A treatise on some practical points relating to the diseases of the eye / by the late John Cunningham Saunders; to which is added, a short account of the author's life, and his method of curing the congenital cataract, by his friend and colleague, J. R. Farre. The whole illustrated by colour engravings.

  • Saunders, John Cunningham, 1773-1810.
Date:
1811
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on some practical points relating to the diseases of the eye / by the late John Cunningham Saunders; to which is added, a short account of the author's life, and his method of curing the congenital cataract, by his friend and colleague, J. R. Farre. The whole illustrated by colour engravings. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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    are placed in the margin of the eye-lid in such a direction, that they are a safeguard to the eye, by repelling particles that would otherwise strike on its surface; and they in- crease, under certain circumstances, the dis- tinctness of vision, by intercepting the perpendicular rays of light. If we are led to an examination of the final cause for which the tarsus enters into the composi- tion of the palpebras, wg may conclude, from the event of its extirpation, that it is more 'in relation to the cilia than the muscles. From its firmness and elasticity, it is a support to the other parts of the palpebrae, and a protection to the eye, and its concavity being perfectly adapted to the convexity of the globe, the muscles effect their motions with greater celerity and precision; yet its principal use is to sustain the roots of the cilia on the exterior surface of its ciliary margin, which main- tains a given position, and thus enables the hairs to lie in that direction which was in- tended by nature. It is evident, that the cilia