Directional microphone for head mounted midget hearing aids

Disposable/reusable sun filter

Diving mask with lenses and method of fabricating the same

Double biased eyeglass nosepiece

Double toroid flexible lens eyewear for cyclists

Dual mount adapter

Dual rate spring-action eyewear temple

Dual temple system for eyewear

Dual-purpose nose pad insert assembly

Durable eyeglasses frame assembly

Dynamically stabilized contact lenses

Dynamically stabilized contact lenses

Ear defenders

Ear insert hearing aid

Ear-ring hearing aid

Earstem for eyeglasses

Edge coating for laminated lenses

Elastic constraint system for eyeglasses assembly and...

Elastic spring element for attaching the eyeglass temple to...

Electric connection configuration for electro-optical device