A treatise on the operations for the formation of an artificial pupil; in which morbid states of the eye requiring them, are considered : and the mode of performing the operation, adapted to each peculiar case, fully explained; with an account of the opinions and practice of the different foreign and British authors who have written on the subject / by G. J. Guthrie.

  • Guthrie, G. J.
Date:
1819
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the operations for the formation of an artificial pupil; in which morbid states of the eye requiring them, are considered : and the mode of performing the operation, adapted to each peculiar case, fully explained; with an account of the opinions and practice of the different foreign and British authors who have written on the subject / by G. J. Guthrie. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    Figs. I. 2. 3- 4 The coreoncion of Langenbeck ill four parts, to shew its mechanism. Fig 1. The shaft of the instrument, a. the screw worm to. which the cap or end Fig. 2 is affixed, b. the projection or ring against which the finger rests to steady the instrument ; c the opening in the shaft to admit the motion forwards and back- wards of the knob b. Fig. 4. 2. a, the end of the instrument which fits on to the screw in the handle a. Fig. 1, and containing the hook. b. a fine gold tube only large enough to receive the hook. c. the hook which can be projected for two lines only d. The shaft of the hook by which it is affixed in the spi- ral wire, fig. 4. 3. This figure shews the golden tube and hook separated from the handle or shaft of the instrument. a. the joining of the golden tube. b. the hook and snatt. 4. The spiral spring made of wire, which is received into the shaft of the instrument, fig. ]. ' m 1_ a. the ring in which the moveable knob b. is affixed, after the spring has been introduced. 5. The lriankistron of Dr. Schlagintweit. a. the honk. 1 ' , ^ , b. the slider, making, when pushed forwaidsto the hook, a kind of forceps. . , c. the screw whiqh being put through a small groove in the slider and fastened to the neck of the hook at d, admits of the slider's or fgrcep's blade being pushed forwards or drawn backwards to the extent of the groove.or hollow that the nock of the screw plays in. e. the ring or joint which unites the different parts of the instrument. 6. a. Dr. Rei singer's double hooked forceps. I I, a single limb,-side view 7. Dr. Embden's Raphiankistron '■ - . a. the straight cataract needle in the shape of a lancet, on the surface of which, the hook lies. The instrument is de- lineated in the slate in wh.ch it is to be used. c. the hook and needle fitting so closely, as to form but one shaft, d. the opening in the broad part of the neck of the hook. e. the S-ew by which the hook is so connected w.th the needle, as to admit of its being moved backwards and forwards, /. the end of the neck of the hook, provided with a hole»«to which the knob ?. is received, h the part of the neck of the hook which lies in a hollow of the handle, i. i. a flat surface n the handle, which is as deep as the hollow, m order to a low the knob to be fixed on either side. *. the ring under wh.ch the necX of the hook may be freely moved. 8 Graefe's Goreoncion, or double hooked forceps. - ' a. the moveable ring, which closes the hooks b. b. the two hooks e.c. the two shafts or limbs of the hooks, o The iris sealpel of the middle size of the shops, being the lar- 9 TLt which should ever be used in the operation for dividing the iris; pointed but cutting only on one side.