Can I wear scleral lenses after a corneal ulcer?

What a corneal ulcer leaves behind

A corneal ulcer is an open sore on the cornea that goes deeper than the surface layer. It’s a potentially sight-threatening emergency. Even with prompt treatment, it can leave complications, including corneal scarring.^[1] Contact lens wear is one of the common risk factors, along with eye injury, dry eye, and problems with the eyelids. Diabetes and a weakened immune system are among the risk factors that affect the whole body.^[1]

Scarring affects vision in two ways:

• It makes the surface uneven. Healing remodels the tissue and can leave bumps, dips and irregular astigmatism.^[2]
• It can make the cornea hazy. A scar can be cloudy rather than clear. If the haze sits in the center of your vision, it blocks or scatters light.^[2]

How a scleral lens helps a scarred cornea

A scleral lens vaults over the cornea, and the saline you fill it with sits between the lens and the scar. The fluid fills in the uneven surface, and the smooth front of the lens takes over as the eye’s focusing surface. A 2025 review describes scleral lenses as highly effective at smoothing a scarred cornea and neutralizing irregular astigmatism.^[2]

What a lens can’t do is make a hazy scar clear. The same review notes that haze in the visual axis remains a challenge that can limit how much vision improves.^[2] So the result depends on where your scar is and how dense it is. Ask your fitter to estimate how much of your blur comes from unevenness, which a lens can address, and how much from haze, which it can’t.

Scarring is a common reason people are fitted. In one clinic’s series of 49 eyes fitted with scleral lenses, 7 had irregular astigmatism from a corneal scar.^[3] More on scleral lenses for corneal scarring.

When to start: your eye doctor’s call

We couldn’t find any published rule for how long to wait after an ulcer before wearing a scleral lens, and the right timing depends on the cause, depth and healing of the ulcer, and on any medicines you’re still using. Your eye doctor will decide when the eye is ready. Until then, keep any lenses and the case from the time of the infection, as the FDA advises, so your doctor can examine them if needed.^[5]

Lowering the risk of another ulcer

Keratitis can come back. In a study of 1,303 people treated for corneal infection at one eye hospital, 17.88% had a recurrence. Contact lens use was linked to higher odds of recurrence (an odds ratio of 2.37), as was using lenses inappropriately.^[4] That study looked at all types of keratitis and didn’t separate scleral lenses from other lenses.

If your ulcer was linked to a contact lens, go over your routine with your fitter before restarting. The FDA’s advice includes:^[5]

• Rub and rinse your lenses as directed by your eye care professional.
• Never top off old solution in the case. Discard it after each use.
• Keep all water, including tap, bottled and distilled water, away from your lenses. Remove them before swimming.
• Replace your case every 3 months or as directed.

Scleral lenses have their own care steps, including preservative-free saline for filling. See cleaning and disinfecting, saline and solutions and are scleral lenses safe?.