A treatise on the principal diseases of the eyes; containing a critical and candid examination of the antient and modern methods of cure, of the present defective modes of practice, with an account of new, mild, and successful methods for the cure of diseases of this organ / By William Rowley.
- Rowley, William, 1742-1806
- Date:
- 1773
Licence: Public Domain Mark
Credit: A treatise on the principal diseases of the eyes; containing a critical and candid examination of the antient and modern methods of cure, of the present defective modes of practice, with an account of new, mild, and successful methods for the cure of diseases of this organ / By William Rowley. Source: Wellcome Collection.
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![{ *56 ] amply compenfated, by having a clear and diftindt vifion in old age. Thofe perfons who have their eyes nei¬ ther too convex nor too flat, may be con- fidered to have the ftrongeft and moft du¬ rable eyes; in fuch, no methods whatever ought to be applied to affift vifion, unlefs requifite from the moft abfolute neceflity. In all other cafes nature ought to be our guide, and we fhould never have recourfe to artificial aids, till iome defedt in vifion juftifies our attempts to obtain relief. The moft general caufes of a defedt in vifion are owing to intenfe ftudy, particularly by candle-light; to working fine needle-work; to too dole an attention to cur modern amufement, cards; to exceflive grief; and frequent fhedding of tears; fudden cold air ; a falfe light, as in fome of our count- ingrhoufes in the city; from frequently ri¬ ding in a coach when the glafles are up; from a dilatation and contraction of the pupil from various caufes *; from an alte¬ ration in the colour of the chryftaline lens, * A dilatation fometimes happens from the palfy, and I have known an inftance of a contracted pupil caufing blindnefs from too clofe an attention to fine needle-work* which.](https://iiif.wellcomecollection.org/image/b31960911_0176.jp2/full/800%2C/0/default.jpg)