Practical observations on the formation of an artificial pupil, in several deranged states of the eye : to which are annexed, remarks on the extraction of soft cataracts, and those of the membraneous kind, through a puncture in the cornea : illustrated by plates / by Benjamin Gibson.

  • Gibson, Benjamin, 1774-1812.
Date:
1811
Catalogue details

Licence: Public Domain Mark

Credit: Practical observations on the formation of an artificial pupil, in several deranged states of the eye : to which are annexed, remarks on the extraction of soft cataracts, and those of the membraneous kind, through a puncture in the cornea : illustrated by plates / by Benjamin Gibson. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    prefer therefore the operation at the ex- ternal angle, in all convenient cases; and if the patients are enabled to read with more certainty by this mode, than any other, they can have little reason to be dissatisfied with the slight squint of which it may be productive. When both eyes have happened to be similarly affected with opacity of the cor- nea, I have found it of little use to the patient, to form an artificial pupil in each. For when the vision of one eye, after the operation, is more perfect than that of the other, the patient (as in many cases of defective vision) acquires the habit of using the more perfect eye, and entirely neglects the other. When, therefore, I meet with a defect in both eyes from opa- city, I select the more perfect for the sub- ject of an operation.