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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    ing life by folds falling together. Canal begins i in. from ora serrata, runs to border of lens and extends -f2 in. along post, capsule toward pole (?). VITREOUS HUMOR, HYALOID BODY, OR CORPUS VITREUM. [Gr. uaAo?, glass, and eiSo?, like. Lat. vitreum, glass.] Fills interior of eyeball behind lens. Struct- ureless, gelatinous substance containing nuclei and cells (chiefly in peripheral parts) and con- nective-tissue filaments. Cells round, oval, stellate (?), nucleated and finely granular ; en- dowed with mobility (?). Vitreous appears to have a cortex, composed of concentric layers and a nucleus which lies anteriorly to centre (?) Ca.7ial of Cloquet, ox hyaloid canal (-^'va. diam eter) runs through centre from papilla to lens contains hyaloid artery in fcetal life, of which rudiment sometimes persists. No limiting or hyaloid membrane ; bounded posteriorly by limiting membrane of retina, anteriorly by zonula and post, capsule of lens (?). Ant. sur- face hollowed out, \oxm\r\g fossa hyalqidea or patellaris in which lens rests. Receives nutriment from retina and uveal tract. Has no vessels or nerves. Refractive index 1.336. AQUEOUS HUMOR. Clear, slightly viscid, serous fluid filling