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Early-onset glaucoma
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Condition

Early-onset glaucoma

Early-onset glaucoma is a group of hereditary eye disorders appearing before age 40 that progressively damage the optic nerves, potentially leading to vision loss and blindness. Driven primarily by genetic variants, the condition is characterized by increased intraocular pressure and structural drainage abnormalities.

Overview

Glaucoma is a group of eye disorders in which the optic nerves connecting the eyes and the brain are progressively damaged. This damage can lead to reduction in side (peripheral) vision and eventual blindness. Other signs and symptoms may include bulging eyes, excessive tearing, and abnormal sensitivity to light (photophobia). The term "early-onset glaucoma" may be used when the disorder appears before the age of 40.

In most people with glaucoma, the damage to the optic nerves is caused by increased pressure within the eyes (intraocular pressure). Intraocular pressure depends on a balance between fluid entering and leaving the eyes. Usually glaucoma develops in older adults, in whom the risk of developing the disorder may be affected by a variety of medical conditions including high blood pressure (hypertension) and diabetes mellitus, as well as family history. The risk of early-onset glaucoma depends mainly on heredity.

Types of Early-Onset Glaucoma

Primary Congenital Glaucoma

Structural abnormalities that impede fluid drainage in the eye increase ocular pressure. These abnormalities may be present at birth and usually become apparent during the first year of life. Such structural abnormalities may be part of a genetic disorder that affects many body systems, called a syndrome. If glaucoma appears before the age of 3 without other associated abnormalities, it is called primary congenital glaucoma.

Juvenile Open-Angle Glaucoma

Other individuals experience early onset of primary open-angle glaucoma, the most common adult form of glaucoma. If primary open-angle glaucoma develops during childhood or early adulthood, it

Frequently Asked Questions

In infants and young children, look for cloudy or bulging eyes, excessive tearing, eye redness, or a visible halo around lights. In older children and teens, symptoms such as blurred vision, loss of peripheral vision, eye pain, or headaches may indicate increased intraocular pressure. If any of these occur, schedule an eye exam with an ophthalmologist as soon as possible.
Genetic testing panels can identify mutations in genes such as CYP1B1, MYOC, and WDR36 that are linked to congenital or juvenile glaucoma. Knowing the specific mutation helps clinicians predict disease severity, choose targeted therapies, and counsel family members about inheritance risk. Some mutations may respond better to certain medications or surgical approaches.
Yes. Regular physical activity, maintaining a healthy weight, limiting caffeine, and avoiding prolonged screen time can reduce ocular pressure. Adequate sleep and stress management also support eye health. Encourage a balanced diet rich in omega‑3 fatty acids and antioxidants, and ensure the child follows prescribed eye drops or medications consistently.
With early detection and consistent treatment, many patients can preserve vision, but the disease often progresses slowly. Most clinicians recommend eye exams every 3–6 months for the first few years, then annually if stable. Adjustments to therapy are made based on intraocular pressure readings and optic nerve imaging.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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