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Living with Superior limbic keratoconjunctivitis

A long-lasting eye condition that causes burning, redness, and irritation, usually without losing vision.

Understanding Superior limbic keratoconjunctivitis

Superior limbic keratoconjunctivitis (SLK) is a chronic, recurring eye condition that affects the upper part of the eye's clear covering.

It affects the clear layer that covers the eyeball and lines the eyelids, and the area above the cornea. Burning, redness, and irritation develop slowly over 1 to 10 years. Vision usually stays intact. The cause is unknown. It may relate to loose conjunctiva, linked to factors such as thyroid eye disease, tight upper eyelids, or prominent eyeballs.

Signs & symptoms

Symptoms vary from person to person. GARD describes these:

  • Burning in the eye
  • Redness
  • Irritation

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include eye disease specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Eye disease specialists (ophthalmologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Should my thyroid be checked?
What treatments ease burning and irritation?
If I wear soft contact lenses, could my solution be a factor?

Quick facts

GARD says the cause is unknown. It may follow looseness of the eye's covering, which can be linked to thyroid eye disease, tight upper eyelids, or prominent eyeballs.

Also known as: slk; slk - superior limbic keratoconjunctivitis; superior limbal keratoconjunctivitis; superior limbic keratitis; theodore superior limbic keratoconjunctivitis; theodore syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Superior limbic keratoconjunctivitisGARD ID 10940 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Superior limbic keratoconjunctivitis.

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