The book New Truths in Ophthalmology was written by author G C Giles Christopher Savage Here you can read free online of New Truths in Ophthalmology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is New Truths in Ophthalmology a good or bad book?
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According to the well-known law of refraction by curved surfaces, such as are now under consideration (non-astig- matic eyes), the rectangular object will throw a rectangular image on each retina, the size of which will bear a definite proportion to the size of the object. The nodal point of the right eye is x, through which all lines of direction from this eye must pass. The lower inner corner of the image is thus connected with the upper right-hand corner of the object by the line 1-1. In the... same way the upper inner corner of the image is connected with the lower right-hand corner of the object by the visual line 2-2 ; and so on for the other corners of image and object. In like manner the corners of the rectangu- lar image in the left eye maybe connected with corresponding corners of the object by lines passing through the nodal point (x) of that eye. If the left eye should be excluded, the right eye would see the rectangle 1-2-3-4; ij: tne ri g ht e y e should be screened, the left would see the same rectangular figure.
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