The Cure of Imperfect Sight by Treatment
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The Original Bates Method, for correcting vision defects

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214         Presbyopia: Its Cause and Cure
the Hun that we can no longer endure the music of Bach, or the language of Goethe and Schiller; but German ophthalmology is still sacred, and no facts are allowed to cast discredit upon it.
Fortunately for those who feel called upon to defend the old theories, myopia postpones the advent of pres byopia, and a decrease in the size of the pupil, which often takes place in old age, has some effects in facilitating vi sion at the near-point. Reported cases of persons reading without glasses when over fifty-or fifty-five years of age, therefore, can be easily disposed of by assuming that the subjects must be myopic, or that their pupils are unusu ally small. If the case comes under actual observation, the matter may not be so simple, because it may be found that the patient, so far from being myopic, is hyper metropic, or emmetropic, and that the pupil is of normal size. There is nothing to do with these cases but to ig nore them. Abnormal changes in the form of the lens have also been held responsible for the retention of near vision beyond the prescribed age, or for its restoration after it has been lost, the swelling of the lens in incipient cataract affording a very convenient and plausible ex planation for the latter class of cases. In cases of pre mature presbyopia "accelerated sclerosis"1 of the lens and weakness of the ciliary muscle have been assumed; and if such cases as the dressmakers who can thread their needles when they can no longer read the newspapers had been observed, no doubt some explanation consistent with the German viewpoint would have been found for them.
The truth about presbyopia is that it is not "a normal result of growing old," being both preventable and cu-
1Fuchs: Text-book of Ophthalmology, p. 905.