Why does the vision of the eyes on right side blackout?

Transient visual los. There are many possibilities.It depends on wheter it is visual loss to one side of both eyes or involving one eye only.The frequency and duration of the visual loss as well as the medical and smoking history is very important.Bottom line is that this symptom may be a sign of something serious such as impending stroke or more benign such as migraine or even anxiety but consult with an eyemd now.
It shouldn't. Vision should not black out. If there is loss of vision in each eye off to the right side, this may signify a serious condition such as a stroke. If you are experiencing any vision loss that does not resolve within an hour, or you have repeated episodes of any type of vision loss, please see an eye doctor as soon as you can.