Eritropenia

Eritropenia - bad visual perception when all the items are represented painted a reddish color. Eritropenia occasionally may occur after the surgery, cataract extraction. The emergence explain the screening of blood choroid or glare of the visual purpura.

Eritremia (erythropsia; from the Greek. erythros red and opsis - vision, visual perception) - bad visual perception when all the items are represented painted a reddish color. Can occur in people with normal colour vision as a result of long-commit is very bright, rich ultraviolet rays of the light source. Especially sharply there is eritropenia afakii. The emergence of retropete explain the screening of blood from choriocapillaris layer of the choroid or glare of the visual purpura. Eritrotsity also considered as prolonged negative phase of the phenomenon of successive images caused by long-term fixation bright short-wave light.