A treatise on the diseases of the eye : including the doctrines and practice of the most eminent modern surgeons, and particularly those of Professor Beer / by George Frick, M.D.

  • Frick, George, 1793-1870.
Date:
1826
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the diseases of the eye : including the doctrines and practice of the most eminent modern surgeons, and particularly those of Professor Beer / by George Frick, M.D. 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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    EXPLANATION OF THE PLATE, Fig. 1. Beer's Cataract Knife. In the construction of this instrument, it will be necessary to imitate the exact size and dimensions of the figure in the plate. The back of the knife from a to e, should be made perfectly straight and rounded off, and its lancet-shaped point c, b9 possessed of a sharp cutting edge, in order to facilitate its passage through the cornea, The sides of the knife should be gently curved. Fig. 2. Represents Reissinger's double-hooked forceps for the performance of Koredialysis. The hooks should be made very fine and delicate, and so constructed as to lie most accu- rately over each other, when the blades of the forceps are brought together. They are prevented gliding from each other in this state, by the small steel head a, which fits into a cavity on the opposite branch. Fig. 3. A fine Eye forceps, constructed with a small hook or tooth a, at one extremity, which fits when closed into a corres- ponding cavity in the other, serving in this manner to prevent the branches from gliding over each other, and to retain more firmly whatever is grasped. This instrument is employed for the extraction of foreign bodies lodged in the conjunctiva, in the extirpation of pterygium, or for the removal of opake capsule after the extraction of the lens. Fig. 4. Daviel's Curette, which is represented at the upper part of this instrument, should be made of gold or silver, in order to prevent its rusting. The round curved needle at the upper extremity of the handle is commonly employed for di- viding the capsule in the extraction of the len s. Fig. 5. Mr. Saunders' needle, for dividing the lens in the operation of Keratonyxis, Its length from the point to the extremiyt of the shoulder next the handle, is one inch and an eighth. From the shoulder to the centre of the blade, it is round;