Amino Acid May Cause Glaucoma’s Blindness

An excess of an amino acid might cause the eye damage and blindness to a study that counters prevailing beliefs about the disease.

In a six-year study of 26 people with glaucoma, researchers found that they had twice the normal amount of glutamate in their eyes. Their study was published in the March issue of the American Medical Assn.’s Archives of Ophthalmology.