On pigment in the optic disk / by R. Liebreich.

  • Liebreich, Richard, 1830-1917.
Date:
[1865]
Catalogue details

Licence: Public Domain Mark

Credit: On pigment in the optic disk / by R. Liebreich. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    6/8 (page 332)
    such irregularities are met with in the case under examination: the choroid terminates, as normally, at the edge of the optic disk by a well-defined, decply-pigmented border, and does not present the slightest deficiency or irregularity in the epithelial cells. The diminution of pigment toward the peri- phery which we have mentioned above is very slight and uniform in its character, and generally constitutes a very com- mon physiological fact. After this we can only admit that the pigment-cells met with in the papilla were developed in the cellular tissue which in atrophy of the optic nerve replaces the nerve-fibres.