What is glaucoma?

Glaucoma is a disease which results in progressive damage to the optic nerve.

The prevalence of this disease has been estimated through various studies to be in the region of 2% of the population. This rate rises considerably with age so that over the age of 80 greater than 12% of the population may be affected.

Often glaucoma goes undetected until significant visual loss has occurred

What evidence is there that treatment is effective for glaucoma?

1. The early manifest glaucoma treatment study has shown that treatment reduces progression of disease
2. The ocular hypertensive treatment study showed that intra-ocular pressure reduction by 20% decreased the risk of disease progression
3. The advanced glaucoma intervention study showed that lower IOP is associated with reduced progression of visual field loss
4. The collaborative normal tension glaucoma study showed that reducing IOP by 30% reduced glaucoma progression

It is therefore very important to pick up evidence of the disease as early as possible to enable doctors to intervene before significant damage has occurred.

Do you know if you should you be screened for glaucoma?

Please answer these questions:

1. Are you over 40 years of age Yes / No
2. Has anyone in your family ever been diagnosed with glaucoma Yes / No
3. Have you ever been diagnosed with hypertension or diabetes Yes / No
4. Is it more than 2 years since you have had a comprehensive eye test Yes / No
5. If the answer to any of these questions is yes then you should be screened.

What tests will be carried out during screening?

1. Visual acuity is a common ocular test routinely carried out by any ophthalmic practitioner
2. Intra-ocular pressure measurements
3. Visual field testing
4. Optic nerve examination and documentation

Will testing always tell me if I have glaucoma?

Often in the early stages of glaucoma it is not possible to definitively determine the diagnosis. In these cases the importance is that regular follow up occurs and treatment intervention if required

Audit Results From Cathedral Eye Clinic Glaucoma Screening

See below the results / outcomes of our last 47 patients VF results:

What were the outcomes?