[1] Univ Calif Los Angeles, David Geffen Sch Med, Stein Eye Inst, Glaucoma Div, 100 Stein Plaza, Los Angeles, CA 90095 USA
[2] St Mary Med Ctr Dign Hlth, Long Beach, CA USA
[3] Univ Calif San Diego, Shiley Eye Inst, La Jolla, CA 92093 USA
[4] Pusan Natl Univ, Dept Ophthalmol, Coll Med, Busan, South Korea
[5] Shahid Beheshti Univ Med Sci, Dept Ophthalmol, Tehran, Iran
[6] Mashhad Univ Med Sci, Eye Res Ctr, Mashhad, Razavi Khorasan, Iran