Subject matter under subclass limited to process for measuring and determining the curvature of a patient's eyeball so that the bearing surfaces of a contact lens may be made to fit the eyeball accurately.
(1) Note. The above fitting processes may include photographing the eye, projecting a silhouette of the contour of a mold or cast, or otherwise making accurate eye measurements to fit contact lenses of suitable shape and characteristics to the eye. Included also here are methods for fitting contact lenses by taking molds of the eye and
forming an eye fitting cast of the mold.
(2) Note. When modification of the contact lens such as grinding, polishing or otherwise altering the shape of the lens is done concurrently with and necessary to the fitting, as opposed to the making of the preliminary blank, classification is in this subclass. However, subclass 177 below provides for methods of making contact lenses with the scope of its subclass definition where no fitting of the lens is involved.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160, for eye contact lenses, per se.
177, for methods making contact lenses generally. (See (2) Note above.)
178, for methods of making spectacles and eyeglasses generally. SEE OR SEARCH CLASS
