When you stare at an object for a length of time and then look at a blank wall you can see an indistinct coloured image of the object you had been staring at. This is known as retinal fatigue.
Retinal veins are larger than retinal arteries. Retinal veins are between 2/3 to 3/4 times larger than the arteries of the retina. Retinal vein are also darker red then the arteries.
retinal breaks or detachments; retinal ischemia (retinal tissue that lacks oxygen); neovascularization (proliferation of blood vessels in the retina); Coats' disease
Retinal vein occlusion refers to the closure of the central retinal vein that drains the retina or to that of one of its branches.
The contrast of Red and Green side by side will cause retinal fatigue. Here is a source of some very interesting information on color: http://webexhibits.org/colorart/simultaneous.html
Retinal
Multiple retinal hemorrhages-- Bleeding in the back of the eye.
Retinal artery occlusion refers to the closure of the central retinal artery and usually results in complete loss of vision in one eye.
Retinal reattachment has an 80-90% success rate.
can i fly with a retinal vein thrombosis
Patients suffering from retinal detachments are commonly nearsighted, have had eye surgery, experienced ocular trauma, or have a family history of retinal detachments.
The two major RVO types are central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO).
For retinal reattachments, the retina can be repaired in about 90% of cases. Early treatment almost always improves the vision of most patients with retinal detachment.