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Doctor insights on: Can Wearing A Weaker Prescription Damage Your Vision

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Eye prescription is +0.25x-1.0. So my power is "+", but spherical equivalent is "-". Am i myopic or hyperopic? Is near or far vision better?

Eye prescription is +0.25x-1.0. So my power is "+", but spherical equivalent is "-". Am i myopic or hyperopic? Is near or far vision better?

Depends...: +.25 is negligible, so you can say you're emmetropic. However you do have astigmatism, so you are astigmatic . Technically, you're hyperopic with astigmatism. With current data, i couldnt tell you whether near vision or distance vision is better, depends on whether you have presbyopia or not. If you don't have presybiopia, then they are equal. Hope that helps, but it can get confusing.... ...Read more

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Dr. Richard Bensinger
1,698 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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Can wearing a weaker prescription damage your vision?

Can wearing a weaker prescription damage your vision?

No: Just won't be able to see well with them. Sometimes a weaker prescription can be made stronger by tilting or moving the glasses. Also it can improve with a pinhole. ...Read more

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Do eye exercises and wearing a weaker prescription work for improving your vision?

Do eye exercises and wearing a weaker prescription work for improving your vision?

No.: Eye exercises have not been proven in any legimate scientific study to improve vision. Wearing weak glasses will make your eyes tired and give you a headache. They will not improve your vision. ...Read more

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Is a -5.0 vision prescription bad?

Is a -5.0 vision prescription bad?

No: This is a common nearsighted value and as long as it corrects the vision to normal, it is not at all "bad". Bad is when correction is not possible with any lens. ...Read more

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What is my vision if my prescription is -11.00?

What is my vision if my prescription is -11.00?

Counting fingers: A higher degree myopia at the -11 diopter level will not allow you to see the big, 20/400 e on the standard visual changes. The level below that is recorded as counting fingers at some distance (2 feet or 3 feet etc.). Remember that what counts is the corrected vision which should be normal when you wear your glasses or contact lenses. ...Read more

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What is the prescription for people with 20/400 vision?

What is the prescription for people with 20/400 vision?

Depends: There is not a direct correspondance between 20/400 vision (the big e on the charts), and the values needed to correct it. It will be a combination of + or - power along with some degree of astigmatism. You need an ophthalmologist to determine the exact correction. ...Read more

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Why does my reading vision getting worse with longsighted prescription?

Why does my reading vision getting worse with longsighted prescription?

Presbyopia: Correcting for far vision allows the eyes to comfortably focus at distance. At your age, the ability of the eye to change focus begins to deteriorate and is called presbyopia. That's why you see so many people with bifocals where distance is corrected in the upper part and near vision helped in the lower part. ...Read more

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How bad is my vision prescription: OD +1.00 -1.25X180 & OS +0.75 -1.75X167 Everywhere I go = a different response.I've heard mild,mod,severe.

How bad is my vision prescription: OD +1.00 -1.25X180 & OS +0.75 -1.75X167 Everywhere I go = a different response.I've heard mild,mod,severe.

Not too bad: You have astigmatism that is with the role axis. This means that your astigmatism is youthful which may correct it self with time as the lids get heavier with age. Your correction is mild-mod. Less than one diopter consider mild and 1-5 consider low-high moderate respectively ...Read more

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What does "axis" mean with regards to vision prescriptions?

What does "axis" mean with regards to vision prescriptions?

Astigmatism: The axis is the location of the major component of astigmatism in a glasses or contact lens prescription. It is a number that is from 0 to 180 degrees. ...Read more

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Will non-prescription color contacts make my vision blurry?

Will non-prescription color contacts make my vision blurry?

Or worse...: Wearing contact lenses you got without a prescription puts you at risk for a very serious eye infection that could cause blindness. Contact lenses have to be fit to the eye based on the curvature of the cornea. The solution the contacts are bathed in also should be sterile, which may not be guaranteed in a non-prescription contact. ...Read more

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Can I determine my vision from my corrective lens prescription?

Roughly: There is a rough correlation between the prescription and the vision chart-- for each line on the vision chart, there is approximately 0.25 d change in the prescription. So you can estimate your vision based on this formula. ...Read more

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Got new blasses with same prescription and my vision is blurry. Why is this?

Depends: Need to have more info, like your actual prescription, is it blurry for distance or close up or both, does it have bifocal, etc. Etc. Perhaps there was an error in your prescription and its not actually the same prescription. Also, it could be as simple as different shape and size of your lens. You really need to take it back to the provider and discuss your problem. ...Read more

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Would having plano contacts blur my vision more? I do not have my prescription.

Would having plano contacts blur my vision more? I do not have my prescription.

It should not: Unless you have a fitting problem or abnormal curved cornea, you should not have blurred vision. You should see an eyecare specialist first before attempting this especially if they cause blurred cision, pain or even any discomfort. ...Read more

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Why is my vision blurry with my new contacts even though its the same prescription from last time?

Why is my vision blurry with my new contacts even though its the same prescription from last time?

Check for mistakes: The most common problems are the contacts are different in each eye and got switched. Also check that they are not flipped inside out, the diameter and curvature are the same, and that they are the same brand. ...Read more

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Is it possible for you to correct vision to 20/20 also what is 20/40 can you express it as a prescription?

Yes mostly: If the optical and retinal elements of the eye are normal, then correction to 20/20 is the usual outcome with proper eyeglass correction. 20/40 is a level of vision two lines down from "normal" meaning a line of letters large enough that a person seeing 20/20 could read that line of print 40 feet away. The prescription depends on whether you are myopic, hyperopic or astigmatic. ...Read more

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Should i be concerned if my vision prescription is -5.25. What does that stand for when you normally say/see 20/20. Does that mean 20/525?

Should i be concerned if my vision prescription is -5.25. What does that stand for when you normally say/see 20/20. Does that mean 20/525?

Presciption number: Those are two different things, like how much you weigh compared to how fast you can run. Your glasses or contact lens presciption is measured in units called diopters. It is the power of the lens (how curved it is) required to correct your vision back to normal clarity, which is seeing at 20 feet what other normal balanced eyes can see at 20 feet. ...Read more

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I have really poor vision, are there some prescriptions or contacts?

Depends: The cause of your decrease in vision needs to be identified before a solution can created. The most common cause of decreased vision is refractive error which can be corrected with glasses or contacts. If the decreased vision is from an eye health problem, other solutions maybe available. See your eye doctor. ...Read more

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How can I tell how bad my vision is from my contact lens prescription?

Look for the power: The prescription includes power, base curve, diameter. The higher the power, the stronger the prescription in either myopia (-) or hyperopia (+). ...Read more

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