vitrectomy was performed on 25 eyes in 21 patients with chronic uveitis from various etiologies. postoperative follow up averaged 22.8 months with visual improvement in 24 of 25 eyes. in this retrospective study, the techniques employed and the beneficial effect of vitrectomy alone or vitrectomy combined with cataract surgery (iensectomy in most cases) on improving vision and decreasing the num...