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Glaucoma

Glaucoma is a vision-threatening disorder characterized by slow loss of optic nerve fibers. Susceptibility to this disease depends on a variety of factors including the level of pressure in the eye, a genetic tendency and older age. Glaucoma sometimes is caused by an abnormal buildup of a clear fluid called aqueous humor inside the eyeball. Normally drained away and replaced by the eye, the fluid is critical for bringing nutrients to the lens and cornea and removing waste material. When drainage channels become blocked, the increased pressure in the eye can damage the optic nerve. Glaucoma often develops slowly and painlessly (open-angle), or occasionally, suddenly and painfully (closed-angle). Open-angle glaucoma strikes two percent of older Caucasians and eight percent of older African Americans. People who have a family history of glaucoma have a higher-than-normal risk of disease. Although open-angle glaucoma cannot be prevented, early diagnosis gives physicians a valuable advantage in treatment to reduce the chance of blindness.

Diagnosis:

The Wilmer Eye Institute is a leader in the development of new diagnostic techniques. These led Wilmer scientists to discover that early stages of glaucoma can damage nerve cells without causing noticeable symptoms. Two valuable testing procedures were developed at Wilmer and are generally unavailable elsewhere in the Baltimore area: photographic quantitation of the nerve fiber layer, which indicates the health of the eye; and the very latest visual field testing devices and computerized techniques for early diagnosis. The self-tonometer, a device invented by a Wilmer scientist that measures pressure in the eye and is designed for use at home, has been used successfully by patients on an investigational basis to measure their own intraocular pressure. The results of the study show that the amount of daily fluctuation in pressure can predict the likelihood of vision loss. The device is at least as reliable as standard measurements done during routine office visits. Such tests can lead to early treatment before obvious vision problems materialize.

Treatment:

Treatment for glaucoma may include eye drops to decrease production of the fluid aqueous humor. Eye drops also may promote outflow from the front part of the eye into small drainage canals, thereby lowering pressure. Glaucoma that is resistant to drug treatment can be treated with argon laser trabeculoplasty, an outpatient procedure using a laser beam. A surgical technique called trabeculectomy also may be performed to lower eye pressure.

> Treated by the Glaucoma Center of Excellence

The Future:

Wilmer Eye Institute is recognized as a center for national research studies. Here, glaucoma specialists continue to pioneer new surgical and drug-treatment options that are available on an investigational basis, even before FDA approval.

More Information:

Dr. Robert Massof Named 2015 Helen Keller Laureate - 8/1/2014

Dr. Sheila West on the Link Between Smoking and Eye Disease in Women - 7/23/2014

Dr. Pradeep Ramulu and Colleagues Study Relationship Between Vision Loss and Work Status - 7/18/2014

Wilmer Resident Receives Lindstrom Research Grant - 7/11/2014

Four Wilmer Researchers Receive BrightFocus Foundation Awards - 7/10/2014

Dr. Michael Repka Part of Team Researching Telemedicine and ROP - 6/27/2014

Dr. M. Valeria Canto-Soler and Colleagues Featured on WBAL-TV - 6/24/2014

Dr. M. Valeria Canto-Soler and Colleagues Use Human Stem Cells to Create Light-Sensitive Retina in a Dish - 6/10/2014

Wilmer's Division of Ocular Immunology Announces "Living With Uveitis" Support Group - 6/10/2014

Dr. Neil Bressler to Speak on Diabetic Retinopathy at National Eye Health Summit and Webcast - 6/10/2014

Dr. Donald Zack Receives a Research to Prevent Blindness Nelson Trust Award for Retinitis Pigmentosa - 6/9/2014

Dr. Michael Boland Leads Study on Effectiveness of Automated Telecommunication-Based Reminders on Adherence to Glaucoma Medication Dosing - 6/4/2014

Dr. Christina Prescott Discusses Summer Eye Protection on Fox 45 News - 6/1/2014

Dr. Jonathan Song Discusses Treatment Options for Pediatric Cataracts - 5/23/2014

Johns Hopkins' Jordan Green Discusses His Work at Wilmer's Translational Tissue Engineering Center - 5/21/2014

Longtime Wilmer Employee Lillie Alston Honored by Hopkins - 5/19/2014

Dr. Richard Semba: Diets Rich in Antioxidant Resveratrol Fail to Reduce Deaths, Heart Disease or Cancer - 5/12/2014

Dr. Neil Miller Explains Eye Twitching in The Wall Street Journal - 5/12/2014

Dr. Hendrik Scholl Receives ARVO Award - 5/7/2014

 

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