1 Departments of Ophthalmology (H-IC, Hu-CC, A-GW) and Radiology (Hs-CC, C-CW), Taipei Veterans General Hospital, Taipei, Taiwan; Department of Ophthalmology (C-CW, Hu-CC, A-GW), School of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan; Program in Molecular Medicine (Hu-CC), College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Life Sciences and Institute of Genome Sciences (Hu-CC), College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan; and Brain Research Center (Hu-CC), National Yang Ming Chiao Tung University, Taipei, Taiwan.