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A 38-year-old member asked:

What is the difference between double vision and astigmatism?

3 doctor answers4 doctors weighed in
Dr. David Kira
Ophthalmology 23 years experience
Eye Alignment: Double vision - when present with both eyes open is caused by eye misalignment. Astigmatism is a corneal or lens irregularity in focus and can present with a ghost image (double) with either eye open. Also, cataract can cause astigmatism and double vision with either eye open. It is very imporant to distinguish between single and both eyed double vision.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Robert Chang
Specializes in Ophthalmology
Appearance: Double is usually two images separate either horizontally, vertically, or obliquely. Not necessarily blurred unless also uncorrected refractive error. Astigmatism is a refractive error causing slight distortion of an image in one direction. Depends on amount.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Howard Pomeranz
Ophthalmology 30 years experience
Astigmatism: Double vision can be due to optical or ocular alignment abnormalities. When light rays do not focus on the retina properly double vision can result . If the eyes are not moving in sync together double vision can occur as well.
Created for people with ongoing healthcare needs but benefits everyone.

Similar questions

CA
A 45-year-old member asked:

How does astigmatism cause double vision?

2 doctor answers3 doctors weighed in
Dr. Robert Chang
Specializes in Ophthalmology
Out of focus: Astigmatism makes a misshapen image (changed in one axis) and thus can have blurred edges and appear doubled or ghosted.
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:

Astigmatism causes double vision?

3 doctor answers7 doctors weighed in
Dr. Olivia Liao
Ophthalmology 33 years experience
It can: Astigmatism can distort vision enough to cause an image to double. There are many causes of double vision, though and some can be serious. If you are concerned, get examined.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Nov 23, 2019

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