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Living with Microcornea-glaucoma-absent frontal sinuses syndrome

A rare inherited syndrome with small corneas, glaucoma, and frontal sinuses (air spaces in the forehead) that did not form.

Understanding Microcornea-glaucoma-absent frontal sinuses syndrome

Microcornea-glaucoma-absent frontal sinuses syndrome is a rare inherited syndrome that affects how the eyes and forehead develop before birth.

This syndrome combines small corneas (microcornea), glaucoma, and underdeveloped frontal sinuses. Thick skin on the palms and a bony bump on the roof of the mouth (torus palatinus) have also been reported. Signs can be seen from birth to childhood. GARD notes there have been no further descriptions in the medical literature since 1995.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Small corneas (microcornea)
  • Glaucoma
  • Vision impairment
  • Frontal sinuses that did not form
  • Thick skin on the palms and soles
  • Flat, round face

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 and genetic 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); Genetic specialists (geneticists)
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 BrightFocus Foundation
  • 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
How often should eye pressure be checked for glaucoma?
Which eye specialist should follow my child's vision?
Is genetic testing available for this syndrome?

Quick facts

Symptoms usually startfrom Birth to Childhood
InheritanceAutosomal Dominant

Changes in genes (also called variants) cause this syndrome. It is autosomal dominant, which means a changed copy of the gene from one parent can be enough to cause it.

Genetic

Patient organizations

Source: NIH GARD · Microcornea-glaucoma-absent frontal sinuses syndromeGARD ID 3637 · 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 Microcornea-glaucoma-absent frontal sinuses syndrome.

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