Ophthalmic and otic memoranda / By D.B.St. John Roosa ... and Edward T. Ely.

  • Ely, Edward T. (Edward Talbot), 1850-1885
Date:
[1885]
Catalogue details

Licence: Public Domain Mark

Credit: Ophthalmic and otic memoranda / By D.B.St. John Roosa ... and Edward T. Ely. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    crease of fluids causes pupil to dilate?]: Dil- atation of the Pupil.—Chief causes are in- creased tension, paralysis of third nerve, irri- tation of sympathetic, disease of optic nerve and brain, action of certain drugs, such as hy- oscyamus, belladonna and stramonium. My- driasis generally confined to one eye, and may be uniform or partial. When not caused by drugs, pupil not dilated to maximum and has sluggish action. Myosis [ Gr. /livo), to close.]: Contraction OF THE Pupil.—Caused by irritation of branch of third nerve supplying sphincter of pupil, by paralysis of sympathetic filaments to dilatator of pupil (such as occurs in spinal lesions), by constant work at minute objects (as in watchmaking,) by certain drugs, such as calabar bean, opium, etc. Treatment of mydriasis and myosis depends on cause. HlPPUS [ Gr. tTrTros, horse f ] : is chronic spasm of iris causing rapid, alternating con- traction and dilatation of pupil, independent of stimulus of light. Generally associated with nystagmus. IRIDODONESIS or TREMULOUS IRIS [ Gr. ipis, and Soi/eco, to tremble.]:—is marked by trembling of iris when eye is moved about. Caused by loss of support of crystalline lens from whatever cause. CYSTS OF Iris—rare, and generally result of some injury. Appear as transparent vesi- cles on surface of iris, attached by broad basf