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Cataracts Health Center

Medical Reference Related to Cataracts

  1. Cataracts - What Happens

    Cataracts may remain small and may not be noticeable. They often do not seriously affect vision, and many cataracts do not need to be removed. Some cataracts grow larger or denser over time, causing severe vision changes.

  2. Cataracts - Exams and Tests

    Diagnosis of cataracts is based on a medical history and physical examination. Often tests are used to: Confirm the presence of a cataract. Rule out other conditions that may be causing vision loss. For more information, see the topics Vision Tests, Ophth

  3. Cataracts and Ultraviolet Light - Topic Overview

    Ultraviolet (UV) radiation, such as sunlight, is absorbed by the lens of the eye and can lead to the formation of chemicals called free radicals inside the lens. Over time, free radicals may damage the lens, causing cataracts.People exposed to excessive amounts of sunlight because of their profession (such as agricultural workers), geographic area (such as sunny parts of the country), or use of tanning booths or sunlamps may be more likely to form cataracts.It is not known for sure whether reducing UV exposure helps prevent cataracts.

  4. Cataracts - Medications

    Learn about medications used to treat cataracts.

  5. Cataracts - Surgery

    Surgery for a cataract involves removing the natural lens of the eye that contains the cataract.

  6. Cataracts - Home Treatment

    If you have cataracts, these tips and vision aids may help you manage your vision problems and avoid or delay surgery: Tips for improving vision include repositioning lights or, if you wear them, updating the prescription for your eyeglasses or contact le

  7. Cataracts - Health Tools

    This health tool will help you make wise health decisions or take action regarding cataract surgery.

  8. Cataracts and Your Eyes

    Learn more about your eyes and cataracts, including the causes, symptoms, diagnosis, and treatment.

  9. Tips for Improving Vision When You Have Cataracts - Topic Overview

    Some of these tips might help you adapt to mild vision problems caused by cataracts. Reposition room lights and use window shades to avoid glare (on TV screens,computer screens). Use table or floor lamps for close reading and other fine work,moving them closer to work or reading areas. Use more lighting or higher-watt bulbs for steps and hallways. Keep your eyeglass lens prescription ...

  10. Intraocular Lens Implants for Cataracts and Nearsightedness - Topic Overview

    Intraocular lens implants, which may be used to treat cataracts, replace the eye's natural lens with a clear plastic implant. The implant corrects the nearsightedness caused by the cataract. People with a monofocal lens implant still need reading glasses, because the implant does not affect how well you can focus on near objects. Multifocal lens implants are an option too. Thick glasses or contact lenses are seldom needed after cataract surgery.Retinal detachment is the main risk of treating cataracts with lens implants. This risk is larger with higher degrees of nearsightedness.Replacing the eye's natural lens with lens implants can also correct severe nearsightedness in people who do not have cataracts. This is called clear lens extraction.Lens implants may also be placed without removing the eye's natural lenses. These implants, called phakic intraocular lenses or implantable contact lenses, are placed in front of the natural lens, either in front of or behind the iris.Intraocular

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