Glaucoma
- Author Dr James Pan
- Published September 12, 2010
- Word count 560
What is glaucoma?
Glaucoma, a second leading cause of blindness, is a group of eye disorders often associated with a dangerous build-up of internal eye pressure (intraocular pressure or IOP) which can damage the eye’s optic nerve that transmits visual information to the brain. As these changes are permanent, visual loss from glaucoma is irreversible.
What are the different types of glaucoma?
Glaucoma can be classified either based on their "angle" or causes. "Angle" refers to the internal structure of the eye drainage system that controls the outflow of fluid (or aqueous) from the eye. The "angle" can be viewed using special diagnostic contact lenses or gonioscopy.
Primary open-angle glaucoma (POAG) – commonest form of glaucoma
Acute closed-angle glaucoma (AACG)
Chronic closed-angle glaucoma
Normal-tension glaucoma
Secondary glaucoma
Congenital glaucoma
What symptoms will I experience if I have glaucoma?
Glaucoma often is called the "silent thief of sight" because most types typically cause no pain and produce no symptoms till the disease has progressed to a late stage. This is because only the peripheral or side vision is affected during the early stages. Central vision is only affected very late.
However, acute closed-angle glaucoma (AACG) can cause sudden onset of intense eye pain, nausea, vomiting, headache, blurred vision and seeing halos around light due to a sudden increase in IOP. AACG accounts for about 10% of all glaucoma cases in Singapore and is an ophthalmic emergency requiring urgent medical attention by an eye surgeon.
What should I do if I am worried about having glaucoma?
As most people with glaucoma have no symptoms, glaucoma eye screening is the only way of detecting the disease. At Nobel Eye & Vision Centre, we have the latest diagnostic and imaging tools (such as visual field assessment, optical coherence topography) to detect glaucoma, even when it is at an early stage. As glaucoma is irreversible, early detection and early initiation of treatment offers the best visual outcome for the patient.
Who should go for glaucoma screening?
Glaucoma is an age-related eye disease. Therefore, anyone above the age of 45-years-old should go for screening once in 2 to 3 years. Annual screening is recommended for those above 65-years-old. Those with strong family history of glaucoma, high myopia, diabetes mellitus and previous eye injury or eye inflammation should also be screened regularly.
What are the various treatment modalities for glaucoma?
There is no cure for glaucoma but we can lower the IOP, prevent progression of the disease and preserve patient’s vision. There are 3 main treatment modalities:
- Medications
Medications in the form of eye drops or tablets can help to reduce IOP by either reducing the production of fluid within the eye or increase its outflow from the eye.
- Laser surgery
When the IOP is not adequately control with medications, laser surgery can be performed to help the outflow of fluid. Laser iridotomy and laser trabeculoplasty are 2 main types.
- Glaucoma drainage surgery
Surgery (trabeculectomy) may be needed in advanced cases not controlled with medications or laser treatment.
The choice of treatment modalities will depend on the severity of the disease. Medications are usually tried first. Laser or glaucoma drainage surgery may be needed if there is evidence of disease progression despite medications.
As glaucoma is not a curable disease, patient will require lifelong monitoring and treatment. Regular reviews can help to detect progression and the treatment regime can be changed accordingly.
Dr James Pan,
Ophtalmologist Senior Consultant,
Nobel Eye & Vision Centre
www.noble-eyevision.com
, info@nobelspecialists.com
Article source: https://articlebiz.comRate article
Article comments
There are no posted comments.
Related articles
- Nerds and Geeks: They still live on!
- IQ Tests: History, Uses, and Choosing a Reliable Resource
- 8 Great Ways To Teach Kids About Oral Hygiene
- App Development as a Catalyst for Business Growth
- Costs of arranging a Mortgage in Spain
- TikTok and Instagram: Ways you will grow and learn.
- Mustang GT: Ford Motor Company is a Rising Force!
- 10 Ways to Transform Production Scheduling in Business Central
- Elevating Your Home with Bold Decor and Vintage Carved Doors
- The Ultimate Skin Care Guide for Every Weather
- Do I Need Insurance When I Rent a Boat?
- Casino Bonuses: How to Maximize Your Rewards and Enhance Your Gameplay
- Was Joseph Stalin a good or bad leader of the Soviet Union?
- Top 5 Slots with the Highest RTP: A Winning Guarantee or a Myth?
- The Thrill of the Hunt Discovering the World of Location-Based Entertainment
- How Much Is the Hermès Cleaning Fee?
- Does Hermès Offer Free Repairs?
- The history of gun control in Australia
- Digital Marketing
- How to Mix and Match: Tips for Building Versatile Outfits from Your Wardrobe
- The Significance of Commercial Cleaning Services in Auckland: A Key Element of the Modern Cleaning Industry
- How RTP Impacts Online Casino Gaming: A Guide for Players and Operators
- How Authentic Employee Reviews Boost Employer Branding
- How to Choose the Best Online Casino: 5 Simple Steps
- Guaranteed Auto Financing
- Transform The Mudroom for The Festive Season
- Rustic Thanksgiving Ambiance with Farmhouse-inspired Doors
- Master the Art of Gamification with Our Engaging App
- Some reflections about leveraging GenAI at scale within IT departments
- Why SureSIM Global is a Revolution in the Business Travel Industry