<prompt> Hard exudates are seen in the following exceptHypeensive retinopathyDiabetic retinopathyExudative retinopathy of CoatsLeukemic retinopathy  <response>: Leukaemic retinopathy It is characterised by pale and orange fundus background with dilated and touous veins. In later stages, greyish white lines may be seen along the course of the veins due to perivascular leukaemic infiltration. Aerioles become pale and narrow. Retinal haemorrhages with typical white centre Roth spots are very common. Occasionally large pre-retinal sub hyaloid haemorrhages may also be seen. Ref:- A K KHURANA; pg num:-264 