1. From the Chemistry Department, Adelphi University, Garden City, New York; the2Laboratory of Mechanisms of Ocular Diseases, National Eye Institute, Bethesda, Maryland.
2. Nuclear Magnetic Resonance Imaging Research Facility, National Institute of Neurological Disorder and Stroke, Bethesda, Maryland; and the
3. Laboratory of Mechanisms of Ocular Diseases, National Eye Institute, Bethesda, Maryland.