Lectures on cataract : its causes, varieties, and treatment / by George Cowell.
- Cowell, George, 1836-
- Date:
- 1883
Licence: Public Domain Mark
Credit: Lectures on cataract : its causes, varieties, and treatment / by George Cowell. Source: Wellcome Collection.
22/158 (page 2)
![which will also guard you from a participation in a false diagnosis of cataract when such an affection does not really exist. Cataract may be defined to be a loss of transparency of the crystalline lens. Opacities Definition of of the cornea are often popularly Cataract, erroneous]y described as cata- ract by the ignorant, and it would be much to the detriment of the reputation of any practitioner if he confirmed so mistaken a diagnosis. An appreciation of the above de- finition will render such a mistake almost impossible. Another error in the diagnosis of cataract is favoured by many books on oph- thalmic surgery, in which we find a somewhat common condition of the eye described as false or spurious cataract, a term which is apt to mislead. This condition really consists of a false membrane occupying the pupil, and more or less filling it up. This false membrane is formed by the remains of lymph which has been effused into the pupil during some prior attack of iritis, and is easily recognised by a lens, by the oblique illumination, and by the instillation of a drop of a solution of atropine, when the pupil will be found to be fixed and](https://iiif.wellcomecollection.org/image/b2039858x_0022.jp2/full/800%2C/0/default.jpg)
