SUBLUXATION OF THE LENS: ETIOLOGY AND RESULTS OF TREATMENT

Objective: To evaluate the indications for surgery, visual results and postoperative complications of pars plana vitrectomy (PPV), in patients with retai-ned lens fragments in the vitreous cavity. Methods: 86 eyes from 83 patients who under-went PPV for retained lens fragments at the Hos-pital Central de Asturias between April 1997 and December 2004 were reviewed. The average age was 68 years (12-90 years). Patients with prolife-rative diabetic retinopathy, maculopathy and ina-dequate follow-up examination (less than 3 months) were excluded. The results have been analysed according to the etiology of the subluxa-tion. Results: The average follow-up time was 32.5 months (6-73 months). The most common cause for subluxation of the lenses was cataract surgery and trauma. In 48.15 % an intraocular lens was implan-ted. The average preoperative visual acuity (VA) was 0.06 (logMAR 1.0) and postoperative VA 0.4 (logMAR 0.4). 61.7 % of the eyes had increased preoperative intraocular pressure, whereas only 32 eyes (39.5%) had this postoperatively. The most common intra-operative complications were retinal tears (4) and retinal detachment (1). The most com-mon postoperative complications were retinal detachment (3) and bullous keratopathy (2)