[1] Houston Methodist Hosp, Dept Ophthalmol, 6560 Fannin St,Scurlock 450, Houston, TX 77030 USA
[2] Baylor Coll Med, Houston, TX 77030 USA
[3] Weill Cornell Med Coll, Dept Ophthalmol, Houston, TX USA
[4] Weill Cornell Med Coll, Dept Neurol, Houston, TX USA
[5] Weill Cornell Med Coll, Dept Neurosurg, Houston, TX USA
[6] Univ Texas Med Branch, Dept Ophthalmol, Galveston, TX 77555 USA
[7] Univ Texas MD Anderson Canc Ctr, Dept Head & Neck Surg, Houston, TX 77030 USA
[8] Univ Iowa Hosp & Clin, Dept Ophthalmol, Iowa City, IA 52242 USA