclusions Modified excimer laser phototherapeutic keratectomy was minimal invasive effective approach for the treatment of band keratopathy. The reasonable surgical strategy was crucial to ensure the operation effects.（Ophthalmol CHN,  2018, 27：135-140）

Key words: excimer laser phototherapeutic keratectomy, band keratopathy, uveitis, ocular surface disorders