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  2. Optical illusion can tell if you need glasses - AOL

    www.aol.com/news/2015-05-14-optical-illusion-can...

    Cover one eye; read the letters aloud. Cover the other eye; read the letters aloud. Ah, the standard eye exam. A few lines of text and the doctor can tell you whether you have poor vision. But let ...

  3. People Who Never Need Glasses Do This One Thing Every Day - AOL

    www.aol.com/people-never-glasses-one-thing...

    "If you don't need glasses before your 40s, chances are you will need to start using reading glasses in your 40s." ... Also, it's good to be aware of the signs that you may need glasses. Dr.

  4. Presbyopia - Wikipedia

    en.wikipedia.org/wiki/Presbyopia

    People with presbyopia require a convex lens for reading glasses; specialized preparations of convex lenses usually require the services of an optometrist. [15] Contact lenses can also be used to correct the focusing loss that comes along with presbyopia. Multifocal contact lenses can be used to correct vision for both the near and the far.

  5. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    The largest letter on an eye chart often represents an acuity of 6/60 (20/200), the value that is considered "legally blind" in the US. Many individuals with high myopia cannot read the large E without glasses, but can read the 6/6 (20/20) line or 6/4.5 (20/15) line with glasses. By contrast, legally blind individuals have a visual acuity of 6/ ...

  6. Astigmatism - Wikipedia

    en.wikipedia.org/wiki/Astigmatism

    Glasses are the simplest and safest, although contact lenses can provide a wider field of vision. Refractive surgery can eliminate the need to wear corrective lenses altogether by permanently changing the shape of the eye but, like all elective surgery, comes with both greater risk and expense than the non-invasive options. Various ...

  7. What kind of solar eclipse glasses do I need?

    www.aol.com/kind-solar-eclipse-glasses-180953758...

    While it may seem like you're purchasing glasses for a one-time event, there is a decent chance you can use the glasses again. A partial solar eclipse will be visible again in 2026 for much of the ...

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