Defective vision : its cause and cure / by F.J. Bluett.

  • Bluett, F. J. (Frederic J.)
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Defective vision : its cause and cure / by F.J. Bluett. Source: Wellcome Collection.

    72/100 (page 68)
    to light. It is really inflammation of the iris or coloured portion of the eye. It is a most dan- gerous complaint. The inflammation envelopes the iris and extends to the crystalline lens. Unless it is taken in time, the lens of the eye becomes glued to the iris, and vision is permanently destroyed. Directly Iritis presents itself, the advice of a skilled ophthalmic surgeon should be obtained. Spectacles are of no use whatever until the convalescent stage has been reached, and plane neutral grey tinted spectacles are then required to subdue the light until the eyes become strong. CATARACT. This disease is two-fold—the hard and the soft. The soft can be easily removed by operation, or by absorption, but the latter is a longer process, though a safer one. The hard cataract comes on gradually and can only be removed by operation. Glasses are of little use except in the way of temporary assistance, and have to be frequently changed until an operation has been performed, when strong convex glasses are required, and these really act as the lens of the eye, ' because in operations for cataract, the lens of the eye is sometimes removed altogether. Cataract is due to the gradual depositing of Oxalate of lime in the substance of the crystalline