“…In a series of 95 patients diagnosed with CRVO between 18 and 40 years of age, Chen et al identified that statistically significant (p<0.001) risk factors for CRVO in young adults included primary open angle glaucoma, retinal vasculitis, pseudotumor cerebri, hypercoagulable state, hyperlipidemia, and a prior history of venous thromboembolic disease. 54 , 55 Other studies have identified that CRVO in young adults may be linked to smoking, migraine headaches, collagen vascular disease, medications (oral contraceptives, diuretics, sympathomimetics), and thrombophilia. 49 , 55 , 56 , 57 , 58 , 59 , 60 Young adults presenting with RVO may need a hypercoagulability workup to exclude systemic coagulopathies requiring anticoagulation, such as protein C and S deficiency, Factor V Leiden mutation, hyperhomocysteinemia, antiphospholipid antibody syndrome, prothrombin gene mutation, antithrombin deficiency, hyperviscosity syndrome, amongst others.…”