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    Question

    Can you wear a scleral lens in one eye only?

    Yes. Conditions like keratoconus, a corneal transplant, or a scar often affect one eye more than the other, and plenty of people wear a single scleral lens. Here's how that works day to day.

    By the Scleral Lens Team · Last reviewed October 2, 2026 · 5 published sources cited

    The short answer

    Yes. If only one eye has an irregular cornea or surface disease, your fitter may fit just that eye. One-eye fittings are common: in a large Dutch specialty practice, about 2,600 of the 6,635 patients in its records were fitted in one eye only. Your other eye might need nothing, glasses, or an ordinary contact lens. Ask your fitter how your two eyes will work together, and what that means for backup glasses.

    Key points

    • One-eye scleral lens fittings are common.
    • The other eye may need nothing, glasses, or a different contact lens.
    • Contact lenses can help when the two eyes need very different prescriptions.
    • Protect your better eye: sports eyewear matters more if one eye is weaker.
    • The safety rules apply in full, even with only one lens.

    Yes, and it’s common

    Many of the conditions scleral lenses treat can affect one eye much more than the other: a corneal transplant in one eye, a corneal scar from an injury or infection, or keratoconus that’s more advanced on one side. If only one eye needs it, your fitter can fit only that eye.

    A study of all scleral lens orders at a large specialty practice in the Netherlands, from 2016 to 2022, counted 2,594 one-eye (unilateral) cases among 6,635 patients.[1] That’s one practice’s experience, but it shows one-eye fitting is routine, not unusual.

    What happens with the other eye

    It depends on that eye:

    • It sees well on its own. Then it may need nothing.
    • It needs ordinary correction. Glasses or a regular soft or rigid contact lens may do the job.
    • It’s mildly affected. Your fitter may hold off on a scleral lens for now and watch it.

    If you wear different kinds of lenses in each eye, you’ll likely have different care products too. Keep them clearly labeled, and don’t mix solutions between lens types unless your fitter says you can. See saline and solutions.

    Your two eyes working together

    When the two eyes need very different prescriptions, glasses can make the image in each eye a different size, which some people find hard to combine. In a small 1988 study of 18 people with unequal prescriptions, correcting with contact lenses kept that size difference to a minimum.[2] That was an older, small study, but it’s one reason a contact lens in one eye can work better than glasses.

    Scleral lenses may also help the eyes team up. In a small study of 31 people with keratoconus, more of those fitted with scleral lenses reached good central depth perception after fitting than those fitted with smaller rigid lenses.[3]

    Some people still need time to adjust, especially if the lens transforms an eye that was much worse. Tell your fitter about eye strain, headaches, or double vision.

    Backup glasses with one scleral lens

    Keep a backup pair of glasses with a current prescription.[5] With an irregular cornea, glasses usually can’t match the scleral lens: in a study of 157 keratoconus eyes, best-corrected vision was much better with scleral lenses than with glasses.[4] On a day without your lens, you may rely mostly on your other eye. Plan around that, for example for driving.

    Protect your better eye

    If one eye sees much better than the other, that eye is doing a lot of the work. Wear protective eyewear for sports and risky jobs. See scleral lenses for sports. If your stronger eye is your only good eye, have a specific conversation with your eye doctor about risk.

    The rules don’t change

    One lens still means the full routine: clean and disinfect every night, never sleep in it, keep water away, and keep your follow-up visits. The daily routine guide has the steps.

    Common questions

    Will my eyes feel unbalanced with a lens in only one?

    Some people notice a difference at first, especially if the lens greatly improves an eye that was much worse. Tell your fitter if you have eye strain, headaches, or double vision. They can check how your two eyes are working together.

    Can I wear a soft contact lens in my other eye?

    Often, yes, if that eye needs correction. You'll then have two different lens types with different care products, so ask your fitter to write down which solution goes with which lens, and keep them in separate, labeled cases.

    Should I worry about my good eye developing the same condition?

    Some conditions, like keratoconus, can affect both eyes unevenly over time. That's one reason to keep regular eye exams for both eyes, not just the one with the lens.

    Keep reading

    Can you wear glasses over scleral lenses?

    Yes. Glasses sit in front of your eyes and don't touch the lens, so you can wear them over scleral lenses. The most common reason is reading glasses: from the early to mid-40s, most people gradually lose the ability to focus up close, and a standard scleral lens corrects distance vision only. Glasses can also add a small correction your lens doesn't cover, and safety glasses or sunglasses work over them too.

    Can you play sports in scleral lenses?

    Usually, yes. Many people exercise and play sports in scleral lenses. But a contact lens is not protection: if your sport carries any risk of a ball, racket, stick, or elbow to the face, wear sports eyewear that meets a recognized safety standard over your lenses. Take your lenses out for swimming and water sports, and keep a small kit in your bag in case a lens needs to come out.

    How often should you see your scleral lens fitter?

    As often as your fitter recommends: there's no one schedule for everyone. Expect several visits during the fitting itself, then regular check-ups once your lenses are settled. Keep them even when your lenses feel fine, because some problems, like corneal swelling, can develop without symptoms. Book sooner if your vision, comfort, or the look of your eye changes, and call the same day for pain, worsening redness, light sensitivity, or vision that doesn't clear.

    Sources

    1. van Ooik DJ, Soeters N, Krijgh WAC, Visser ES. Scleral lens prescribing trends in a large specialty contact lens practice in the Netherlands. Cont Lens Anterior Eye. 2025;48(5):102426. doi:10.1016/j.clae.2025.102426 pubmed.ncbi.nlm.nih.gov
    2. Winn B, Ackerley RG, Brown CA, Murray FK, Prais J, St John MF. Reduced aniseikonia in axial anisometropia with contact lens correction. Ophthalmic Physiol Opt. 1988;8(3):341-344. doi:10.1111/j.1475-1313.1988.tb01064.x pubmed.ncbi.nlm.nih.gov
    3. Dashti Rahmatabadi Z, Naroo SA, Hatami F, et al. The impact of contact lenses on binocular vision in patients with keratoconus. J Optom. 2026;19(3):100610. doi:10.1016/j.optom.2026.100610 pubmed.ncbi.nlm.nih.gov
    4. Fuller DG, Wang Y. Safety and efficacy of scleral lenses for keratoconus. Optom Vis Sci. 2020;97(9):741-748. doi:10.1097/OPX.0000000000001578 pubmed.ncbi.nlm.nih.gov
    5. U.S. Food and Drug Administration. Everyday Eye Care (contact lenses). Content current as of December 4, 2023. fda.gov

    Last updated October 2, 2026. Found an error or a newer study? Let us know and we'll correct the page.