The book Handbook of Optics for Students of Ophthalmology was written by author Souter, William Norwood, 1861-1935 Here you can read free online of Handbook of Optics for Students of Ophthalmology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Handbook of Optics for Students of Ophthalmology a good or bad book?
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We have seen, as we might infer, that the size of the image varies according to the same rule as does the dioptric power of the lens in any position, that is, if the distance between the object and lens is less than twice the focal length of the lens, the power of the lens is weakened and the size of the image is diminished by removal of the lens from the eye ; and if the distance of the object is more than twice the focal length of the lens, the power of the lens and the size of the image are ...increased by removal of the lens from the eye. Thus, as the prevalent 'belief that pres- byopes increase the power of their glasses by placing them on the tip of the nose was shown to be not generally true, so the statement made in some text- books that by so placing them larger images are obtained, is also erroneous. The condition when the eye is emmetropic and without accommodative power is shown in Fig. 31. When one looks through an ordinary hand magni- EETINAL IMAGES 123 fying glass, the same conditions are present.
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