Volume 1

Observations on that disorder of the corner of the eye, commonly called fistula lachrymalis / by Percivall Pott.

  • Pott, Percivall, 1714-1788.
Date:
1758
Catalogue details

Licence: Public Domain Mark

Credit: Observations on that disorder of the corner of the eye, commonly called fistula lachrymalis / by Percivall Pott. Source: Wellcome Collection.

    16/92 (page 8)
    and properly called tears; a conftant fiy cretion of too large a quantity caufes a difeafe, called epiphora, and a deficiency makes the motions of the eye-lids diffi¬ cult and painful. * Although the fluid fecreted by the lachrymal gland is confiderable in quan¬ tity, yet, when it is not fuddenly ex¬ cited by irritation from without or paf* (ion from within, it is fo conftantly and gradually carried off, as to create neither trouble, uneafinefs, nor blemifh. The edge or border of each eye¬ lid is formed by a thin cartilage, the figure and confidence of which keeps the lids properly expanded : thefe car¬ tilages are covered by a thin mem¬ brane, and are called cilia? their lower and internal edge do upon every mo¬ tion of the eye-lids fweep over every point of the furface of the cornea ; and as thefe motions are very frequently performed, and as the fecretion of the lymph