Have you ever looked at an object and seen two of it instead of one? This is called double vision, or diplopia. It can be a simple eye problem, but it can also be a sign of a serious health condition that needs urgent medical attention.
Let’s look at what causes double vision and when you should see a doctor.
What is Double Vision?
Double vision is when you see two images of a single object. The images may be side by side, one above the other, or both. It can happen in one eye only (monocular diplopia) or only when both eyes are open (binocular diplopia).
Sometimes it is short-lived and harmless, for example when you are very tired. But if it starts suddenly or comes with other symptoms, it can be a sign of something more serious.
Common Causes of Double Vision
Double vision can have many causes, such as:
👓 Eye problems in one eye, such as dry eyes, astigmatism or the wrong glasses, cataract, or keratoconus
👀 Eye muscle or nerve problems, such as a squint (strabismus)
💉 Diabetes or thyroid eye disease affecting the eye muscles or nerves
🤕 Head injuries
🧠 Brain and nerve conditions, such as a stroke, brain tumour or aneurysm
😵 Tiredness; migraine can also cause visual symptoms
Finding the underlying cause is essential for the right treatment.
When Should You See a Doctor?
Always get double vision checked. Go to an emergency department straight away or call 108 or 112 if double vision:
- starts suddenly, especially with a drooping eyelid, a bad headache, or a widened pupil
- comes with dizziness, nausea or vomiting, slurred speech, or weakness or numbness in the face, arms or legs
- starts after a head injury
Do not drive yourself. These can be signs of a stroke, aneurysm or another emergency.
See a doctor or eye specialist urgently (the same day) if you have sudden double vision with eye pain. Painful double vision can be linked to conditions such as inflammation of the optic nerve or the eye socket.
Make an appointment with an eye specialist if double vision lasts or keeps coming back, as this can point to a problem with the eye muscles or nerves. Do not drive until a doctor says your vision is safe for driving.
Who Should You Consult?
For double vision that is not an emergency, start with an ophthalmologist, a medical doctor who specializes in eye care. The doctor may arrange:
- A complete eye examination
- Visual acuity and eye alignment tests
- Imaging (MRI or CT scan) if a brain or nerve cause is suspected
- Blood tests to check for diabetes, thyroid, or autoimmune problems
Treatment depends on the cause. It may include glasses or contact lenses, prisms, an eye patch, exercises, treating the underlying condition, or sometimes surgery.
At Chetna Hospital, Chinchwad, the eye care (ophthalmology) department checks and treats the eye-related causes of double vision. Call 91686 90442 to book a check-up.
For Consultation Contact us on 91686 90442 / 9158681123
Website – www.chetnahospital.co.in
Address – Chetna Hospital, Sambhajinagar, MIDC, G Block, Near Rotary Club, Chinchwad 411019
General health information, not a diagnosis. Reviewed and updated by Chetna Hospital’s content team with the help of AI writing tools, November 2026.
