Being told you are a "glaucoma suspect" is one of the more anxiety-inducing things a patient can hear at the end of an eye test — followed, too often, by a vague instruction to come back in twelve months. For many patients, that wait is not the right clinical response.
What does glaucoma suspect actually mean?
A glaucoma suspect is someone who has one or more risk factors for developing glaucoma — but who does not yet have definitive evidence of optic nerve damage or visual field loss. The label covers a broad range of presentations: an optic disc that looks suspicious on photographs, borderline elevated IOP, a visual field result that is inconclusive, or a significant family history of the condition.
It is not a diagnosis of glaucoma. But it is not something to monitor passively from a distance either.
Why annual optician checks are not enough
Standard optician appointments are not equipped to provide the level of monitoring a glaucoma suspect requires. OCT nerve fibre layer analysis, Goldmann applanation tonometry, corneal pachymetry and reliable automated visual field testing are specialist tools. Without them, early structural changes to the optic nerve can go undetected across multiple annual visits — and by the time a visual field defect becomes apparent to the patient, meaningful damage has already occurred.
What happens at a specialist glaucoma assessment?
At LondonOC, a new glaucoma suspect assessment involves a full review of your risk profile, detailed optic disc imaging with OCT, accurate IOP measurement, corneal thickness assessment, and a baseline visual field test. This gives your consultant a clear picture of where you sit on the risk spectrum — and, critically, a baseline against which future appointments can measure any change.
Many patients seen at LondonOC turn out not to have glaucoma. That certainty is itself valuable. For those who do show early signs of progression, catching it at this stage means treatment can begin before any vision is lost — which is exactly where the advantage of specialist care lies.
When should you seek a referral?
If you have been told you are a glaucoma suspect, have a first-degree relative with glaucoma, or have been given inconclusive results at your last eye test, a referral to a specialist glaucoma clinic is the appropriate next step. You do not need to wait for symptoms — by the time glaucoma causes noticeable vision changes, the window for early intervention has often already passed.