Glaucoma Risk Factors: Family History, Age and More

While anyone can develop glaucoma, certain groups face a substantially higher risk. Understanding where you fall on the risk spectrum helps determine the urgency and frequency of your screening schedule.

Family history is one of the strongest predictors of glaucoma risk. If you have a first-degree relative, such as a parent, sibling, or child, with glaucoma, your risk of developing the condition is four to nine times higher than someone without a family history. Primary open-angle glaucoma, the most common form, has a well-established hereditary component, and several genes have been identified that increase susceptibility. If glaucoma runs in your family, sharing this information with your eye doctor is one of the most important things you can do.

Glaucoma risk increases significantly with age, particularly after age 40. People over 60 are approximately six times more likely to develop glaucoma than younger adults. The drainage system within the eye gradually becomes less efficient over time, which can lead to increased pressure and optic nerve damage. This is why consistent screening becomes increasingly important as you get older.

Certain ethnic groups carry a disproportionately higher risk of developing glaucoma. African Americans are six to eight times more likely to develop glaucoma than Caucasians, tend to develop it at a younger age, and often experience faster disease progression. Hispanic and Latino populations also face elevated risk, particularly after age 65. People of Asian descent have a higher prevalence of angle-closure glaucoma. These disparities underscore the importance of culturally informed screening guidelines and earlier intervention for high-risk populations.

Significant nearsightedness (myopia) is an independent risk factor for glaucoma. People with high myopia have elongated eyeballs and thinner optic nerve structures, which may make the nerve more vulnerable to pressure-related damage. If you are highly nearsighted, regular glaucoma evaluations are especially important even if your eye pressure falls within the normal range.

The first step is scheduling a comprehensive eye exam that includes an evaluation of your optic nerve, eye pressure measurement, and a review of your personal and family medical history. If you are 40 or older, have a family history of glaucoma, or belong to a higher-risk ethnic group, this evaluation is especially important. Our team can help determine the right screening schedule for your individual risk level.

Early detection gives you the best chance of preserving your current level of vision. While any existing damage from glaucoma cannot be reversed, treatment initiated early can slow or stop further progression in the vast majority of cases. Many patients diagnosed early maintain functional vision throughout their lives with consistent treatment and follow-up.

Glaucoma screening is safe, non-invasive, and painless. The most common component, tonometry, involves a gentle measurement of eye pressure using either a puff of air or a small instrument that briefly touches the eye surface. Dilating drops used during the exam may temporarily blur your vision and increase light sensitivity for a few hours, but this effect resolves on its own and is not harmful.

Both approaches work hand in hand. Knowing your risk factors helps your eye doctor determine how frequently you should be examined and which tests to prioritize. A patient with a strong family history of glaucoma and other risk factors, for example, may need annual monitoring with advanced imaging, whereas a low-risk patient may require less frequent visits. Risk factor awareness personalizes your care and makes your exams more targeted.

The benefits of early detection are not something you will feel day to day, because glaucoma treatment works by preventing future vision loss rather than restoring what has already been lost. The difference becomes apparent over years and decades. Patients who are identified early and treated consistently tend to maintain significantly more visual function than those diagnosed at a more advanced stage.

If you have several glaucoma risk factors, eye care experts generally recommend more frequent comprehensive exams, potentially as often as every 6 to 12 months. These visits may include optical coherence tomography (OCT) scans, visual field testing, and gonioscopy to evaluate the drainage angle of your eye. Staying consistent with these appointments is the most reliable way to catch changes early and adjust treatment if needed.