Though I prefer using natural therapies, if you have vision loss in one eye, call 911 and go to the emergency room immediately — even if it clears up on its own.

Sudden loss of vision in one eye should be treated as a medical emergency, and the person should immediately be taken to the emergency room.

This symptom can be a warning sign for a stroke, just like loss of function in an arm or leg on one side or sudden difficulty with speech can be a warning sign for an oncoming stroke.
Caught early, the entire stroke may be prevented, where waiting could leave the person paralyzed.

If you experience vision loss in one eye, call 911 or your local ambulance and go to the emergency room.