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A 45-year-old member asked:

Astigmatism might require corrective lenses or glasses. at what level of astigmatism would i need help?

1 doctor answer1 doctor weighed in
Dr. Rebecca Dale
Ophthalmology 21 years experience
When blurred: Astigmatism is very common -- almost everyone has a little bit. It simply means that the cornea is not perfectly round, but rather has one steeper and one flatter curvature (like the side of a football rather than a basketball). People with more than 0.75diopters of astigmatism usually notice that images are blurred without glasses or contacts.

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A 36-year-old member asked:

What are the conditions that lead to needing corrective lenses or glasses?

1 doctor answer2 doctors weighed in
Dr. Andrew Shatz
Ophthalmology 26 years experience
The big 4: Nearsightedness (myopia), farsightedness (hyperopia), astigmatism and presbyopia (need for reading glasses) are usually corrected with corrective lenses.

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Last updated Jul 13, 2015

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