On the morbid sensibility of the eye, commonly called weakness of sight / by John Stevenson.

  • John Stevenson
Date:
1811
Catalogue details

Licence: Public Domain Mark

Credit: On the morbid sensibility of the eye, commonly called weakness of sight / by John Stevenson. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    in a similar manner, in the former instance from the burning sands, in the latter from the snow P Nor is total loss of sight an uncommon incident among the inhabitants of the more northern lati- tudes, where the earth is, during the greater part of the'year, enveloped in continual snow. “ Xenophon relates,” says Mr. Boyle, Vol. I. p. 698, u that Cyrus marching his army for divers days tlirough mountains covered with snow, the dazzling splendour of its white- ness prejudiced the sight of many of his soldiers, and blinded some of them ; and other stories of that nature may be met with in writers of good note.” To obvi- ate the alarming, and often suddenly destructive, influ- ence of too much reflected light, (when the sun is above the horizon during spring,) the cautious traveller finds it expedient to cover his eyes with crape. Experience has also taught the unlettered savage the rude invention of framing a little wooden case (called by the Esqui- maux of Hudson’s Bay, Yeux a la neige), with oidy two narrow slips, which he wears over his eyes, in order to secure them from the well-known and dreaded effects of an excess of light. Voyez l’Histoire general des Voyages par la Harpe, in 8vo. Vol. xiv. p. 214; also Ellis’s Voyage to Hudson’s Bay. c 2
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