The refraction of the eye : a manual for students / by Gustavus Hartridge.

  • Gustavus Hartridge
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: The refraction of the eye : a manual for students / by Gustavus Hartridge. Source: Wellcome Collection.

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    that when the eyes become tired they may be rested by turning them from the light. The stooping position must be strictly avoided, as it causes an increased flow of blood to the interior of the eyeball, and at the same time, by compressing the veins in the neck, obstructs the returning blood, and so pro- duces hyper£emia with symptoms of irritation, and possibly some slight increase of tension. When reading or writing he should sit with his back to the window, so that the light may fall on the book or paper over his left shouldei', the shadow of his pen being thus thrown to the right, enabling him to see plainly the letters he is forming. Attention must be paid to the general health; iron internally often being especially useful, combined with regular outdoor exercise and good nutritious food. When symptoms of irritation show themselves, with a rapid increase in the myopia, complete rest must be given to the eyes, and in no way can this be so conveniently carried out as by dropping into the eyes a solution of atropine (gr. ] to 5j) three times a day, for some two or three weeks; counter-irritation may be applied to the temples and behind the ears in the shape of small blisters, or by a solution of iodine : no spectacles must be allowed. Sometimes, where there are symptoms of congestion present, the artificial leech applied to the temple once a week for a few weeks does much good. As the irritation gradually subsides, the patient may be allowed to do a little reading daily in a good light, the eyes all