Heated eyewear
Hemianopsia rehabilitation training system
Heterocyclic chromenes and their use in the field of ophthalmic
High electron mobility single heterojunction semiconductor devic
High index ophthalmic glasses
High refractive index glasses, multifocal corrective lenses...
High strength ophthalmic lens
High strength ophthalmic lens
High voltage semiconductor devices electrically isolated from an
High water content silicone hydrogels
High-index, organic lens member
High-tension thread fastening structure for eyeglasses frame
Highest-ophthalmic-quality hand-assembled instant multi-focal pr
Highly compact molded eyeglasses having an adjustable bridge...
Highly hydrous soft contact lens and a treating solution for con
Highly oxygen permeable contact lens materials and compositions
Highly refractive copolymer of an ethylinically unsaturated alky
Highly visible markings for contact lenses
Highly-compact eyeglasses
Highly-refractive plastic lens