The Art of preserving the sight unimpaired to extreme old age; and of re-establishing and strengthening it when it becomes weak. To which are added observations on the inconveniences and dangers arising from the use of common spectacles / By an experienced oculist [i.e. G.J. Beer].

  • Beer, Georg Josef, 1763-1821
Date:
1828
Catalogue details

Licence: Public Domain Mark

Credit: The Art of preserving the sight unimpaired to extreme old age; and of re-establishing and strengthening it when it becomes weak. To which are added observations on the inconveniences and dangers arising from the use of common spectacles / By an experienced oculist [i.e. G.J. Beer]. Source: Wellcome Collection.

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    about from the pressure of the air^ throw- ing the light from side to side, a circum- stance even more hurtful than the direct rays of the sun itself. The modern fashion of having the win- dows down to the floor is also not without some serious danger even for healthy eyes; for, the light being thus thrown up from below upon the sight, all the surrounding objects reflect a false light; and this is the more hurtful from its being of a nature diflerent from the broad lights of open day. If, indeed, I was forced to choose be- tween a simple cottage, whose light was moderated through one homely casement, and a magnificent palace deprived of that advantage, my choice would soon be made in favour of that which should be most conducive to the preservation of the visual Whoever finds himself obliged to direct his sight almost constantly to small objects, all lovers of natural history, all painters, and. in short, many artisans, both male