How many different types of cones are in the eye?
facts·@sanevys·
0.000 HBDHow many different types of cones are in the eye?
 *The rods are more numerous, some 120 million, and are more sensitive than the cones. However, they are not sensitive to color. The 6 to 7 million cones provide the eye's color sensitivity and they are much more concentrated in the central yellow spot known as the macula.*