Observations on hemeralopia; or, Nocturnal blindness, with cases, and practical illustrations / by Andrew Simpson.

Date:
1819
Catalogue details

Licence: Public Domain Mark

Credit: Observations on hemeralopia; or, Nocturnal blindness, with cases, and practical illustrations / by Andrew Simpson. Source: Wellcome Collection.

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

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    lead into a length of disquisition here inadmissi- ble, and notwithstanding, seem unsatisfactory; and as the general doctrine ot the visual faculty, the structure of this organ, and the principal diseases thereof, have already been considered in different publications. And it is supposed that all who undertake the treatment ot its diseases, &c., are well acquainted with its structure and functions. Without this requisite, their assistance must frequently Ik* unavailing, or what is still more unfortunate, their applications will common- ly induce mischievous consequences. This beautiful, but delicate instrument of vision, is liable to accidents immediately applied to itself; or, as frequently happens, it may Ik* influenced in a very important and often inexpli- cable manner, by the occurrence of many sys- tematic complaints; and these occasionally, or rather oftentimes, not manifesting themselves by any extrinsical characters, or intelligible pheno- mena. 'Hie remarkable usefulness of the eye, its ne- cessity in the guidance ot man, even in the common affairs of life, must have always engaged his most particular attention, both for its preser- vation from accidents, and also the obtainment of relief from the consequences of these, when con- tingently experienced. A beautiful and expres- sive comparison is made betwixt the protection of B