Cryosections of mouse eyes from control and age-matched diabetic mice that were incubated with antibody against σR1 followed by incubation with FITC-labeled secondary antibody. (A) 2 week control, (B) 2 week diabetic, (C) 6 week control, (D) 6 week diabetic, (E)12 week control, (F) 12 week diabetic. gcl = ganglion cell layer, inl = inner nuclear layer. (Magnification: 400X).