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.

    61/326 (page 39)
    ward, curve varying in different subjects; £-£ in. long, about i in. diameter ; generall) opens in inferior meatus nose, just below attachment inf. turbinated bone, sometimes lower : shape of opening varies with situation. Lined by thick mucous membrane covered with pavement and ciliated epithelium. En- closed by very vascular network connective- tissue and elastic fibres, and, external to this, tendinous sheath, strengthened above by off-shoots from post, surface palpebral ligament and sheath of Horner's muscle. Arteries and nerves of lachrymal apparatus are small twigs from neighboring trunks. Gland receives lachrymal artery from oph- thalmic, and lachrymal nerve from 5th. Nerve governs secretion. [Hence flow 01 tears from mental states and from injury.] SENILE CHANGES. Are observed in most of the tissues of the eye. The sclerotic presents calcareous de- posits, and a loss of elasticity favoring glau- coma. Cornea becomes smaller and thinner and loses tone ; elastic laminae become brittle and present warty elevations at mar- gins. After 50 (rarely before), arens senilis [Lat. for senile bow], orgerontoxon [Gr. yepu>v. eld man, and rognv, bow], appears, as result ci fatty degeneration : begins on upper and lower margins in form of two superficial.