Double Vision In Left Eye After Falling Unconscious. CT Scan Normal. Reason?

Posted on Wed, 22 Aug 2012

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Wed, 22 Aug 2012 Answered on

Sat, 8 Sep 2012 Last reviewed on

Question : last week i fell down unconcious and am having double vision since then in my left eye . Ct scan is OK. What can be reason?

Answered by Dr. Sudhir Kumar (6 hours later)

Hi Mr XXXXXXX
Thank you for contacting Healthcare Magic.
Loss of consciousness and double vision indicate a problem with brain functions. The most likely reason could be a lacunar infarct (small blood clot) of brain stem. Since the nerves for eye movements begin in the brain stem (mid brain part), any lack of blood supply there could lead to diplopia. In addition, other symptoms could include dizziness, imbalance while walking, etc.
CT scan may be normal as the resolution is not very good with it. On the other hand, MRI scan of the brain may show the disease.
Please show to a neurologist for further evaluation. Please get back if you have any more queries.
Best wishes,
Dr Sudhir Kumar MD DM (Neurology) XXXXXXX Consultant Neurologist
Apollo Health City, Hyderabad

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar