Histology image: 07902loa – Histology Learning System at Boston University http://www.med.uiuc.edu/histo/small/atlas/objects/126.htm Slide at uc.edu http://www.kumc.edu/instruction/medicine/anatomy/histoweb/eye_ear/eye12.htm http://education.vetmed.vt.edu/Curriculum/VM8054/EYE/RETINA.HTM