الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
This study was done to detect the correlation between optical coherence tomography and fluorescein angiography in assessment of macular edema secondary to retinal vein occlusion and its relation to visual acuity. The present study included 58 eyes of 54 patients and 20 eyes of 10 healthy individuals . They were divided into 3 groups: Group ?: It included 29 eyes of 25 patients; suffering from CRVO. Group ?: It included 29 eyes of 29 patients; suffering from BRVO. Group ?: It included 20 eyes of 10 individuals not suffering from ocular or systemic diseases. Every patient was subjected to complete ophthalmological examination, fluorescein angiography and optical coherence tomography. The role of fluorescein angiography is very important in assessment of cases of retinal vein occlusion. It can determine the cause of visual deterioration and is capable of detecting any vascular changes, macular edema and ischemia which can explain diminution of vision in absence of leakage of the dye at the macula FA detected macular edema in 29.31% of cases and ischemic changes in 25.86 % of cases. Optical coherence tomography is a useful adjunctive to FA. It is able to detect the increase in the retinal thickness at the fovea in absence of leakage of the dye at the macula which is called non angiographic OCT detectable macular edema and represented 63.76% of cases; the increase in retinal thickness at fovea can explain diminution of vision