[1] Peking Univ, Sch Basic Med Sci, Dept Anat, Beijing, Peoples R China
[2] Peking Univ, Key Lab Machine Percept, Minist Educ, Beijing, Peoples R China
[3] Peking Univ, Key Lab Visual Impairment & Restorat, Minist Educ, Beijing, Peoples R China
[4] Univ Calif Los Angeles, Dept Neurobiol & Mol Cellular & Integrat Physiol, Los Angeles, CA USA
[5] Univ Calif Los Angeles, Jules Stein Eye Inst, Los Angeles, CA 90024 USA
[6] Univ Calif Los Angeles, Coll Life Sci, Los Angeles, CA USA