[1] Indiana Univ, Sch Optometry, 800 E Atwater Ave, Bloomington, IN 47405 USA
[2] Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Sch Engn Med, Key Lab Biomech & Mechanobiol,Minist Educ, Beijing, Peoples R China
[3] Japan Synchrotron Radiat Res Inst Spring 8, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan
[4] Anglia Ruskin Univ, Fac Hlth Educ Med & Social Care, Med Technol Res Ctr, Chelmsford Campus, Cambridge, England