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Doctor insights on: Astigmatism Vs Myopia

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Could astigmatism increase as fast as myopia?

Could astigmatism increase as fast as myopia?

Shouldn't: Astigmatism can change over time. Past age 26, it is rare for myopia to progress until cataract formation. If astigmatism is increasing, you need to see a specialist eye MD to rule out keratoconus, a serious condition of the cornea which is much easier to treat in early stages. Keep your own record of your glasses prescription from your annual exams. ...Read more

Dr. Tim Conrad
391 Doctors shared insights

Astigmatism (Definition)

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


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Can you have astigmatism without having myopia?

Can you have astigmatism without having myopia?

Yes: Some eyes are simply oval in shape, the basic problem in astigmatism. Myopia is an additional feature of eyeglass needs and is independent of astigmatism. Some eyes have only one or the other. ...Read more

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Are there contacts for both astigmatism and myopia?

Are there contacts for both astigmatism and myopia?

Yes: There are toric contact lenses that will correct for both near sighted ness and astigmatism. Also traditional rigid gas permeable lenses will also be able to offer you correction. ...Read more

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High myopia category involves the astigmatism also?

Possibly: Depending on the way a glasses prescription is written, astigmatism can affect the numerical value of myopia. Let's say someone was -6.25 with +1.00 cylinder (astigmatism). This is written in "plus cylinder" notation. If written in minus cylinder, it would be -5.25 with -1.00 cylinder. You can also take the "spherical equivalent", which would be sphere + 1/2 (cyl), or -5.75 in this case. ...Read more

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What can cause myopia and astigmatism after age 20?

What can cause myopia and astigmatism after age 20?

Not unusual: Myopia and astigmatism can progress through the mid 20s in some cases - not usually to much of a degree. You might have had a good tolerance of blur prior to age 20 and only now are concerned about the blur. These are usually intrinsic - there is no "cause". ...Read more

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What are the differences between astigmatism & myopia?

What are the differences between astigmatism & myopia?

See below: Myopia, or nearsightedness, is usually caused by the eye being longer than the focusing power. Astigmatism is when the cornea (the front window of the eye) is not spherical - more like a football than a basketball. ...Read more

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Please tell me how does astigmatism/myopia affect vision?

Please tell me how does astigmatism/myopia affect vision?

Visual blur: Myopia causes blurred images more significant the farther away the object is located for viewing. Astigmatism causes an elongated distorted due to the fact that it arises when the eye is a bit oval in shape. They can occur together. Most of these can be corrected with proper eyeglasses or contacts lenses. ...Read more

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Could everyone with myopia/nearsightedness have astigmatism?

Astigmatism: Very few people have no astigmatism, there are varying degrees of astigmatism. You can have myopia or hyperopia with astigmatism. ...Read more

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Is it true that everyone with myopia / nearsightedness has an astigmatism?

No: Myopia means that light comes to a focus in front of the retina. Astigmatism means light in comes to multiple focal points rather than one. It is possible to have either condition in isolation or both together. ...Read more

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What's the difference between myopia and astigmatism. Can you have astigmatism without having myopia?

What's the difference between myopia and astigmatism. Can you have astigmatism without having myopia?

Two separates: Myopia is very near vision and need for glasses beyond a foot or so. You may can read when very close to you but cannot see beyond arms length. Astigmatism is an irregular contour of the cornea and causes waviness and blurring in the pattern of sight. You can have one without the other. Your eye care professional can examine you and correct most of these problems. Seeing it clearer? ...Read more

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Astigmatism myopia -- is it harmful?

No: These are ordinary errors of refraction 9a need for optical correction) and are not harmful even if uncorrected. They may cause you to see less clearly unless corrected. ...Read more

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How severe is -3 diopter astigmatism and -8 diopter myopia?

Myopia: Nearsightedness or myopia is very common. It is not uncommon for us to see patients who are -10 diopters or more. Be sure you have a dilated retinal exam every year and you know what retinal detachment signs look like (burst of black floaters, flashing lights, new floaters, curtain coming down over your vision); consider polycarbonate glasses for protection especially during sports. ...Read more

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What are ortho-k lenses used for: myopia (nearsightedness) or astigmatism?

What are ortho-k lenses used for: myopia (nearsightedness) or astigmatism?

Both: Ortho-k is an expensive and non-sensible treatment. With this, you wear contact lenses while you sleep that mould the cornea. This allows better vision. During the day, the cornea reshapes itself to normal. What this means is that you see well for a few hours and your vision fades as the day progresses.

A more sensible and cheaper solution is to wear contact lenses during the day. ...Read more

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I don't understand;hyperopia or astigmatism or myopia?

Refractive error: These are the names of different refractive errors. For clear vision, light must be focused by the eye onto the retina. Myopia, or nearsightedness, is when the eye focuses light in front of the retina. Hyperopia, or farsightedness, is when the eye focuses light behind the retina. Astigmatism is when light does not come to one focal point but is spread over a range. ...Read more

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If a person have astigmatism+myopia in his vision will he be able to see 20/20 without cylindrical correction if he just wear his myopic correction?

If a person have astigmatism+myopia in his vision will he be able to see 20/20 without cylindrical correction if he just wear his myopic correction?

Possibly: The answer there largely depends on the degree of the astigmatism. Often individuals with small amounts of astigmatism can see 20/20 with the spherical correction alone. ...Read more

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I was wondering what are myopia, hyperopia, presbyopia, and astigmatism?

Refractive errors: Myopia means nearsightedness, with the ability to see near but not far away. Hyperopia, or farsightedness is usually not an issue for younger people but causes issues in older adults. Astigmatism occurs when the front surface of the eye is not round and causes distortion. It is corrected like the above errors. Presbyopia means "old eyes" and refers to the need to reading glasses in adults. ...Read more

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Can you have both astigmatism and hyperopia/myopia at the same time?

Can you have both astigmatism and hyperopia/myopia at the same time?

Yes: Astigmatism, myopia and hyperopia are all different types of refractive error. It is entirely possible to have astigmatism by itself, or with either myopia or hyperopia. ...Read more

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How to stop the progression of myopia? I'm 28 years old, male, office work, -7 diopters with astigmatism

How to stop the progression of myopia? I'm 28 years old, male, office work, -7 diopters with astigmatism

Little needed: At your age, myopia has run its course and there is little likelihood of further changes. You might be a good candidate for lasik as things have stabilized and the results should be good. ...Read more

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Is astigmatism a combination of poor vision and myopia?

Is astigmatism a combination of poor vision and myopia?

No: Astigmatism is a separate issue in which the cornea is somewhat oval and the correction is a reverse oval in the glasses or contacts. You ophthalmologist can show you the two issues on your latest refractive prescription. ...Read more

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Is astigmatism a combination of both poor vision and myopia?

Is astigmatism a combination of both poor vision and myopia?

No: Myopia means that light comes to a focus in front of the retina. Astigmatism means light in comes to multiple focal points rather than one. It is possible to have either condition in isolation or both together. ...Read more

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Can medical marijuana be used to treat high myopia and astigmatism?

Can medical marijuana be used to treat high myopia and astigmatism?

No: Glaucoma is the only eye condition that marijuana has been known to benefit. There are also better, safer alternatives. Myopia and astigmatism needs eyeglasses or in some cases, contacts. Your ophthalmologist or optometrist can help with that. ...Read more

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If I have blurry vision, how can I know which one (astigmatism or myopia) is causing the problem?

If I have blurry vision, how can I know which one (astigmatism or myopia) is causing the problem?

Refraction will tell: Both astigmatism and myopia (nearsightedness) can blur your distance vision. If you have a large amount of astigmatism you may notice a starburst pattern from red tail lights at night. High amounts of astigmatism will blur both near and far vision, while myopia will blur the distance, with near vision being clear. Get a refraction to find out for sure. ...Read more

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Is having a cataract surgery effective for high myopia and astigmatism?

Is having a cataract surgery effective for high myopia and astigmatism?

It may be: Although the main reason for cataract surgery is to remove the cloudy lens, modern techniques - including toric implants, multifocal implants, and laser cataract surgery - can drastically reduce or even eliminate both astigmatism and myopia. ...Read more

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I have myopia and astigmatism and now iam wearing prescription glasses can I use this glasses when reading books or in computer. Thank u?

I have myopia and astigmatism and now iam wearing prescription glasses can I use this glasses when reading books or in computer. Thank u?

Absolutely: Correction of your refractive error improves your visual clarity and generally lessens visual strain and therefore improves comfort. Enjoy. ...Read more

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Eyes have myopia of -4.00 and -4.50 and I am 29/male/white. Have had astigmatism since I was very young. Am afraid of pathological myopia. Is this rare?

Eyes have myopia of -4.00 and -4.50 and I am 29/male/white. Have had astigmatism since I was very young. Am afraid of pathological myopia. Is this rare?

Not likely: The amount of myopia you have would be generally classified as moderate (you say you have astigmatism but your prescription as described does not show it). Pathologic changes in the eye are more typically seen with higher degrees of astigmatism than you have. To be sure, you should have a dilated examination with a careful check of your retina and the retinal periphery. ...Read more

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I had -1.5 myopia w/o astigmatism & it have been stable eye sight for past year. It took now 3 month to change to -2! I use my smart phone much. Nl?

I had -1.5 myopia w/o astigmatism & it have been stable eye sight for past year. It took now 3 month to change to -2! I use my smart phone much. Nl?

Your age?: It is possible that you have eye strain with focus spasm. It is also possible that your refractive state has advanced to -2 diopters of myopia. A cycloplegic refraction can sort the issue out. If you are over age 26, it is unlikely that your myopia advanced. ...Read more

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Can eye surgery correct myopia with astigmatism?

Can eye surgery correct myopia with astigmatism?

Astigmatism correctn: Absolutely. The vast majority of corneal refractive surgery, i.e. Lasik or surface ablation/prk, is for just that. Most people wearing glasses for distance vision are myopic, and most of them have some amount of astigmatism as well. Today's lasers can correct a very high proportion of your myopia and your astigmatism. Some lasik surgeons give free educational appointments or seminars. ...Read more