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KC changed his vision.
He changed the game.

Keratoconus (KC) changes the shape of your eye and can distort what you see. Stephen Curry lives with it. But KC never got to write his story, he did. One of basketball’s greatest shooters refused to let an eye disease define what came next. Let Stephen’s story be a reminder to not to back down from changing vision. Know the signs. Get checked.

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Stephen Curry is a paid partner of Glaukos.

The Symptoms

Don’t let changing vision take you out of the moment. Know the symptoms, understand the pattern.

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    • Look out for an email with resources to help you along your KC journey.

    What is KC?

    There’s a reason things look different

    [ Keratoconus (KC) ]

    KC is an under-diagnosed, and progressive eye disease in which the cornea (the clear layer on the front of your eye) thins and weakens over time, causing a cone-like bulge to form, oftentimes distorting vision.

    Diagram showing progression of keratoconus from a healthy cornea

    [ Knowing the symptoms ]

    • Excessive eye rubbing
    • Mildly blurred vision
    • Difficulty seeing at night
    • Frequent prescription changes
    • Frequent headaches
    • Family history of KC

    [ Vision impact ]

    Progression over many years can lead to a more irregular cornea and, in some cases, the need for additional medical or surgical care.

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    78% of people with KC had never heard of
    the disease before they were diagnosed.

     Could it be KC?

    Take Action

    Wondering if it could be KC?

    Get screened

    Find an eye care location equipped to evaluate the cornea and detect signs of keratoconus.

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    Talk to someone

    You don’t have to figure this out on your own. KC Care Connect can help answer your questions and point you toward the next step.

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    Take the quiz

    A short awareness quiz, not a diagnosis. The results are meant to help you start a conversation with an eye care professional.

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    Most KC damage occurs
    roughly between ages 10 to 30.

     Could it be KC?

    Stephen’s Story

    Stephen Curry has navigated life with keratoconus (KC).
    Now, he’s helping others do the same.

    Stephen’s Story

    Frequently Asked Questions

    Questions people ask before getting checked

    What is keratoconus? Keratoconus is a sight-threatening eye disease in which the normally round, dome-shaped cornea progressively weakens and thins causing a cone-like bulge to develop. Keratoconus can result in significant vision loss and may lead to a corneal transplant in severe cases.
    Will keratoconus get worse if left untreated? Keratoconus is a progressive disease which worsens over time. Left untreated, keratoconus can result in significant visual loss and may lead to a corneal transplant in severe cases.
    What are the signs and symptoms of keratoconus? Signs and symptoms of keratoconus usually appear in the late teens to early twenties. In the early stages of keratoconus, people might experience slightly blurry vision, distorted vision, or increased sensitivity to light. Other signs and symptoms also include excessively rubbing eyes, frequent changes in eyeglass prescription, vision that cannot be fully corrected with glasses or contacts, difficulty seeing at night, and frequent headaches.
    What causes keratoconus? While the exact cause of keratoconus is unknown, it is believed that genetics, the environment, and hormonal changes all play a role.
    Does keratoconus affect both eyes? Keratoconus usually affects both eyes, although it may be worse in one eye as the disease progresses. It is rare that only one eye is affected.
    Who gets keratoconus? Signs and symptoms of keratoconus usually first appear in the late teens to early twenties. US prevalence of KC is highest in adults aged 18-39 years, with significantly higher prevalence in Black and Hispanic populations.1
    Is keratoconus genetic? Some cases of keratoconus have a hereditary component and studies indicate that people with a parent, sibling, or child who has KC are roughly 6-25 times more likely to have or develop keratoconus compared to someone with no family history of the disease.2,3
    What changes in my vision can I expect after being diagnosed with keratoconus? Keratoconus is a progressive disease which worsens over time. It can cause your vision to progressively decline. Ask your eye doctor what to expect with changes to your vision.

    [ References ]

    1. Singh RB, Parmar UPS, Jhanji V. Prevalence and Economic Burden of Keratoconus in the United States. Am J Ophthalmol. 2024 Mar;259:71-78. doi: 10.1016/j.ajo.2023.11.009.
    2. Almusawi, L. A., & Hamied, F. M. (2021). Risk Factors for Development of Keratoconus: A Matched Pair Case-Control Study. Clinical Ophthalmology, 15, 3473–3479. https://doi.org/10.2147/OPTH.S248724
    3. Hashemi H, Heydarian S, Hooshmand E, Saatchi M, Yekta A, Aghamirsalim M, Valadkhan M, Mortazavi M, Hashemi A, Khabazkhoob M. The Prevalence and Risk Factors for Keratoconus: A Systematic Review and Meta-Analysis. Cornea. 2020 Feb;39(2):263-270. doi: 10.1097/ICO.0000000000002150. PMID: 31498247.