The toxic amblyopias: their classification, history, symptoms, pathology, and treatment . Visual fields of Mellingers case of quinine-amaurosis, showing symmetricalcontraction of the visual fields eight months after blindness. Prognosis. In spite of the complete absence of lightperception, which ushers in severe types of the affection, QI ININE-AMA UROSIS 189 permanent blindness from this cause in human beings isalmost unknown ; indeed, until the report of Claibornescase it had not been recorded, although several examplesof visual disabilities of long duration had been two yea
The toxic amblyopias: their classification, history, symptoms, pathology, and treatment . Visual fields of Mellingers case of quinine-amaurosis, showing symmetricalcontraction of the visual fields eight months after blindness. Prognosis. In spite of the complete absence of lightperception, which ushers in severe types of the affection, QI ININE-AMA UROSIS 189 permanent blindness from this cause in human beings isalmost unknown ; indeed, until the report of Claibornescase it had not been recorded, although several examplesof visual disabilities of long duration had been two years after the primary poisoning of Clai-bornes patient the vision of the right eye was : move- Fig. 4G. Visual fields of Tiffanys case of quinine-amaurosis five weeks after completeblindness. V. at this time O. D. 20/40; O. S. 20/30. ments of the hand at six feet, candle-field elliptical ; lefteye, perception of light, vessels almost obliterated; pupilsirresponsive. In nearty all of the cases, however, which have beenexamined with care some impairment of vision remainedwhen the patient was last observed, and complete resto-ration of the visual field when once contracted (in Gale-zwoskis case the visual field wTas not restricted) does notoccur in grave forms of quinine-amaurosis. Atkinson calls attention to these points, as follows :Six months after the be^innino- of blindness one ofGruenings cases wras still partially color-blind and the 190 TOXIC AMBLYOPIAS. fields of vision remained contracted. In one of Roosascases the visual fields continued contracted, the opticdisks pale, and the arteries small; in another, at the ex-piration of two years, the patient felt as if there was aveil ov
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