Defects of sight and hearing : their nature, causes, prevention, and general management / by T. Wharton Jones.

  • Thomas Wharton Jones
Date:
1859
Catalogue details

Licence: Public Domain Mark

Credit: Defects of sight and hearing : their nature, causes, prevention, and general management / by T. Wharton Jones. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    DEnOTO OF si<;nr. ted to, at least in operations with the needle. | \ mixture of one part of pure chloroform with three or four parte of Bulphurio ether, is preferred to either chloroform or folphuric ether alone.] The vomiting which is npt to supervene is a Btrong objection to its employment in ex- traction. ';/' the //><ir best adapted for Operation* for ■ in.—Operations tor cataract may be performed dur- ing mild and steady weather at any season ; ami such weather usually occurs from March to the end of October. /' riiion of tin Patient.—The patient may either sit on a chair, or lie extended on a sofa or table with a pillow Under his head. In operating on the eye, it is of the greatest moment to I light. A window directed to the north should, if possible, !»• chosen. If tlure he more than one window iu the room, the others should have the curtains drawn. Opening and securing of the eyelids,—The patient, b tant, and operator being in their places, the next business is to open and secure the eyelids'. The proper sccurinir of the eyelids is a most important point. As some uneasiness attend- this, the patient is apt to flinch at it. It is, there- fore, advisable to accustom the patient to the necessary handling of the eyelids in opening and securing them by practising the manipulation daily for two or three days before the operation, the patient being at the same time 1 a- it is proposed he -In.ubl be at the time when the operation is actually performed. Extraction of tin; Cataract. In the common hard lenticular cataract of old persons, the operation it is most advisable to perform, when circuin-