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A female asked:

If i have 20/40 vision in one eye and 20/50 in the other do i need glasses?

1 doctor answer1 doctor weighed in
Dr. Jon Fishburn
Ophthalmology 30 years experience
Makes sense : If your Vision has correctable improvement with glasses, why not clear up your visual world. This is particularly helpful for performing distance related activities. If you are otherwise asymptomatic, you are not required to wear glasses. Note that there are driving restrictions to visual acuity that does not meet certain state enforced minimum levels.

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Canada
A 19-year-old female asked:

Do you need glasses when your vision is -0.75 and other eye -0.50?

1 doctor answer5 doctors weighed in
Dr. Hussain Elhalis
Ophthalmology 11 years experience
Not necessarily: Decide whether you are comfortable with your vision without the glasses. Some folks with low prescriptions like yours will decide to wear that glasses only at night while driving. Nearsightedness gets worse at night when the pupils are dilated. Good luck.
A 33-year-old member asked:

I have 20/30 and 20/40 vision. How do I know which eye is which?

1 doctor answer2 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Experimentation: Assuming that; the best corrected vision is 20/30 in one eye and 20/40 in the other. Then look in the distance with best correction and compare the two, using each independent. If an object at the limits of resolution is clear, but blurry with the other eye, then the first eye is 20/30.

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Last updated Oct 10, 2015

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