Pediatric Glaucoma

Congenital & Childhood Glaucoma

Glaucoma is a group of eye diseases that can damage the optic nerve, the structure that carries visual information from the eye to the brain.

Although glaucoma is much more common in adults, babies and children can develop glaucoma too. Pediatric glaucoma is rare, but it can be serious. In young children, elevated eye pressure can damage the optic nerve and may also physically stretch the developing eye, causing the cornea to enlarge or become cloudy. The signs can look very different from adult glaucoma.

Pediatric glaucoma care requires specialized treatment because children are not simply small adults. The disease itself behaves differently, the examination can be more challenging, surgical treatment often differs and preserving vision may also require treatment for amblyopia, refractive error or strabismus. Our physicians care for babies born with glaucoma, children who develop glaucoma later, and children at increased risk because of another eye disorder, medical condition, medication, trauma or previous eye surgery. That includes glaucoma associated with conditions such as:

Congenital abnormalities of the front of the eye
Aniridia
Axenfeld-Rieger syndrome
Sturge-Weber syndrome
Neurofibromatosis
Uveitis
Eye trauma
Steroid use
Previous pediatric cataract surgery

Not every child with one of these conditions will develop glaucoma, but some require lifelong surveillance because the risk can remain even when the eye initially appears healthy.

Our role is not simply to obtain an eye-pressure number. We evaluate pressure, corneal size and clarity, the drainage angle, optic nerve appearance, eye growth, refractive error and visual development together to determine whether glaucoma is present, whether it is progressing and how aggressively it needs to be treated.

What Is Pediatric Glaucoma?

Inside the eye, clear fluid is constantly produced and drained. When that fluid does not drain properly, pressure inside the eye can rise. Elevated pressure can damage the optic nerve and cause permanent vision loss. But pediatric glaucoma is more complicated than simply having “high eye pressure.” A child’s diagnosis is based on the entire examination, including:

Intraocular pressure
Optic nerve appearance
Corneal findings
Eye size and growth
Changes in refractive error
Drainage-angle anatomy
Visual field testing when age appropriate
Imaging such as OCT when the child is able to participate

Young eyes can physically stretch under elevated pressure in a way adult eyes generally do not. That is why babies with congenital glaucoma may develop larger eyes, enlarged corneas or cloudy corneas.

What Is Primary Congenital Glaucoma?

Primary congenital glaucoma is a form of glaucoma caused by abnormal development of the eye’s drainage system. It may be present at birth or become apparent during infancy or early childhood. The drainage structures do not allow fluid to leave the eye normally, causing pressure to rise. Primary congenital glaucoma usually occurs without another eye or systemic developmental abnormality. It is the most common form of primary childhood glaucoma. Some cases occur in families or have an identifiable genetic component, while others occur without a known family history.

What Are the Symptoms of Congenital Glaucoma in a Baby? Congenital glaucoma often looks very different from glaucoma in an adult. The classic symptoms include:

Excessive tearing
Sensitivity to light
Frequent squeezing or closing of the eyelids
A cloudy or hazy cornea
An eye or cornea that appears unusually large

The combination of tearing, light sensitivity and eyelid squeezing is particularly characteristic of congenital glaucoma. Parents may describe a baby who constantly waters, dislikes bright light or keeps the eyes closed.

Will Eye Drops Treat Congenital Glaucoma? Eye-pressure-lowering medication can be useful, but it often plays a different role in babies with primary congenital glaucoma than it does in adults. Drops may be used:

Before surgery
While surgery is being planned
After surgery if additional pressure lowering is needed
As part of treatment for secondary or juvenile glaucoma

Some medications used commonly in adults require special consideration in young children because of their potential systemic effects. Medication choice and dosing therefore need to be specifically managed for the child.

How is Congenital Glaucoma Treated? Unlike many forms of adult glaucoma, primary congenital glaucoma is primarily treated with surgery. Medication can sometimes temporarily lower pressure or supplement surgical treatment, but surgery is usually the main treatment because the underlying problem is abnormal drainage anatomy.

The goal is to improve the eye’s ability to drain fluid and lower pressure enough to protect the optic nerve and developing visual system.

What Is Juvenile Glaucoma?

Glaucoma can also develop later in childhood or adolescence. Juvenile open-angle glaucoma is generally more similar to adult open-angle glaucoma than congenital glaucoma.

Unlike babies with congenital glaucoma, older children may have few or no symptoms. Some are diagnosed because they fail a vision screening, develop blurry vision or are found to have elevated pressure or optic nerve changes during an examination. Juvenile glaucoma can also be associated with a family history of glaucoma.

Because children may not notice gradual peripheral vision loss, the absence of complaints does not necessarily mean the disease is absent.

What Is Secondary Pediatric Glaucoma?

Not all childhood glaucoma is primary congenital glaucoma. Secondary glaucoma develops because of another eye condition, medical condition, injury, medication or previous surgery. Examples include glaucoma associated with:

Uveitis
Previous cataract surgery
Eye trauma
Steroid treatment
Aniridia
Axenfeld-Rieger syndrome
Sturge-Weber syndrome
Other congenital or developmental abnormalities of the eye

The underlying cause matters because it can influence both the behavior of the glaucoma and the treatment that is most appropriate.

Glaucoma After Pediatric Cataract Surgery: Children who undergo cataract surgery, especially surgery during infancy, have an increased lifelong risk of glaucoma. Importantly, glaucoma may develop months or years after an otherwise successful cataract operation. AAPOS notes that roughly one in five babies undergoing cataract surgery during the first six months of life may develop glaucoma within 10 years.

That is why Children’s Eye Care continues monitoring children after pediatric cataract surgery long after the cataract itself has been treated.

Related: Pediatric Cataracts

How Is Congenital & Childhood Glaucoma Diagnosed?

Diagnosing glaucoma in children requires a comprehensive pediatric eye examination. Depending on the child’s age and ability to cooperate, evaluation may include:

Measurement of eye pressure
Measurement of corneal diameter
Evaluation of corneal clarity and thickness
Examination of the drainage angle
Measurement of eye length
Refraction
Careful examination of the optic nerve
Optic nerve photography
OCT imaging
Visual-field testing in older children

What Surgery Is Used for Congenital & Childhood Glaucoma?

The appropriate operation depends on the type of glaucoma, the anatomy of the child’s eye, previous treatment and how well pressure is controlled. For primary congenital glaucoma, initial surgery often focuses on the eye’s natural drainage angle.

Goniotomy: The surgeon uses a specialized view of the drainage angle and creates an opening within the abnormal drainage tissue to improve fluid outflow.
Trabeculotomy: opens the eye’s natural drainage pathway but approaches the drainage system differently. Both goniotomy and trabeculotomy are established angle surgeries for primary congenital glaucoma.
Glaucoma Drainage Devices and Other Surgery: If angle surgery does not provide adequate pressure control, or if the child’s glaucoma has a different underlying cause, other procedures may be required. These can include:
- Glaucoma drainage implants or tube shunts
- Trabeculectomy in selected cases
- Cyclophotocoagulation or other procedures that reduce fluid production

Some children require more than one glaucoma procedure over the course of treatment. This is why pediatric glaucoma care requires experience not just with one operation, but with long-term surgical decision-making as the child’s disease and eye change over time.

Why Might My Child Need More Than One Glaucoma Surgery?

Pediatric glaucoma can be a lifelong disease. Some children obtain excellent pressure control after one operation. Others require additional surgery because the first procedure does not lower pressure enough, pressure rises again as the eye changes or another drainage approach becomes necessary.

That does not necessarily mean that an earlier procedure “failed” in the ordinary sense. Sometimes a procedure successfully controls pressure for years before the disease changes. The treatment goal is always the same: maintain pressure at a level that protects the optic nerve and gives the child the best opportunity to preserve vision.

Does Glaucoma Surgery Restore Vision That Has Already Been Lost?

Glaucoma treatment is primarily designed to prevent additional damage. Once optic nerve tissue has been permanently damaged, surgery or medication cannot recreate it. That is one reason early diagnosis and pressure control matter. But visual outcome in children depends on more than glaucoma alone. A child may also have:

Corneal scarring
Refractive error
Amblyopia
Strabismus
Nystagmus
Other congenital abnormalities

Those conditions may require their own treatment even after eye pressure is controlled.

Pediatric Glaucoma and Amblyopia

Controlling eye pressure is only one part of protecting a child’s vision. Glaucoma can create significant differences in vision between the eyes through optic nerve damage, corneal clouding, myopia, astigmatism or other changes. If the brain begins favoring one eye, amblyopia may develop.

Glasses, patching or other amblyopia treatment may therefore be necessary alongside glaucoma care. Glaucoma treatment protects the eye from pressure-related damage. Amblyopia treatment helps the developing brain use the vision that remains available.

Related: Amblyopia | Patching Help for Parents

Why Does My Child Need Lifelong Follow-Up?

Because successful glaucoma treatment today does not guarantee that the disease can never change. As children grow:

Eye anatomy changes
Pressure can change
Glasses prescriptions change
Optic nerve testing becomes more sophisticated
Visual-field testing becomes possible
Previous surgery may require continued monitoring
New treatment may occasionally become necessary

Follow-up may become less frequent when glaucoma is stable, but ongoing surveillance remains important.

Pediatric glaucoma care is measured in years, not simply in the weeks surrounding an operation.

What Is the Long-Term Outlook for a Child With Glaucoma?

The outlook varies widely. Some children with congenital glaucoma who are diagnosed and treated early develop very useful vision. Others have permanent visual limitations because of optic nerve damage, corneal scarring, amblyopia or associated eye abnormalities. Factors that influence outcome include:

Severity at diagnosis
Age of onset
How much optic nerve damage has occurred
Whether the cornea remains clear
How well eye pressure can be controlled
Whether one or both eyes are affected
Associated eye or systemic abnormalities
Amblyopia and refractive treatment
Long-term adherence to follow-up

Our responsibility is both to treat the glaucoma aggressively enough to protect vision and to give families a realistic understanding of their child’s individual visual potential.