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Doctor insights on: What Is The Difference Between Double Vision And Astigmatism

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What is the difference between double vision and astigmatism?

What is the difference between double vision and astigmatism?

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. ...Read more

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Dr. Richard Bensinger
1,667 doctors shared insights

Vision (Definition)

Vision is a feature of a person's brain that allows him to see. He must have normal eyes, optic nerves (that stretch from the eyes to the back of his brain), and visual cortex (the vision center in the brain), in order to see properly. An ophthalmologist is a ...Read more


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Astigmatism causes double vision?

Astigmatism causes double vision?

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. ...Read more

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How does astigmatism cause double vision?

Out of focus: Astigmatism makes a misshapen image (changed in one axis) and thus can have blurred edges and appear doubled or ghosted. ...Read more

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Myopic w/ astigmatism & ms, i've had increasing double vision despite being treated w/ tysabri (natalizumab). For correction, do I need ophthalmologist or neuro-op?

Myopic w/ astigmatism & ms, i've had increasing double vision despite being treated w/ tysabri (natalizumab). For correction, do I need ophthalmologist or neuro-op?

Depends : If your double vision goes away when you close either eye, it's a muscle problem and a neuro-oph would be best (though an ophthalmologist could always see you too). If the double vision seems to be only in one eye, then it is a refractive problem and you should see an ophthalmologist. Could be anything from needing glasses to having a cataract. ...Read more

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Monocular diplopia associated with astigmatism--any treatment?

Monocular diplopia associated with astigmatism--any treatment?

Depends on cause: Most cases of monocular diplopia are caused by dysfunctional tear syndrome. The first step is to assess and treat tear film abnomality. Next common causes are lens abnormalities. Corneal irregularities also cause this most are obvious but some can only be discovered with computerized analysis of the cornea. Retinal edema can cause this as can optic nerve disease but with decreased vision. ...Read more

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What are causes of vertical monocular diplopia? My mother & I have had this our whole lives. Most noticible at close range. I have slight astigmatism.

Likely astigmatism: Monocular diplopia (double vision when only one eye is open) really only has a few causes. Uncorrected astigmatism is probably the most common of these. Other causes can be things like cataract or dry eye disease. It's pretty easy for an ophthalmologist to figure out what is going on with you so it might be worth a visit. ...Read more

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What is the difference between double vision and ghosting?

Muscle imbalance: Double vision is due to the eyes pointing in different directions. Cover either eye and the image becomes single. Ghosting is typically due to astigmatism. It goes away by looking through a pin hole in a piece of cardboard, or proper glasses or contacts. If one eye is covered and there is still double the astigmatism is strong, if there is just ghosting the astigmatism is mild. ...Read more

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What's the difference between double vision and ghost vision?

Different causes: Most double vision is when the eyes are misaligned and two equal images are perceived. Ghost vision is when one image is different and usually fainter. It usually comes from blur defects in one eye only. ...Read more

Dr. Tim Conrad
388 doctors shared insights

Astigmatism (Definition)

Astigmatism is an eye condition that causes blurry vision because the eye is unable to focus light to a point and thus unable to produce a sharp ...Read more


Dr. Howard Pomeranz
356 doctors shared insights

Double Vision (Definition)

When two separate images which are displaced in space are perceived at the same time due to a ...Read more