[Transient visual loss due to neurological cause]

Acute decrease of mono or binocular vision although it is not a common clinical symptom, is of major importance, with serious implications for the patient and physician, requiring a comprehensive approach in terms of clinical, laboratory and therapeutic. It is an attempt that often proves difficulty by lack of access to specific investigations and the lack of neuroophthalmology specialists. In most cases, the sudden decrease of vision occurs in the stroke of the eye by occlusion of central retinal artery or one of its branch, occlusion of vein, occlusion of optic nerve vessels or by demyelinating processes of the optic nerve. Rapid diagnosis of eye disease by appropriate clinical or paraclinical investigations, leads to prompt treatment with decreased risk of complications, but in many cases it requires preventive measures.