Magnet structure of eyeglasses assembly having auxiliary...

Magnetic auxliary eyewear clip-on-lenses

Magnetic insert earphone and inserts therefor

Magnetic insert earphone insertable in the ear of the user

Magnetic shelter frame for glasses

Magnetically attached auxiliary lens for spectacles

Magnifying glass having a variable focus, variable...

Magnifying spectacles

Makeup eyeglasses

Manufacturing method for spectacles and spectacles obtained...

Manufacturing of positive power opthalmic lens

Marked contact lens bearing optical marking element

Markings for contact lenses

Materials and methods for producing lenses

Means and techniques for producing sensations in the brain

Means for aiding hearing by electrical stimulation of the...

Means for controlling the progression of myopia

Mechanical amplifier

Melanin hydrophilic contact lenses

Metal cutting apparatus and method