The refraction-changes dependent upon glycosuria / by George M. Gould.

  • Gould, George Milbrey, 1848-1922.
Date:
1907
Catalogue details

Licence: In copyright

Credit: The refraction-changes dependent upon glycosuria / by George M. Gould. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    Landolt’s Cased°—“VVe have observed, among others, a most interesting case of this kind. A lady had a fall and became diabetic as a consequence of this traumatism, although her general condition was not much affected by it. At the same time she com- menced to no longer see well at a distance, and found the spectacles, that she had previously worn on account of her presbyopia, to be insufficient. The refraction could be determined, in this case, with the utmost accui-acy, not only because the patient was very intelligent, but because she had reached an age at which the accommodation is almost nil. I made out a hyperopia of 0.5 D., which certainly had not previously existed. It increased and then dimin- ished, according to the amount of sugar excreted, and finally disappeared entirely. So that, when this traumatic diabetes was cured, the patient could dis- pense with her distance-spectacles, and substitute, when reading, her former spectacles for the stronger glasses which she had been obliged to resort to. I have seen the patient for several years, and it has been extremely interesting to note that each little recurrence of diabetes has announcd itself at once by a diminution of refraction, to such a point that the curve of hyperopia. was, so to say, parallel with that of the quantity of sugar eliminated with the urine.” Callus’ Case.^^—A man aged 51, under treatment for diabetes for two weeks, noticed impairment of vision for distance. Sph. + 2.00 for reading had become too weak, although he “could see well through them into distance.” Examination revealed R. -|- Sph. 1.50 + Cyl. 0.50 ax. 180°= (What?) L. + Sph. 2.00 -[- Cyl. 0.50 ax. 180°= (What?) With 2. added he could read the smallest type. Under treatment glycosuria ceased, and in two months the hyperopia had subsided so that the patient needed tc
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