associated systemic and ocular diseases included sickling hemoglobinopathies ( 49 % ) , branch retinal vein obstruction ( 20 % ) , diabetes mellitus ( 9 % ) , sarcoidosis ( 4 % ) , intravenous drug abuse ( 4 % ) , the ocular ischemic syndrome ( 1 % ) , pars planitis ( 1 % ) , coats ' disease ( 1 % ) and retinitis pigmentosa/retinal detachment ( 1 % ) .
C0015392
ocular
C0035305
retinal detachment