Cosmetic contact lens
Cosmetic holographic optical diffractive contact lenses
Counterpoised cranial support for eyewear
Coupler for auxiliary lenses
Coupling construction of a frame of spectacles and a coupling ho
Coupling device for eyeglasses
Coupling device with breakaway and methods of using the same
Coupling device with breakaway and methods of using the same
Coupling system for assembling a spectacle frame and the side-pi
Coupling system for securing a one-piece lens to temples
Coupling system for securing an eyeglass frame to a cap visor
Cross-spring-joint for side-pieces of spectacles
Crossed cylinder lenses refractor and method of use
Crossed cylinder lenses refractor with three-lens variable cross
Crosslinking of silicones presence of functionalized silicones
Crystalline polymeric compositions for ophthalmic devices
Cupola-type ophthalmological apparatus the visual field and the
Curable composition and photochromic cured article
Curvature measuring apparatus
Curvature measuring optical system in ophthalmometer