When to seek care immediately
Sudden severe eye pain, headache, nausea, blurred vision, or seeing rainbow halos around lights can indicate acute angle-closure glaucoma — a medical emergency. Call us immediately or go to an emergency room. Do not wait.
Emergency Eye CareTwo very different diseases — one name
Glaucoma refers to a group of conditions that damage the optic nerve — the cable connecting the eye to the brain. The most common form, primary open-angle glaucoma, is almost completely silent in its early and middle stages. Peripheral vision is slowly lost, but because the brain compensates, most people do not notice until a significant amount of nerve fiber is gone. There is no pain, no redness, and no visible change in the eye from the outside. The only way to detect it is through a comprehensive exam that includes optic nerve evaluation, intraocular pressure measurement, and visual field testing. Acute angle-closure glaucoma is different — it presents suddenly and dramatically with severe pain, nausea, and rapid vision changes. This is a medical emergency. Both forms cause permanent, irreversible vision loss — but both can be effectively managed when detected early. Learn more about glaucoma monitoring and treatment at Santé Eyecare.
Glaucoma affects millions — including many who do not know it yet
Certain groups face significantly higher risk and should prioritize regular glaucoma screening, even in the complete absence of symptoms.
Adults over 60
The risk of open-angle glaucoma increases substantially with age. Adults over 60 — and African Americans over 40 — are at particularly elevated risk and should have a comprehensive eye exam that specifically includes optic nerve evaluation and intraocular pressure measurement every one to two years.
Those with a family history of glaucoma
Glaucoma has a strong hereditary component. First-degree relatives of glaucoma patients have a 4–9x higher lifetime risk. If a parent or sibling has glaucoma, you should be screened regularly regardless of age or current symptoms — because you likely will not have any until damage is already done.
High IOP, thin corneas, or high myopia
Elevated intraocular pressure is the primary modifiable risk factor for glaucoma. Thin central corneas, high myopia, and prior eye injuries or steroid use can all increase risk independently. These factors can only be identified through clinical measurement — not through self-assessment or symptom monitoring.
Detecting what you cannot see or feel
Glaucoma cannot be diagnosed from symptoms alone. A complete evaluation requires multiple measurements — each providing a different piece of the picture.
Intraocular Pressure Measurement
We measure the pressure inside your eye at every comprehensive visit. While elevated pressure alone does not confirm glaucoma — and some glaucoma occurs at normal pressure — it remains the most important modifiable risk factor and a critical screening data point for everyone.
Optic Nerve Imaging & OCT
OCT imaging measures the thickness of the retinal nerve fiber layer around the optic nerve with micron-level precision — detecting thinning that can predict glaucoma years before visual field loss becomes measurable. We use it for baseline documentation and ongoing monitoring.
Visual Field Testing
Visual field testing maps your peripheral vision and detects the characteristic patterns of loss associated with glaucoma. It is a key component of glaucoma diagnosis and the primary tool for monitoring whether the condition is stable or progressing over time.
Common questions about glaucoma symptoms
Have a question not answered here? Feel free to call or text our team.
Open-angle glaucoma selectively damages peripheral vision first — the area where the brain is most effective at filling in missing information. By the time central vision is affected, roughly 40% of optic nerve fibers may already be lost. This is why annual screening is essential for at-risk patients. Symptoms are a late finding, not an early warning.
In early to moderate glaucoma, vision loss affects the periphery and may not be consciously noticed. Patients sometimes describe bumping into objects or missing things at the edge of their vision. In advanced stages, the visual field constricts toward a narrow central tunnel. Once lost, this vision does not return — which is why early detection matters so much.
Yes, strongly. Having a parent or sibling with glaucoma increases your lifetime risk by 4–9 times. Other genetic risk factors include African or Hispanic ancestry and certain corneal characteristics measurable only during a clinical exam. If glaucoma runs in your family, regular screening — not waiting for symptoms — is the appropriate response.
The optic nerve damage caused by glaucoma is permanent and cannot be reversed. However, with early detection and appropriate treatment — typically prescription eye drops that lower intraocular pressure, laser treatment, or surgery — progression can be halted or significantly slowed, preserving remaining vision for life. Early treatment produces dramatically better long-term outcomes.
Ocular hypertension means your intraocular pressure is elevated above the statistical norm — but your optic nerve and visual field are currently normal. It is a risk factor, not a glaucoma diagnosis. Some patients with ocular hypertension never develop glaucoma; others do. The decision to treat is made individually based on pressure level, corneal thickness, age, family history, and other factors.
Glaucoma has no symptoms — until it does
Regular screening is the only reliable way to catch it early. Book a comprehensive exam and know where you stand.