1. From the Wayne State University School of Medicine, Department of Ophthalmology, Kresge Eye Institute, Ligon Research Center of Vision, Detroit, Michigan;
2. pSivida Ltd., Boston, Massachusetts; and
3. From the Wayne State University School of Medicine, Department of Ophthalmology, Kresge Eye Institute, Ligon Research Center of Vision, Detroit, Michigan; the 3Mayo Clinic, Rochester, Minnesota.