Fig. 65. Minification by spectacle lens in myopia. a. The lens is close to the eye and forms an image of height Y1', which subtends an angle at the eye, as shown in b. c. When the lens is fitted farther fro the eye, it forms an image of height Y2', which subtends a smaller angle ' at the eye, as shown in d. The farther from the eye that the correction lens is fitted, the greater is the minification. |