Saturday, November 29, 2014

Glaucoma San Antonio Patients Fight To Preserve Vision

By Etta Bowen


Loss of eyesight impacts every single aspect of daily life. In past eras, those who went blind without benefit of social safety nets often ended life as beggars. While that is usually no longer the case, diseases like glaucoma still exact a severe personal toll, and still can result in visual impairment if not found and treated in the early stages. Glaucoma San Antonio patients continue fighting this scourge using medical advances and education.

It commonly affects both eyes, and is characterized by an increase in fluid pressure within the eye. Under normal conditions, the fluids drain away, allowing pressure to equalize. When that process is interrupted, internal forces slowly build, and can cause long-term damage to the optic nerve and adjacent eye structures. There are two main types of this ailment, designated open or closed angle.

Because the onset of symptoms is gradual, victims may be completely unaware they face danger. Over a period of years, nerve damage causes a loss of peripheral vision that may not be obvious. If untreated, later stages affect all types of vision, sometimes restricting it to a small, tunnel-shaped space directly in front of the eyes. Closed angle disease causes more acute symptoms that become immediately noticeable.

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 cases that do no respond to eye drops, surgery may be the best option. Drainage passages can be effectively unblocked using lasers, while other patients show progress when treated with filters that help relieve internal eye pressure. In some cases aqueous shunt implants are installed. A victim of acute-angle glaucoma is treated as an emergency requiring immediate drug therapy and surgery.

San Antonio TX victims of this condition realize how important regular eye exams and early detection really are. Because many patients experience the disease for years without overt symptoms, only a physician can determine the extent and severity of the problem. Current technological advances have made early diagnosis simple, easy, and painless, and help preserve visual acuity as long as possible.




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