Optometry Cabinet (With Lenses)
Credit LineGift from St. Joseph's Health Care London, 2008.
Object number2008.005.225
Label TextThis cabinet stores rows of optical lenses. These lenses are used in eye exams to determine if someone has any optical aberrations. The exam determines what kinds of lenses will be needed if the patient requires eyeglasses. The lenses here have three different shape variations: concave, convex, and cylindrical. Concave lenses are used to correct nearsightedness, convex lenses correct farsightedness, and cylindrical lenses correct astigmatism.
NameCase, Optical Instrument
c. 1945
c. 1920s
LONDON MANUFACTURING CO.
c. 1825-1850