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  1. Dictionary
    cataract
    /ˈkatərakt/

    noun

    • 1. a medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision: "she had cataracts in both eyes" Similar opacityopaqueness
    • 2. a large waterfall: "the river descends in a succession of spectacular cataracts" Similar waterfallcascadefallsrapids

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  2. www.mayoclinic.org › diseases-conditions › cataractsCataracts - Symptoms and causes - Mayo Clinic

    A cataract is a clouding of the lens of the eye, which is typically clear. For people who have cataracts, seeing through cloudy lenses is like looking through a frosty or fogged-up window. Clouded vision caused by cataracts can make it more difficult to read, drive a car at night or see the expression on a friend's face.

  3. en.wikipedia.org › wiki › CataractCataract - Wikipedia

    A cataract is a cloudy area in the lens of the eye that leads to a decrease in vision of the eye. [1] [7] Cataracts often develop slowly and can affect one or both eyes. [1] Symptoms may include faded colours, blurry or double vision, halos around light, trouble with bright lights, and difficulty seeing at night. [1]

  4. www.merriam-webster.com › dictionary › cataractCataract Definition & Meaning - Merriam-Webster

    The meaning of CATARACT is a clouding of the lens of the eye or of its surrounding transparent membrane that obstructs the passage of light. How to use cataract in a sentence. Did you know?

  5. www.webmd.com › eye-health › cataractsCataracts - Causes, Symptoms, Risk Factors, Diagnosis ... - WebMD

    Feb 13, 2024 · Written by WebMD Editorial Contributors. What Are the Symptoms? Cataract Causes and Types. How Are Cataracts Diagnosed? What’s the Treatment? 10 min read. If you’re over 60 and your vision...

  6. www.nei.nih.gov › eye-conditions-and-diseases › cataractsCataracts | National Eye Institute

    Nov 15, 2023 · A cataract is a cloudy area in the lens of your eye. More than half of all Americans age 80 and older either have had cataracts or have had surgery to get rid of cataracts. Learn about the types, symptoms, and causes of cataracts and how your doctor will diagnose and treat them.

  7. www.healthline.com › health › cataractCataract: Types, Causes and Risk Factors - Healthline

    Sep 29, 2017 · A cataract is a dense, cloudy area that forms in the lens of your eye. It develops slowly and eventually interferes with your vision. A cataract begins when proteins in...

  8. www.visioncenter.org › conditions › cataractsWhat Are Cataracts and How Can They Be Treated? - Vision Center

    Feb 5, 2024 · A cataract is when an area of the eye’s lens (clear inner part of the eye) becomes foggy or cloudy. This common eye disorder happens when proteins break down and clump together. The eye lens is naturally clear and responsible for focusing light on the retina.

  9. www.aao.org › eye-health › diseasesWhat Are Cataracts? - American Academy of Ophthalmology

    Oct 16, 2023 · A cataract is when your eye's natural lens becomes cloudy. Proteins in your lens break down and cause things to look blurry, hazy or less colorful. In this article: Vision Problems with Cataracts. Symptoms of Cataracts. Causes of Cataracts. Diagnosing Cataracts. Treating Cataracts. Inside our eyes, we have a natural lens.

  10. www.health.harvard.edu › diseases-and-conditions › cataractCataract: Symptoms, diagnosis, and treatment - Harvard Health

    Dec 28, 2014 · A cataract is a clouding of the lens. This distorts or blocks the passage of light through the lens, causing cloudy or blurred vision, other visual problems, and even blindness. The name cataract comes from the term for "huge waterfall," which is how some people describe their clouded sight: like trying to look through a waterfall.

  11. www.mayoclinic.org › diseases-conditions › cataractsCataracts - Diagnosis and treatment - Mayo Clinic

    Cataracts. Request an Appointment. Symptoms & causes. Diagnosis & treatment. Doctors & departments. Diagnosis. To determine whether you have a cataract, your eye doctor will review your medical history and symptoms. They also will perform an eye exam. Your doctor may do several tests, including: Vision test.