"Visual defect" Quotes from Famous Books
 ... objects must, to them, be abstract or complex terms, as all such necessarily are, that cannot be the objects of perception. The other sensitive organs, and especially the touch, to a limited extent, become the substitutes for visual defect, although they are no actual compensations for sight. By models the blind can become acquainted with alphabetic characters, and unite them into words: and in the same manner discriminate, and record the musical notes. Some of the blind have become highly intelligent, ...
— On the Nature of Thought - or, The act of thinking and its connexion with a perspicuous sentence • John Haslam
... a French ophthalmic surgeon, that a distinguished patient applied to him for relief from a visual defect; the surgeon advised him to go into the country and look out upon the green fields. The green color with its soothing effect soon brought about a restoration of vision. What I wish to illustrate by this anecdote is that children should be allowed ...
— Scientific American Supplement No. 822 - Volume XXXII, Number 822. Issue Date October 3, 1891 • Various
... Another visual defect of a different nature is known as partial color blindness. The defects described above are due to misshapen eyes. Partial color blindness is due to a defect of the retina which makes it unable to be affected by light waves producing red and green. A person with this defect confuses ...
— The Science of Human Nature - A Psychology for Beginners • William Henry Pyle |
