(under subclass 204.15) Subject matter which provides a means for producing a strain upon the muscles which focus the lens or which direct the eye's line of sight so as to treat visual disorder or abnormality of the eye.
(1) Note. This subclass includes devices such as moving targets which the patient follows with one or both eyes to exercise or strengthen defective muscles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25, for devices wherein the eye is forcibly exercised.
SEE OR SEARCH CLASS
351, Optics: Eye Examining, Vision Testing and Correcting,
203, for eye examining and testing instruments combined with eye exercising or training.
