<prompt> Exudative retinopathy in hypeensive is due toCo-arctation of aoaType I takaysus aeritisRenal aery stenosisDiabetic atherosclerosis  <response>: C i.e. Renal aery stenosis Renal retinopathy describes the retinal changes seen in chronic renal failure. These may mimic a hypeensive retinopathy of grade III or IV but the tendency to exudates formation is marked paicularly at the macula.Q Severe hypeension in eclampsia may precipitate a florid retinopathy of grade IV often with exudative retinal detachment. This detachment clears rapidly with the termination of pregnancy when the hypeension is under control. 