Glaucoma Diagnosis & Management in Bluffton & Hilton Head

Glaucoma is a group of conditions that damage the optic nerve, the cable of roughly a million fibres carrying what you see from your eye to your brain. As fibres are lost, blind spots develop in your side vision.

It is often called the silent thief of sight, and the phrase is earned. The damage begins in the periphery, it is painless, and the brain is remarkably good at filling in missing information from the other eye and from surrounding detail. People routinely lose a substantial share of their peripheral vision before noticing anything at all.

The vision lost to glaucoma does not come back. But glaucoma found early and managed consistently very rarely causes serious impairment. Almost everything about how this goes depends on when it is caught — which is an argument for regular comprehensive eye exams rather than waiting for a symptom.

Types of glaucoma

Open-angle glaucoma is by far the most common. The eye's drainage system becomes gradually less efficient, pressure rises slowly, and the optic nerve is damaged over years. No pain, no early symptoms.

Angle-closure glaucoma occurs when the drainage angle is blocked suddenly. Pressure spikes within hours, and it is genuinely painful — severe eye pain and headache, nausea and vomiting, blurred vision, halos around lights, a red eye. This is a medical emergency. If that describes you, call us immediately or go to an emergency room; sight can be lost in a day.

Normal-tension glaucoma damages the optic nerve at pressures within the normal range, which is one reason a pressure check alone is not a sufficient screening.

Secondary glaucoma develops as a consequence of something else — diabetes, injury, inflammation, advanced cataract, or long-term steroid use.

Who is at higher risk

• Anyone over sixty
• A family history of glaucoma — one of the strongest predictors there is, and worth knowing about your parents and siblings
• People of African or Hispanic descent, who develop open-angle glaucoma earlier and more often
• Elevated eye pressure
• Diabetes
• Significant nearsightedness or farsightedness
• Previous eye injury or long-term steroid use
• Thin corneas

If glaucoma runs in your family, tell us. It changes how closely we watch and how early we start.

How glaucoma is tested for

No single test diagnoses glaucoma. The diagnosis comes from a picture built out of several, compared over time.

Eye pressure (tonometry). A measurement of the pressure inside the eye. Important, but not sufficient on its own — pressure fluctuates, and normal-tension glaucoma exists.

Optic nerve examination. We look directly at the nerve head for the cupping and thinning that indicate lost fibres. Changes here are often the earliest reliable sign.

Visual field testing. You look at a central point and indicate when you see lights appear in your periphery. It maps blind spots you cannot detect yourself, and it is the test that shows function rather than structure.

Corneal thickness (pachymetry). Corneal thickness affects how pressure readings should be interpreted, and thin corneas are an independent risk factor.

Optic nerve imaging. Scans measuring the thickness of the nerve fibre layer can detect loss before it appears in a visual field test.

Treatment

Every current treatment works by lowering the pressure inside the eye. That is the only intervention proven to slow the disease, and it works — but it must be maintained.

Eye drops are almost always where treatment begins, and for a great many patients they are the whole of it. Different classes work by reducing fluid production or improving drainage.

The thing we most want to say about drops: they only work if they are used, every single day, indefinitely. Because glaucoma causes no symptoms, and because drops do not make you feel any different, it is very easy to drift. Patients who stop drops usually feel entirely fine — right up until the point where a visual field test shows what has been lost. If cost, side effects, or simply remembering are a problem, please tell us. There are almost always alternatives, and that conversation is far more useful than a quiet lapse.

Laser treatment. Selective laser trabeculoplasty (SLT) improves the eye's own drainage. It is performed in a few minutes, and it is increasingly used earlier in treatment rather than only after drops fail.

Surgery. When drops and laser are not enough, procedures — including the minimally invasive options often performed alongside cataract surgery — can create new drainage pathways.

Monitoring never really stops

Glaucoma is managed, not cured. Even when pressure is well controlled and your vision is stable, the monitoring continues — typically every three to six months depending on severity, with visual fields and imaging repeated at intervals.

That may feel like a lot of appointments for a condition you cannot feel. It is the point. The whole strategy rests on catching change while there is still something to protect, and the only way to see change is to keep measuring.