16 Jan What is glaucoma?
Glaucoma is a condition that already affects in excess of 80 million people worldwide, and it’s set to become even more widespread in the future. A leading cause of irreversible blindness, cases of glaucoma are projected to rise largely because it’s silent and its progression is gradual in nature. As a result, many cases go undetected because sufferers are unaware that they even have it, and this has led to a prediction that the number of people with glaucoma may reach as many as 112 million by 2040.
In terms of the UK population, it’s estimated that around 700,000 people have glaucoma, half of whom are unaware. Worryingly, one person in 50 over the age of 40 develop it. Black individuals are between six and eight times more likely to go blind from glaucoma, while those with diabetes are twice as likely.
There are often no early symptoms of glaucoma and this results in late diagnosis in many cases. Globally, it ranks second – only behind cataracts – as the cause of irreversible sight loss. As it progresses, it damages the optic nerve, impeding the quality of vision information that’s transmitted to the brain, and that in turn leads to sight loss. High myopia – or severe near-sightedness – and high intraocular pressure are also common causes.
There are two types of glaucoma:
- Open-angle: this is the most common form, where the drainage angle stays open but doesn’t work properly
- Angle-closure: this is where the iris blocks fluid drainage and can cause an emergency
January is Glaucoma Awareness Month, and for Eyes of Swavesey owner, Emma Logan, the message is clear. ‘Glaucoma is a leading cause of irreversible blindness and often has no early symptoms, so regular eye tests are essential for early detection and can make a real difference,’ says Emma. ‘We encourage everyone, especially if they’re over 40 and/or have a family history of glaucoma, to prioritise their eye health and book an eye test today.’
Eyes of Swavesey are opticians in Cambridge, and we offer full eye tests as well as glasses and contact lenses, all with the option of a competitive EyePlan. Call us on 01954 231158 to secure an appointment or book online here.
