Bibliographical noteFunding Information:
LSU Eye Center, Louisiana State University Medical Center School of Medicine, New Orleans, Louisiana. Supported in part by United States Public Health Service grants R01EY02580 (H.E.K.), T32EY07100 (S.C.K.), and P30EY02377 (H.E.K.); a grant from Research to Prevent Blindness, Inc., New York, New York; and the Visionary Society Fund, New Orleans, Louisiana.