04/10/2021
Glaucoma
Glaucoma is the name given to a group of related eye conditions that result in damage to the optic nerve that connects the eye to the brain. Usually a result of the clogging of the eye’s drainage system, causing a build-up of fluid that elevates pressure inside the eye, it can lead, as the condition develops, to an irreversible loss of vision if it’s not diagnosed and treated in its early stages. Glaucoma usually affects both eyes, but as pressure generally increases in one eye first, it does not necessarily develop in both eyes at the same time.
What are the symptoms of glaucoma?
With most types of glaucoma, symptoms are often not obvious until the later stages of development, when noticeable vision loss occurs. Open-angle and chronic glaucoma, for example, develop very slowly which can make it difficult to notice symptoms when it’s in its early stages. Both conditions can damage your peripheral vision (side vision) and then through progression your central vision, so it’s important that it’s diagnosed and treated as early as possible. As these types of glaucoma can be picked up during a routine eye test, it’s crucial that you get your eyes checked at least every two years, if not every year.
Acute angle-closure glaucoma, which is a different form of glaucoma than those described above, is a condition that develops rapidly and often has very severe symptoms. These can include extreme pain in the eye or forehead, headaches, redness of the eye, decreased vision or blurred vision, nausea, and vomiting. If you notice any of these symptoms, you should go to your nearest eye casualty unit or A&E immediately.
A further type of glaucoma, known as secondary glaucoma, can occur as a result of an existing eye injury or eye condition such as uveitis, symptoms generally tend to develop slowly. As your peripheral vision is affected first, this can often go unnoticed for a long period of time as one eye can compensate for the other.
How is glaucoma treated?
If you have been diagnosed with glaucoma or are at risk of developing glaucoma, it’s crucial that your condition is monitored regularly. While it is not possible to reverse any vision loss, treatment can prevent your vision from deteriorating further. When suffering from glaucoma, a majority of patients will benefit from a daily application of eye drops, while some might need a non-invasive laser procedure and a minority may need another form of glaucoma surgery to reduce the pressure building in the eye. Treatment plans will be specific to the individual patient.
Eye drops can help to reduce pressure in the eye by either decreasing the amount of fluid that is produced or allowing for better drainage from the eye (dependent on the type of glaucoma). They will usually need to be administered between 1 to 4 times a day, even if you don’t notice any problems with your vision. By attending regular check-ups with your optometrist or ophthalmologist, pressure in the eye can be monitored to ensure the drops are working.
How do I get started?
If glaucoma is picked up during an eye test or if you suffer from acute glaucoma, you should be referred to an ophthalmologist for further tests. They will confirm your diagnosis and make arrangements for your treatment. You can take the time to decide where you would like to be treated, and your GP or optician can then make arrangements for your referral.