preoperative factors associated with a favorable visual prognosis were a visual acuity of 5/200 or better , the absence of iris neovascularization , a clear crystalline lens or only minimal cataract formation , clear media or only mild vitreous hemorrhage , panretinal photocoagulation of at least one fourth of the retina , and the absence of severe preoperative retinal neovascularization .
C0027686
neovascularization
C0035320
retinal