A treatise on the principles and practice of ophthalmic medicine and surgery / by T. Wharton Jones.

  • Thomas Wharton Jones
Date:
1865
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on the principles and practice of ophthalmic medicine and surgery / by T. Wharton Jones. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

    815/888 (page 737)
    rue degree by the nature of the injury, depend also very lch on the age and constitution of the patient. Treat mint.—See Traumatic Ophthalmia, p. 2.j(), et seq. It is to be here observed that a certain degree of iu- mmatory congestion is excited by an injury, and will itinuo until the healing process is completed, being a cessary condition for the supply by exudation of the uph necessary for that purpose (p. 98). It is vain, irefore, as well as improper to attempt the resolution of ■s due degree of inflammation. It is only to moderate due inflammatory action thai interference is called for. e distinction between due and undue must he learned experience under the guidance of the principles pre- iusly laid down. 2nd.—Chemical injuries. !i.ccording to their degree of concentration, and the .gth of time they have been allowed to remain in the ), bodies chemically active may simply excite moro or ■3 severe inflammation, internal as well as external; or y at once produce very material organic injury, which of course also followed by inflammation. Chat the conjunctiva can bear a great deal in this way ] proved by the strong irritants,—such as nitrate of ver ointment, or oven nitrate of silver in substance,— piently applied to it by way of treatment, and by the jumstauce that melted pitch, tallow, and even lead, ve fallen into the eye, without any bad ultimate result. some cases, however, the effects of the action of such rats are both severe and destructive. The chemical agents, the intrusion of which into the i not unfrequently occurs, are lime, mineral acids, and like, or burning hot substances. jime.—According as it is in the state of quick lime, •ced lime, or mortar, and according to the quantity in- ded into the eye, and the length of time it has lain re, so will be the extent of the injury. Itiuick lime is very fatal to the eye. Not only is the lthelium of the conjunctiva and cornea immediately omposed, but their proper substance may bo more or |; completely destroyed, and the eye for over rendered less. laked lime does not produce such immediate mischief. I i conjunctiva and cornea are thickened, and rendered 3 i: