Openable attachment sunglass to the spectacles
Ophthalmic device using a single linearly polarizing element
Optical accessory for spectacles
Optical accessory for use with spectacles
Optical arrangements for reading deficiencies
Optical device for aiding color-blind persons in distinguishing
Optical device for post-operative cataract patients
Optical device for pre-operative cataract patients
Optical device for pre-operative cataract patients
Optical filtering element
Optical filtering element including fluorescent material
Optical grid
Optical inserts for goggles or facemasks
Optical instrument for aiding eyesight
Optical lens structure and control system for maintaining a sele
Optical plastic and glass lens assembly for use in an eyewear fr
Optical prescription insert carrier
Optical toy device and method of manufacturing thereof