Figure 5 of Schmack, Mol Vis 2009; 15:146-161.

Figure 5. Flat-mount preparation technique. Freshly enucleated eyes (A) were opened by radial corneal incisions (B). After removal of the iris and lens, the radial relaxing incisions were extended toward the equator, and the eyes cups were flat-mounted (C). Choroidal neovascularization membranes (arrow) remained attached to the choroid after gentle removal of the retina (D)