Hello, I can also take it as ocular migraine. If you have ocular migraine you may get vision loss or blindness in one eye for a short time less than one hour. you can have it before or along with a migraine headache. Regular migraine attacks can also cause vision problems, called an aura, which can involving flashing lights and blind spots. However, usually appear in both eyes. Vision problems that effect just one eye -these include migraine with an aura or a change in vision. It might happen for only a few minutes or up to 30 mins. Causes of migraine still are not clear but it can linked to: _Spasm in blood vessels in the retina, the lining in the back of eyes _Changes the spread across the nerve cells in the retina Treatment may include: _Drugs that treat epilepsy such as Valproic acid or Topiramate as per proscribed Tricyclic antidepressants Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Ishu Bishnoi, Neurologist, Surgical