Killer H E
Augenklinik Kantonsspital Aarau.
Schweiz Rundsch Med Prax. 1990 Dec 4;79(49):1538-40.
The origin of unusual visual phenomena is usually located in the brain or in the brainstem. They appear with normal ophthalmologic findings. Neurologic and ophthalmologic knowledge is needed for a localizing diagnosis and neuro-imaging is most often required. Selected cases of peripherally to centrally located lesions are presented.