January 15, 2018 by Medigroup
January is nationally recognized as Glaucoma Awareness Month. The Glaucoma Research Foundation reported that more than 3 million people in the U.S. have this disease of the eye, and it is projected to affect more than 4 million individuals by 2030, according to estimates from the National Eye Institute.
The disease is the leading cause of irreversible blindness. Citizens should be aware of how at-risk they are and what types of treatment are available that can prevent glaucoma’s life-changing effects.
Regular eye exams can help detect early onset glaucoma.
“Glaucoma is the leading cause of blindness in African Americans.”
Glaucoma is referred to as the ‘sight thief’ because, for most people with the disease, it can take up to 40 percent of their vision without them noticing.
There are two types of glaucoma that people generally develop. The first is called primary open-angle glaucoma, which is the most commonly found version of the sickness.
According to the American Academy of Ophthalmology, it occurs when fluid from the eye fails to drain at a normal rate, causing eye pressure to build that eventually harms the eye’s optic nerve. The optic nerve is hugely important for vision, as it carries images from the eye to the brain and cannot be repaired. Open-angle damage to the nerve is gradual at first and leads to no immediate vision changes until it reaches advanced stages. As a result, people with primary open-angle glaucoma usually are not aware they have it until problems with sight grow severe.
Angle-closure glaucoma, also called closed-angle glaucoma or narrow-angle glaucoma, is the second most common form of the disease. This occurs when the iris blocks the eye’s drainage angle and causes a pressure buildup that injures the optic nerve. The pressure can accumulate slowly over time or quickly, with both resulting in what is known as an acute attack. These attacks are medical emergencies and require immediate treatment by a doctor to prevent blindness. Symptoms of an acute attack include:
According to another report from the Glaucoma Research Foundation, everyone is at risk of developing some form of glaucoma, however there are certain demographics of people that are more susceptible to it than others:
The Glaucoma Research Foundation stated the disease has blinded approximately 120,000 people in the U.S., accounting for between 9 and 12 percent of all cases of blindness.
There is no cure for the glaucoma however, its immediate detection and treatment in early stages can be highly effective in preventing blindness. There are a number of tests people can get to help determine if they have glaucoma.
These tests include:
If signs of glaucoma are discovered, corrective measures exist that can stop it from worsening.
Medicines taken via eyedrops or pills are the most common form of glaucoma treatment. They can serve a variety of functions such as draining the eye of fluid and lowering pressure or preventing the eye from making new fluids altogether, according to the National Eye Institute.
Laser trabeculoplasty is a procedure that involves the use of a high-powered light beam to drain fluid from the eye. The light is aimed at the eye’s meshwork that facilitates fluid draining. The laser enlarges the holes in the meshwork, which works to improve drainage. The procedure is effective at reducing eye pressure but sometimes requires multiple treatments, as holes can seal up over time.
Another form of treatment is through a conventional surgical operation called a trabeculectomy. This is when a doctor removes a small piece of tissue from the eye that creates a new channel for fluid to drain from. The NEI reported the surgery to be between 60 to 80 percent effective in dropping eye pressure and preventing further vision loss in patients.
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