Defective eyesight : the principles of its relief by glasses / by D.B. St. John Roosa.

  • Roosa, D. B. St. John (Daniel Bennett St. John), 1838-1908.
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Defective eyesight : the principles of its relief by glasses / by D.B. St. John Roosa. Source: Wellcome Collection.

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    vertigo, by correcting glasses - Bonders upon the value of glasses for general symptoms - Relief from nausea by the use of glasses —Illustrative cases . CHAPTER VII General Remarks as to Lenses General remarks as to spectacles and eyeglasses - Periscopic and toric lenses-Use of glasses iu the amblyopia of strabismus-Anisometropia-The dioptric systeni for measuring glasses — Bifocal or Franklin glasses —Knid of artificial light that should be used for close work — Summary of method in testing defective vision PAGE 117 160