How can I fix vertical double vision?
FEB 13, 2024
Question:
I have vertical diplopia (double vision) affecting both eyes to the same degree. Whether I am covering each eye or both eyes are open, the double image is present in a similar manner (the ghosted image appears above the stronger image). My ophthalmologist said I probably just have eye fatigue. I did get glasses for astigmatism from the same doctor, which does help my vision, but it also makes the two separate images more clear. It has never gone away in two years, and increases in intensity irregularly. Should I see another doctor? If so, what type?
Answer:
When a person sees a ghost image with each eye alone and with both eyes open, it means the problem is in the focusing portion of the eye (the cornea and the lens) and not in the eye motor system (or muscles of the eyes).
A frequent cause of ghosting is astigmatism (an oval-shaped cornea or lens), but it can also come from abnormalities of the lens. As you note it is improved somewhat by refraction (glasses), but not always.
In any case, this is a situation that requires a comprehensive exam to determine the cause. Any type of ophthalmologist should be able to investigate this issue.
This question was originally answered on Aug. 30, 2016.