True regarding amaurosis fugax are all except:
Amaurosis fugax Sudden, temporary and painless monocular visual loss occurring due to a transient failure of retinal circulation. Uniocular lesion Lasts for 2-5 minutes and resolves in the reverse pattern of progression, leaving no residual deficit. Fundus : May be normal or shows retinal ischemia-Retinal oedema and small superficialhaemorrhages Causes : Carotid transient ischaemic attacks (TIA) Embolization of retinal circulation Papilloedema Giant cell aeritis Raynaud's disease Migraine Hypeensive retinopathy Venous stasis retinopathy
Transient, recurrent episodes of visual loss
Binocular lesion
Embolus from carotid aery is commonest cause
Ocular examination may be normal
Investigation in ophthalmology and miscellaneous topics