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A 39-year-old member asked:

How can you tell if i'm near sighted or far sighted?

1 doctor answer1 doctor weighed in
Dr. Tim Conrad
Ophthalmology 34 years experience
You are : Nearsighted if your best vision without glasses is close to you and farsighted if it is far away.

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A 38-year-old member asked:

What is the difference between being near sighted and far sighted?

1 doctor answer1 doctor weighed in
Dr. Matheson Harris
Ophthalmology 16 years experience
Location of focus: Near sighted means you see better at near and your distance vision is blurry. Far sighted is just the opposite. In near sighted eyes, the image is brought into focus in front of the retina and a diverging lens is needed to push the image backward to focus on the retina. In a far sighted eye, the image is focused behind the retina and a converging lens is needed to bring the image forward.
A 40-year-old member asked:

How do you become near-sighted or far-sighted as you age?

1 doctor answer3 doctors weighed in
Dr. Mitchell Vogel
Ophthalmology 30 years experience
Lens: The lens of the eye changes.
Dr. David Lemme
Dr. David Lemme commented
Family Medicine 35 years experience
As one ages the lens becomes stiffer and less able to accomodate to near vision, so one needs lenses (magnifiers or convex lenses) to make up for this presbyopia, or farsightedness of old age.
Jul 9, 2012
A 31-year-old member asked:

Why are glasses for near sighted people more expensive than those for far-sighted?

1 doctor answer3 doctors weighed in
Dr. Mitchell Vogel
Ophthalmology 30 years experience
They should not be: Get some prices, this should not matter much.

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Last updated Jun 20, 2013

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