Tuesday, December 2, 2014

Glaucoma San Antonio Patients Fight To Preserve Vision

By Etta Bowen


Losing the sense of sight changes every aspect of living. In the past, people who developed blindness and had no safety net often ended up homeless, relying on begging for survival. While that happens far less commonly today, conditions like glaucoma still take a severe personal toll, and can result in blindness if not discovered and treated early. Glaucoma San Antonio patients fight optic nerve damage with education and the latest medical advances.

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.

Victims may not be aware of a developing problem because the symptoms of open angle glaucoma have a gradual onset. Over time, nerve damage results in a loss of peripheral vision that may go unnoticed for years. In the later stages, all vision is affected, and restricted to a narrow, tunnel-like space directly in front. The closed-angle variety causes more immediate problems, and has more noticeable symptoms.

Those signs include eye pain accompanied by blurred images, sometimes causing nausea and vomiting. Lights seem surrounded by halos, and adjusting to different illumination levels becomes difficult. Advancing age increases the probability of developing this disease, which can also affect people with specific genetic backgrounds, those who have had recent eye surgery, and people already dealing with 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.

When an exam reveals existing issues, treatment often begins immediately. Although there are currently no complete cures for this combination of eye conditions, progression can now be dramatically slowed, and often halted. Existing destruction is not reversible, but the most effective medications include eye drops containing beta blockers, fluid inhibitors, prostaglandin analogues, or liquid flow stimulants.

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.

Sufferers in San Antonio TX realize the importance of testing and treatment to combat the progression of this vision-robbing condition. Because there may be no apparent symptoms, only a vision specialist can detect the first signs of trouble. Technological advances in visual medicine have made detection simple and pain-free. Early diagnosis reduces the chance that long-term problems will develop.




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