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What is glaucoma?
Glaucoma is the name given to a series of devastating diseases that irreversibly damage the eye's optic nerve. If left unchecked, this can result in serious vision loss over time.
Glaucoma is commonly detected by measuring the pressure in the eye, also known as intraocular pressure (IOP). When eye pressure increases over time, the optic nerve becomes damaged.
Worldwide, an estimated 6.7 million people are blind from glaucoma, with approximately 70 million people living with the condition.
The only modifiable glaucoma risk factor is high eye pressure, though it is possible to develop the condition without it. Due to the build-up of natural fluid produced by the eye, high eye pressure causes permanent damage to the optic nerve, the "cable" used by the eye to communicate to the brain. High eye pressure may exist without noticeable symptoms so many people do not know they have it if their vision is not checked regularly.
In fact, people may not notice vision loss until 40 per cent or more of their optic nerve has been damaged. IOP is an easily identifiable risk factor; however people who fall within the normal IOP range may still be at risk for glaucoma.
Risk factors for glaucoma
Since glaucoma may not demonstrate any early symptoms, it's important to learn the risk factors and to discuss them with an eye health professional. The primary risk factors for glaucoma include:
-Increasing age
-Have a family history of glaucoma
-Have high intraocular pressure (IOP)
-Are markedly nearsighted
Vision loss from glaucoma is permanent, so if you think you are at risk, early diagnosis could help ensure you have the best chance of maintaining your vision long term.
Five tips on preventing glaucoma
These tips can serve as useful reminders that patients and eye health professionals can utilise to help ensure successful glaucoma management:
1. Remember to get a complete eye exam including assessment of your optic nerve.
2. Know your eye pressure or intraocular pressure (IOP).
3. Take your medication as prescribed.
4. Know your risk factors - raise awareness about the disease.
5. Visit an eye health professional if you are at risk - earlier diagnosis and appropriate treatment may potentially help reduce the overall impact of glaucoma.
For more information, visit www.AllEyesOnGlaucoma.com.
References:
1. The All Eyes on GlaucomaTM Asia survey - sponsored by Pfizer Ophthalmics, supported by the World Glaucoma Association (WGA) and the World Glaucoma Patient Association (WGPA). The survey involved approximately 1000 respondents aged between 40-70 from nine countries including China, Hong Kong, India, Korea, Malaysia, Philippines, Singapore, Taiwan and Thailand.
2. Traverso, CE, Walk, JG er al. Direct Costs of Glaucoma and Severity of the Disease: a Multinational Long Term Study of Resource Utilization in Europe. BR J Ophthalmol 2005; 89:1245-1249.
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Extracted from The Star/ANN
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