Word: optical
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Dates: during 1930-1939
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...madness or paralysis, he is generally willing to undergo any heroic measure to set his world straight again. One of the best treatments for neurosyphilis (including tabes dorsalis, general paresis) is injections of tryparsamide, a penetrating arsenic compound. Tryparsamide has one tremendous drawback: it sometimes injures, sometimes destroys, the optic nerve, produces flickering vision, a narrow range of sight, even blindness. Yet doctors dare not do without the drug, because in cases of advanced syphilis it is one of the best safeguards against insanity and death...
...human being. In the words of Professor Arno Viehoever of the Philadelphia College of Pharmacy & Science, who finds Daphnia useful for testing drugs, "this little animal has a divine simplicity that is miraculous. Its fundamental biological responses are very similar to ours. It has nervous, digestive, circulatory, respiratory, optic and reproductive systems...
...Viehoever of the Philadelphia College of Pharmacy & Science. "This little animal has a divine simplicity that is miraculous," Professor Viehoever never tires of telling. "It is seemingly a primitive form of life until studied. Its fundamental biological responses are very similar to ours. It has nervous, digestive, circulatory, respiratory, optic and reproductive systems, and the beauty of it is that the animal is perfectly transparent so you can see everything that is happening, from the digestion of its food and the beating of its heart to the working...
...Huntington's chorea, hereditary optic atrophy, familial cases of Friedreich's ataxia, and certain other disabling degenerative diseases recognized to be hereditary...
Another performance which fascinated the convention was Dr. Otto Barkan's operation for chronic glaucoma. In this disease the tiny drain called "canal of Schlemm" becomes clogged. It cannot carry away excess fluid which accumulates within the ball of the eye. Internal pressure eventually atrophies the optic nerve, causes blindness. The usual operation for glaucoma punctures the eyeball daintily, lets accumulated fluid escape. However, in many cases the hole soon seals itself, necessitating further operation. Dr. Barkan found that blockade of the canal of Schlemm is often due to grains of pigment which slip in from the iris...