1 US Army, Cooper Landing, Alaska Coastal Eye Associates, Webster, Texas Weill-Cornell Medical College, New York, New York KBRWyle, Houston, Texas Wilmer Eye Institute, Baltimore, Maryland Department of Ophthalmology, University of Colorado, Aurora, Colorado Life Sciences Division, NASA, Houston, Texas Coastal Eye Associates, Webster, Texas Department of Vision Science, University of Houston, Houston, Texas Department of Ophthalmology, Methodist Hospital, Houston, Texas.