Toric multifocal contact lenses

Toric multifocal contact lenses

Toric ophthalmic lenses having selected spherical aberration...

Toric surfacecasting

Transducer for head worn hearing aid

Transistor amplifier hearing aid unit with receiver...

Transistor hearing aid

Translating bifocal wear modality

Translating contact lens having a ramped ridge

Translating multifocal ophthalmic lenses

Transparent and polarizing viewing element having a zone...

Transparent and polarizing vision element having areas which...

Transparent optical component with cells separated by walls

Transparent pixelized optical component with absorbing...

Trifocal lense

Trifocal ophthalmic lens blank series

Truncated diffractive intraocular lenses

Two-element variable-power spherical lens