Retinal arterial obstruction in children and ... The pattern visual evoked potential and pattern electroretinogram in drusen-associated optic neuropathy. Arch Ophthalmol 1992;110:75–81.

So you can have something called a central retinal vein occlusion, and that's where you get that occlusion or thrombosis at the level of the optic nerve. And that prevents blood flow through the ...

Diabetic retinopathy (DR) is the primary cause of visual impairment among working-age populations in industrialized nations.