A condition that occurs when the cornea in the front of the eye, which normally is round, becomes thin and cone shaped. As a result, one’s vision becomes blurry and distorted, making tasks such as reading or driving difficult.

Keratoconus often starts when people are in their late teens to early 20s, with vision symptoms slowly getting worse over time.

Common symptoms of early stage keratoconus include:

  • distorted-vision

    Slightly distorted vision, where straight lines look bent or wavy

  • driving-at-night

    Difficulty driving at night

  • halo-glare

    A halo around lights and ghosting (especially at night)

  • eyestrain


Find an eye doctor who can check for keratoconus and discuss your treatment options during an exam.


  • Zenlens scleral lenses logo

    Specially made scleral contacts for wearers who have keratoconus, or a different cornea shape or size.

    Ask your eye doctor about Zenlens®
  • NovaKone soft contact lenses for keratoconus logo

    The comfort of soft contacts, customized for wearers who have keratoconus.

    Ask your eye doctor about NovaKone®

*An eye exam may be necessary before receiving your free trial, and the free trial does not include the cost of an eye examination or any other professional fees. Certificate entitles the bearer to a 5-day trial of Biotrue® ONEday, a 5- or a 10-day trial of Bausch + Lomb INFUSE®, or one pair of  Bausch + Lomb ULTRA® contact lenses.