The facilities are clean and modern. The staff is pleasant and helpful. Dr. Boutros is courteous, knowledgeable, and thorough.
— Joseph Zmuda
Glaucoma Screening: When and How Often You Should Be Checked
Who Is at Higher Risk for Glaucoma
While anyone can develop glaucoma, certain factors raise your risk substantially. Understanding your personal risk profile helps our team determine the right screening schedule for you.
Glaucoma becomes significantly more common after age 40, and the risk continues to climb with each passing decade. Even without any other risk factors, age alone is a strong reason to begin regular screening.
We recommend that most adults establish a baseline screening by age 40. This gives us a reference point to measure any changes that may develop over the years.
Glaucoma has a well-documented genetic component, meaning it often runs in families. If a parent, sibling, or child has been diagnosed with glaucoma, your own risk is considerably higher than average.
Be sure to share any known family history of glaucoma with our eye doctor, including the type of glaucoma if you know it. This information directly influences how frequently we recommend screening for you.
People of African, Hispanic, and Asian descent face elevated glaucoma risk compared to other populations. African Americans are at especially high risk, often developing the disease at younger ages and experiencing faster progression. People of Asian descent have higher rates of angle-closure glaucoma, a distinct and potentially more sudden form of the condition.
- African Americans are often advised to begin screening by age 35
- Hispanic individuals over age 60 face notably increased risk
- People of Asian descent may require specific testing for narrow drainage angles
- These groups may need more frequent monitoring even without other risk factors
Certain systemic health conditions are associated with higher glaucoma risk. Diabetes can affect blood vessels throughout the body, including those that supply the optic nerve, and has been linked to an increased likelihood of developing glaucoma. Cardiovascular conditions may also affect blood flow to the optic nerve, though the relationship is complex.
Eye-specific conditions such as pseudoexfoliation syndrome, where flaky material accumulates inside the eye, and pigment dispersion syndrome can also raise glaucoma risk considerably. If you have any of these conditions, we will factor them into your screening plan.
Significant nearsightedness changes the structure of the eye in ways that can affect drainage and increase pressure-related risk. Severe farsightedness is often associated with narrow drainage angles, raising the risk of angle-closure glaucoma. Previous blunt eye trauma can damage the eye's drainage system and increase glaucoma risk years after the original injury.
- Severe nearsightedness or farsightedness
- Narrow drainage angles identified on examination
- History of eye trauma or certain prior eye surgeries
- Thin corneas, which affect how pressure readings are interpreted
- Chronic eye inflammation
Regular use of corticosteroid medications, whether as eye drops, oral pills, inhalers, or topical creams, can raise pressure inside the eye in some individuals. This response varies from person to person, but those using steroids long-term for conditions such as asthma, arthritis, or skin disorders deserve closer glaucoma monitoring.
Always let our eye doctor know about any steroid medications you take, including over-the-counter creams and prescription inhalers. We can watch for early signs of pressure elevation and adjust your monitoring schedule accordingly.
How Often You Should Be Screened
There is no single screening schedule that fits every person. Your age, risk factors, and any prior findings all play a role in how often we recommend glaucoma testing.
If you are younger than 40 with no significant risk factors, glaucoma screening is typically recommended as part of your routine comprehensive eye exam, generally every five to ten years. This establishes a baseline that becomes valuable if anything changes later.
If you do have risk factors at a younger age, such as a strong family history, high myopia, or a previous eye injury, we may recommend more frequent screening even before age 40.
Between ages 40 and 54, glaucoma risk begins to climb. For those without additional risk factors, we typically recommend screening every two to four years during this period. Those with one or two risk factors should plan for more frequent visits.
- Every two to four years if no risk factors are present
- Every one to two years with moderate risk factors
- Annually if multiple risk factors are identified
- More frequently if earlier testing reveals borderline findings
Glaucoma becomes more common during this decade, and the stakes of missing early changes are higher. We generally recommend screening every one to three years during this period, with the frequency adjusted based on your individual risk level.
Consistent monitoring in this age range ensures we catch any developing changes at a point when treatment can be most effective at protecting your vision.
After age 65, we recommend glaucoma screening at least every one to two years, even for those with no additional risk factors. Glaucoma is considerably more common in this age group, and regular monitoring is considered an essential part of eye care at this stage of life.
If you have additional risk factors, annual or even more frequent screening may be appropriate. Staying consistent with these appointments is one of the most protective things you can do for your vision.
Patients with several glaucoma risk factors may need screening every six to twelve months regardless of age. Our team will build a customized monitoring schedule based on the complete picture of your eye health and risk profile.
- Annual screening for those with one or two notable risk factors
- Every six months for patients considered high risk
- More frequent follow-up if borderline pressure or optic nerve changes are detected
- Prompt re-evaluation if any screening reveals concerning new findings
What Happens During a Glaucoma Screening
A thorough glaucoma screening involves several different tests, each giving us a different piece of information about your eye health. Together, they allow us to form a complete and accurate picture of your glaucoma risk.
Measuring the pressure inside your eye, called intraocular pressure, is a standard part of every glaucoma screening. We use an instrument called a tonometer, which may direct a brief puff of air at your eye or, in a more precise method, gently contact the surface of your numbed eye.
Elevated pressure is a major risk factor for glaucoma, but it is not the whole story. Some people have high pressure and never develop glaucoma, while others develop glaucoma with pressure in the normal range. We always interpret pressure readings alongside your other findings.
Our eye doctor carefully examines your optic nerve using specialized magnifying lenses, often after dilating your pupils to get the clearest possible view. We look for changes in the size, shape, color, and appearance of the nerve that may indicate glaucoma damage.
- Dilation is painless and typically lasts a few hours
- We compare findings to your previous exams to detect any changes over time
- Photographs of the optic nerve may be taken for detailed documentation and future comparison
This test maps your peripheral vision, which is the area of sight that glaucoma typically affects first. You look into a machine and respond each time you see a light flash in different parts of your visual field. The result is a map showing any areas where your vision is reduced or absent.
Because glaucoma damage to peripheral vision can be invisible in everyday life, this test is one of the most valuable tools we have for catching problems early. Our computerized glaucoma testing is a key part of how we monitor and manage glaucoma for our patients.
We measure the thickness of your cornea using a quick, painless test called pachymetry. Corneal thickness affects how we interpret your pressure readings, since a thicker cornea can make pressure appear higher than it truly is, while a thinner cornea may cause pressure to appear lower than it actually is.
Thinner corneas are also independently associated with a higher risk of glaucoma, making this measurement useful for both accurate interpretation and overall risk assessment.
Optical coherence tomography, commonly called OCT, uses light waves to create detailed, high-resolution images of your optic nerve and the surrounding nerve fiber layer. This technology can detect very subtle structural changes that may not yet be visible during a standard exam.
- OCT scans are completely painless and take only a few minutes
- Images are stored and compared at future visits to track any changes
- This technology can detect early glaucoma damage earlier than older methods alone
- Measurements of nerve fiber thickness help track disease progression over time
The drainage angle is the area inside your eye where fluid flows out. Examining this structure helps us determine whether it is open and functioning normally or narrow and at risk for angle-closure glaucoma. This assessment, called gonioscopy, involves placing a specialized contact lens on your eye after numbing drops are applied.
Identifying a narrow angle is especially important because it can be treated before an acute attack occurs. This exam helps us classify your type of glaucoma risk and plan monitoring or preventive treatment accordingly.
Understanding Your Screening Results
After your screening is complete, our team will review all of your findings together. What comes next depends on what the testing shows and how your results compare to any previous exams.
Normal eye pressure, a healthy-appearing optic nerve, and no visual field defects are reassuring findings. We will let you know when to return based on your age and risk profile, and you simply continue with your regular schedule.
Even consistently normal results are not a reason to skip future screenings. Glaucoma can develop at any time, and only regular testing ensures we catch it at the earliest possible stage.
Mildly elevated eye pressure does not automatically mean you have glaucoma. A condition called ocular hypertension, where pressure is higher than average but no nerve damage has occurred, is common and manageable. However, it does increase your risk, and we will monitor you more closely.
Because pressure varies throughout the day and some tests have a natural learning curve, we often confirm borderline findings with repeat testing before drawing any firm conclusions. This careful approach helps us distinguish true changes from normal variation.
- Follow-up testing may be scheduled within weeks or months of the initial finding
- Additional imaging and visual field tests help us assess your risk more precisely
- Some patients begin preventive treatment even before a confirmed glaucoma diagnosis
- Closer monitoring allows us to detect any progression at the earliest possible point
A glaucoma diagnosis means we have found characteristic optic nerve changes or visual field loss consistent with the disease. Treatment focuses on lowering eye pressure to slow or stop further damage. Initial options often include prescription eye drops that either reduce fluid production inside the eye or improve how fluid drains out of it. Laser procedures that enhance fluid outflow are another option for some patients.
For cases where initial treatments are insufficient or not well tolerated, minimally invasive surgical procedures, including options such as MIGS or goniotomy, may be considered. These decisions are made in consultation with the appropriate surgeon based on your individual situation. Our team will create a personalized treatment plan with clear pressure targets and regular follow-up appointments to monitor your response and make adjustments as needed. The goal is always to preserve the vision you have.
Most glaucoma progresses slowly, but acute angle-closure glaucoma is a medical emergency. This occurs when the drainage angle closes suddenly, causing a rapid and dangerous spike in eye pressure that can cause permanent vision loss within hours if not treated promptly.
Seek immediate care if you experience sudden severe eye pain, a significant headache, blurred vision, rainbow-colored halos around lights, or nausea and vomiting alongside eye symptoms. Do not wait for a scheduled appointment. Go to an emergency room or contact an eye care provider right away.
Frequently Asked Questions
These answers address some of the practical questions patients often have when thinking about glaucoma screening and what to expect from the process.
Most comprehensive eye exams include basic glaucoma screening such as pressure measurement and an optic nerve evaluation. However, the depth of testing varies depending on your age, risk factors, and the specific protocols of the practice. If you have risk factors, we may add more detailed testing such as visual fields and OCT imaging even during a routine visit. If you are unsure what testing your exam will include, it is always worth asking before your appointment.
Most glaucoma tests require no special preparation on your part. It is helpful to bring a complete list of your current medications, including eye drops and supplements, since some can affect intraocular pressure readings. If your pupils will be dilated, plan to have sunglasses available for light sensitivity afterward, and consider whether you will need someone to drive you home since dilation can temporarily blur your close-up vision. You can eat normally and take your regular medications unless we advise otherwise.
Yes, and this is important to understand. Eye pressure can fluctuate throughout the day and across different visits, so a single normal reading does not guarantee it will remain that way. Additionally, a form of the disease called normal-tension glaucoma causes optic nerve damage even when pressure stays within a typical range. Regular screening monitors not just pressure but also your optic nerve structure and peripheral vision, giving us a far more complete picture than any one measurement alone can provide.
Although it is uncommon, children can develop glaucoma. In infants and young children, signs may include excessive tearing, sensitivity to light, or eyes that appear larger than normal. Older children typically do not show obvious symptoms, making a thorough eye examination important if there is a family history of early-onset glaucoma, certain genetic conditions, or a history of eye trauma. A pediatric eye doctor can determine whether your child needs a targeted evaluation.
Open-angle glaucoma, the more common form, occurs when the eye's drainage system becomes less efficient over time despite the drainage angle itself appearing structurally open. It progresses slowly and silently. Angle-closure glaucoma occurs when the drainage angle is physically narrow or blocked, which can either develop gradually or trigger a sudden, painful attack. The distinction matters because these two forms carry different risk factors, require different types of monitoring, and may need different treatment approaches. This is one reason why a thorough screening that includes a drainage angle assessment is so valuable.
Coverage depends on your specific plan and how the testing is billed, whether as preventive screening or diagnostic evaluation. Medicare typically covers annual glaucoma screening for patients considered high risk. We recommend contacting your insurance provider before your appointment to clarify your benefits and understand any out-of-pocket costs. Our team can also help answer questions about what testing is planned so you can check coverage in advance.
Schedule Your Glaucoma Screening at The Eye Center
Our team is here to help you stay ahead of glaucoma with thorough, compassionate care backed by advanced computerized testing technology. We welcome patients from throughout Northern Virginia and take pride in building long-term relationships that allow us to monitor your eye health over time. Whether you are due for a baseline screening or have been managing glaucoma for years, we are ready to partner with you in protecting your vision for years to come. Reach out to us to schedule your next appointment.