Do I need a scleral lens specialist, or can my regular eye doctor fit them?

Who fits scleral lenses

Scleral lenses are prescription contact lenses, so they’re fitted by eye care professionals licensed to prescribe them. Under federal rules, that means an ophthalmologist, an optometrist, or another person permitted under state law, which can include some dispensing opticians.^[6] In practice, you’ll usually meet scleral lenses in three kinds of settings:

• Optometry practices. Many scleral fitters are optometrists (OD). Some general practices fit a few; specialty contact lens practices fit them every day.
• Ophthalmology practices and hospital eye departments. Many corneal and ophthalmology practices have optometrists or contact lens fitters on staff who fit sclerals alongside the surgeons.
• Specialty centers and university clinics. Academic eye centers, optometry school clinics, and specialty programs often see the most complex eyes and may offer treatments such as PROSE or impression-based lenses.

Most fitting happens in community practice, not academic centers. In a 2020 survey of scleral fitters, 76% worked in community practice and 24% in academic settings.^[1]

Why experience matters so much

Fitting a scleral lens is a skill that improves with repetition. In a study following one new fitter through their first 156 fittings, the number of trial lenses needed and the number of reorders both dropped as experience grew, with a clear improvement after the first 60 cases.^[2] It’s a single practitioner, so it can’t predict any one fitter, but it matches what wearers describe.

Experience also varies hugely. Among fitters in the 2020 survey, the median had completed 100 scleral fits, with a range from 5 to 10,000.^[1] Two doctors who both “fit scleral lenses” can have very different depth of experience, so it’s fair to ask.

When your regular eye doctor fits them, and when they refer

A general practice may fit scleral lenses well if the eye is fairly regular, the doctor fits them often, and the follow-up is close to home. They often refer out when:

• the cornea is very irregular, scarred, or has had a transplant or surgery
• you have severe dry eye or another ocular surface disease
• earlier lenses haven’t worked
• they don’t have the measuring tools or lens designs the eye needs

A referral isn’t a brush-off. Many general eye doctors send scleral patients to a fitter they trust and keep seeing you for everything else. Your ophthalmologist or cornea specialist may also keep managing the disease while the fitter manages the lens. Doctors call this co-management, and it’s common. See co-managing scleral lens patients, written for eye doctors.

What the letters mean

FSLS (Fellow of the Scleral Lens Education Society). Optometrists, ophthalmologists, and Fellows of the Contact Lens Society of America who have proven themselves in scleral lens fitting can apply. Fellows are listed on the society’s website as scleral lens specialists.^[3] Candidates must earn 60 points from work primarily about scleral lenses, with at least 20 of those points from case reports; the rest can come from residencies, publications, lectures, and posters.^[4] It’s the most scleral-specific credential you’re likely to see.

FAAO (Fellow of the American Academy of Optometry). A general professional fellowship, not specific to scleral lenses. Clinical candidates are practicing optometrists who submit a plan for 50 points of written work, including at least one case report, and then pass an oral examination.^[5] It signals commitment to advanced clinical standards across optometry.

You may also see “Diplomate” with a section name, such as cornea and contact lenses. That’s an additional advanced credential within the American Academy of Optometry, and the Scleral Lens Education Society counts the cornea and contact lens diplomate toward its own fellowship.^[4]

What credentials don’t tell you. They don’t tell you how often someone fits eyes like yours now, or how they communicate. Many skilled fitters hold none of these. Wearers point out that not every good fitter is listed by any society. Use credentials to build a shortlist, then ask about experience directly.

What wearers say

A common story is a general eye doctor who declined to try scleral lenses, saying the eye was too small, too dry, or too complex, followed by success with a fitter who does them every week. Others found their local optometrist did an excellent job and never needed to go further. Many say the most useful question was simply how many scleral patients the doctor sees, and how many with their condition.

Questions to ask

• How many scleral lens patients do you see, and how many with my condition?
• Do you design the lens yourself, or does someone else in the practice?
• If my eye turns out to be harder than expected, who would you refer me to?
• Will you keep in touch with my cornea specialist or regular eye doctor?

Finding a practice

For where to look, see how do I find a good scleral lens specialist? and use the checklist for choosing a specialist to compare the practices you find.