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The field of vision of each eye is separate except for a narrow sector immediately
in front of the animal, where the two visual fields overlap. From the evolutionary
point of view the improved judgment of distance obtained by viewing an object ...
When an actual tear has developed, the retina starts to become detached and the
person has the sensation of a shadow coming down over the vision. The
essential factor in treatment is to seal off the hole in the retina. The part of the
An optic neuritis causing sudden onset of loss of central vision in one eye is a
frequent first symptom of multiple sclerosis. Detailed ophthalmic examination is
therefore essential in the case of any patient suspected of having disease of the ...
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LibraryThing ReviewUser Review - keylawk - www.librarything.com
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review