Tuesday, November 18, 2014

Glaucoma San Antonio Patients Preserve Vision With Education And Early Detection

By Etta Bowen


Loss of vision changes every single aspect of life. In past centuries, people who lost their eyesight and had no safety net often ended up begging in order to survive. While that rarely happens today, eye diseases like glaucoma still exact a harsh personal penalty, and can result in blindness if not found and treated in time. Glaucoma San Antonio sufferers combat this optic nerve issue using education and advances in technology.

The disease is a combination of conditions that often afflicts both eyes, and is commonly characterized by an internal increase in fluids and pressure. Under normal circumstances those liquids drain, equalizing the pressure. If that process is blocked, internal fluid builds, placing damaging pressure on nearby ocular structures including the optic nerve. There are two primary forms, closed and open angle glaucoma.

Because this eye disease progresses slowly, victims may not initially be physically aware of any problem. As time passes, damaged nerves slowly cause losses in peripheral vision, a process that may continue for years. In the final stages, all sight is severely affected and vision restricted to a narrow tunnel directly in front of the face. Closed angle disease can cause immediate problems with very prominent symptoms.

These include blurred vision accompanied by eye pain, which may be severe enough to cause nausea and vomiting. Lights appear to have surrounding auras, and adjusting to different illumination levels becomes difficult. Risk of developing the disease increases with age, and can also affected by ethnic background, previous eye surgery, and the presence of certain other illnesses.

The key to successful treatment is early diagnosis. Pressure tests have become a standard part of most eye exams, and can immediately detect dangerously high levels. Additional tools include gonioscopy, a procedure determining blockage of the angle between the iris and cornea. Perimetry tests can tell whether portions of lateral vision are missing, and optic nerve tools reveal the extent of damage at the rear of the eye.

If problems are discovered during an exam, treatment usually begins as soon as possible. As of yet there is no total cure for this type of complex eye degeneration, but progress can be slowed or even halted. While existing destruction is irreversible, there are significantly helpful eye drops that contain effective drugs, including beta blockers, fluid inhibitors, prostaglandin analogues, and chemicals that stimulate liquid flow.

In some cases, the drops may not prove effective, requiring surgery to relive pressure. Lasers are increasingly being used to unblock drainage passages, and some patients benefit from filtering procedures intended to relieve pressure manually. Some patients receive an aqueous shunt implant. Victims of acute-angle glaucoma are treated as emergencies cases, and require immediate pressure reducing drugs in combination with surgery.

San Antonio TX sufferers know the vital role eye examinations and early detection play in combating this second leading cause of blindness. Because the disease can progress even without symptoms, only an eye specialist can determine whether there is potential trouble. Technological improvements in equipment make an early diagnosis painless and relatively simple, giving doctors better ways to preserve vision longer.




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