SEM of Light Blue Iris
Scanning electron micrograph of light blue iris seen in Fig. 4. Preparation of specimen for SEM has opacified the clinically transparent, nonpigmented anterior border layer and stroma of the blue iris, obscuring the radially oriented, collagen-ensheathed midstromal vessels. Pupillary and marginal crypts in the iris stroma are accentuated by SEM. At this magnification, blue and brown irides are indistinguishable by scanning microscopy (SEM, X 20)
