[1] New York Presbyterian, Weill Cornell Med Coll, Dept Ophthalmol, New York, NY USA
[2] Brooke Army Med Ctr, Dept Ophthalmol, San Antonio, TX USA
[3] Johns Hopkins Univ, Wilmer Eye Inst, Baltimore, MD 21218 USA
[4] H Lee Moffitt Canc Ctr & Res Inst, Dept Radiat Oncol, Tampa, FL USA
[5] Athena Eye Inst, 5282 Med Dr,610, San Antonio, TX 78229 USA
[6] Univ Texas Hlth Sci Ctr San Antonio, Dept Ophthalmol, San Antonio, TX 78229 USA