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What causes nearsightedness?

By Anonymous September 27, 2014 - 2:01pm
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Does watching TV or reading too much really cause it?

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HERWriter Guide

Hi Anon

Thanks for your question and welcome! 

You can't really prevent this kind of vision issue - it is often due to aging although someone at any age can be nearsighted (meaning they see things well up close but not far away). Too much reading or TV will not cause nearsightedness. 

Nearsightedness is caused by structural distortions within the eye.

In myopia (nearsightedness), your eyes focus the image ahead of the retina. This usually occurs with an eyeball that is longer or a cornea that is steeper than normal.

  • Blurred vision of distant objects
  • Squinting
  • Eyestrain
  • Headaches

Treatment may include:

  • Eyeglasses
  • Soft contact lenses
  • Laser in situkeratomileusis (LASIK) —the use of a laser to permanently reshape the cornea by etching away cells beneath its surface (the most common surgical treatment for myopia)
  • Laser epithelial keratomileusis(LASEK)—a procedure that is quite similar to LASIK, but differs in a technique of removal of the first layer of cornea. LASEK supposedly offers benefits over the typical LASIK procedure in terms of faster healing time and decreased post-surgical pain. Those benefits have been however questioned by recent studies. More research is needed to clarify the benefits of the LASEK procedure.
  • Epi LASIK procedure (Epithelial laser-assistedin situ keratomileusis)—a hybrid procedure that combines elements of both LASEK and LASIK.
  • Photorefractive keratectomy (PRK)—the use of a laser to permanently reshape the cornea by removing cells on its surface (less commonly done)
  • Radial keratotomy (RK)—the use of microincisions to flatten the cornea (rarely done)
  • Intraocular lenses—in some situations, removing your native lens and possibly replacing it with an intraocular lens can help treat myopia

Anon, has this explained things to you?



September 27, 2014 - 5:53pm
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