▁in ▁tennis ▁Category : Univers ia de ▁gold ▁medal ists ▁for ▁Chinese ▁Tai pe i ▁Category : Univers ia de ▁bronze ▁medal ists ▁for ▁Chinese ▁Tai pe i <0x0A> </s> ▁The ▁central ▁ret inal ▁ve in ▁is ▁the ▁ven ous ▁equivalent ▁of ▁the ▁central ▁ret inal ▁ar tery ▁and , ▁like ▁that ▁blood ▁vessel , ▁it ▁can ▁suffer ▁from ▁occ l usion ▁( central ▁ret inal ▁ve in ▁occ l usion , ▁also ▁CR VO ), ▁similar ▁to ▁that ▁seen ▁in ▁oc ular ▁is chem ic ▁synd rome . ▁Since ▁the ▁central ▁ret inal ▁ar tery ▁and ▁ve in ▁are ▁the ▁sole ▁source ▁of ▁blood ▁supply ▁and ▁d rain age ▁for ▁the ▁ret ina , ▁such ▁occ l usion ▁can ▁lead ▁to ▁severe ▁damage ▁to ▁the ▁ret ina ▁and ▁blind ness , ▁due ▁to ▁is chem ia ▁( rest riction ▁in ▁blood ▁supply ) ▁and ▁ed ema ▁( sw elling ). ▁ ▁It ▁can ▁also ▁cause ▁gla u com a . ▁ ▁Non isch em ic ▁CR VO ▁is ▁the ▁mil der ▁form ▁of ▁the ▁disease . ▁It ▁may ▁progress ▁to ▁the ▁more ▁severe ▁is chem ic ▁type . ▁ ▁Tre at ment ▁Tre at ment ▁consists ▁of ▁Anti - V EG F ▁dru gs ▁like ▁Luc ent is ▁or ▁int rav it real ▁ster oid ▁impl ant ▁( O z ur dex ) ▁and ▁Pan - Ret inal ▁Las er ▁Phot oco ag ulation ▁usually . ▁Under lying ▁conditions ▁also ▁require ▁treatment . ▁CR VO ▁without ▁is chem ia ▁has ▁better ▁visual