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Doctor insights on: Is It Necessary To Wear Glasses If You Have Distant Visual Acuity

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Is it necessary to wear glasses if you have distant visual acuity?

Is it necessary to wear glasses if you have distant visual acuity?

No: If you see well at distance without glasses or contacts, that is fine. Not wearing glasses, even if needed, does not hurt or damage your eyes, if you are over 45, you may need reading glasses if you have good distance vision . Or, you can try monovision with a contact lens, with the non-dominant eye set for reading. Lasik in the non-dominant eye for reading might also be an alternative to explore. ...Read more

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Visual Acuity (Definition)

Visual acuity is the measure of the sharpness of vision. It is the most important measurement of eye function. In the us, the antiquated snellen visual acuity measurement is most often used. This is the "20/20" thing you have ...Read more


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My eyeglasses prescription is -8.00. What's a best guess at my snellen visual acuity?

My eyeglasses prescription is -8.00. What's a best guess at my snellen visual acuity?

With or without : It depends if you are corrected without any other eye issues then you probably can see 20/20. You cannot see snellen chart without correction therefore there is no measure for it. You probably can see near card at 4-6inches without correction. ...Read more

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What is an example of a bad score on a visual acuity test? When are you bad enough to need glasses to drive?

What is an example of a bad score on a visual acuity test?  When are you bad enough to need glasses to drive?

20/40 or Worse: A distance vision test of 20/40 or worse will disqualify you on a dmv physical here in california. They differ state to state, but i believe they are the same. So 20/40, 20/50, 20/60, etc would be examples of worsening vision. 20/20 is perfect. It is what you see from 20 feet / what a normal person sees from. ...Read more

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Going to have vision screening next week. What might i expect my visual acuity to be without my glasses?

Going to have vision screening next week. What might i expect my visual acuity to be without my glasses?

Depends: Your examining person will test your vision without eyeglasses and the level will depend upon your basic need for eyeglass correction as well as any pathological defects of the eyes. The acuity level will depend upon how strong these needs are. If you can see as well as your peers, then your acuity will likely be good. ...Read more

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If my daughter's visual acuity is 20/40 both eyes, why would the doctor recommend "no glasses needed"?

If my daughter's visual acuity is 20/40 both eyes, why would the doctor recommend "no glasses needed"?

Depends : Kids actually are quite nearsighted at birth (20/400) & gradually improve over time reaching the common 20/20 at 4-6y. In many states u will pass a drivers eye test at 20/40. At this point the dr may consider the treatment as minimal benefit for her function & consider the possibility it will improve on its own. A frank discussion of your concerns & his/her reasoning should be your next quest. ...Read more

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Please answer! what prescription for 20/40 visual acuity?

Please answer! what prescription for 20/40 visual acuity?

Depends: As a rule of thumb, the strength of the prescription needed to correct 20/40 vision is about one diopter. It may be one diopter of correction for nearsightedness, farsightedness, astigmatism, or a mix of astigmatism with nearsightedness or farsightedness. Your eye doctor will perform a refraction to determine the exact prescription and an exam to rule out a medical cause for blurred vision. ...Read more

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Dr. Tim Conrad
761 doctors shared insights

Glasses (Definition)

Glasses is a term that describes a pair of lenses that are placed in a frame to be worn to correct faulty vision ...Read more


Dr. Tim Conrad
495 doctors shared insights

Eyeglasses (Definition)

Babies sometimes need eyeglasses to correct vision or to correct ...Read more