22/01/2026
Glaucoma Awareness Month
January is Glaucoma Awareness Month.
So what is glaucoma? The definition is that glaucoma is a progressive neuropathy, usually involving raised intraocular pressure. Or in English: loss of vision caused by damage to the nerve due to too high pressure.
There are a number of types of glaucoma, the most common ones are Chronic Open Angle Glaucoma and Acute Closed Angle Glaucoma.
So how would I know if I have glaucoma? Of the two most common types, the acute form is the one that people will report having because it comes on very suddenly and causes severe pain plus blurred vision. Because of the sudden changes to the vision people will never ignore this type of glaucoma.
The other common type is Chronic Open Angles Glaucoma. This is sometimes referred to a the Silent Thief of Sight. Eventually it does cause symptoms because the vision is lost. However, in the earlier stages the patient is unaware of it and for this reason we expect to find cases long before the patient loses vision. We screen for it routinely during each and every eye examination and do more tests to check for it from the age of 40.
Treatment? Screening for a disease is only really worthwhile if you can treat that disease. Fortunately glaucoma is a very treatable condition but treatment can only arrest the condition, not restore vision already lost. That is why it is so important to find the problem before the patient has lost any significant vision. Treatment is under the care of an ophthalmologist (medical doctor specialising in eyes) and involves eye drops or surgery, or increasingly often minimally invasive laser surgery.
Some groups of people are more likely to develop glaucoma but I have always had a policy that we screen for it in every eye examination, even for low risk patients.
Here you will find a video from RNIB.
January is Glaucoma Awareness Month. Glaucoma can affect anyone, and the most common type of glaucoma doesn’t hurt and has no symptoms until it’s quite advan...