On the temporal side and some distance from the upper end of the optic nerve is a brilliant, white, round dot surrounded by a small, light-green reflex ring, which is itself enclosed in a very brilliant, narrow green ring—the muscular region. On the nasal side of the disc, and on a level with this macula is another area, of a gray color, surrounded by a fan-shaped, luminous reflex. The optic nerve-entrance is distinctly white, and along its center is strewn a large number of minute pigment dots.