Sharpey-Schäfer, E. A. (Edward Albert), Sir, 1850-1935
The book Text-Book of Physiology; was written by author Sharpey-Schäfer, E. A. (Edward Albert), Sir, 1850-1935 Here you can read free online of Text-Book of Physiology; book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Text-Book of Physiology; a good or bad book?
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In fishes. Beer found the mechanism to be of an absolutely different nature.-'' It had previously been found that the fish is myopic in water, and Beer con- firmed this, using the methods of skiascopy and direct ophthalmoscopy, the myopia varying from about 3 to 12 D in water in most fishes, and from 40 to 90 D in air. With the ophthalmoscope Beer found a decrease of the myopia on electrical stimulation of the eye. With the phakoscope and ophthalmometer he found no change in the curvature of th...e lens, but distinct movement of the lens backwards and slightly to the temporal side during stimulation. He found that this movement was due to the campanula, which could be seen to contract ; while retraction of the lens did not occur after cutting the campanula or its tendon. The lateral movement of the lens was due to the position of the campanula on the temporal side, and through the space between the pupil and the lens Beer was able to observe a corresponding lateral movement of the retinal image.
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