Title: Why Do My Eyes Blackout for a Second? - HubPages
Headings: Why Do My Eyes Blackout for a Second?
Why Do My Eyes Blackout for a Second?
Low Blood Pressure
Retinal Detachment
Vascular Problem
Other Possible Causes
Possible Causes of Visual Blackout

Content: pessimisticlemons, deviantART. Some rights reserved. Retinal Detachment
It is possible that there is a tear at the retina that can cause vision loss for brief moments, because, of course, the eye might not be functioning fully if this has occurred. If a tear happens in the retina, fluid gets behind the retina and lifts it off the wall of the eye, causing a perceived darkness of vision. pinterest-pin-it
Vascular problems could be the cause of a sudden vision blackout. Courtney Rhodes, Flickr. Some rights reserved. Vascular Problem
Some vascular problems can interfere with the structural pathways in the eye that affect vision. Diabetes, retinal artery or vein occlusion, hemorrhage and vasospasm can affect vision. There needs to be, as stated before, sufficient blood, for oxygen, going between brain and eyes for vision to function properly.