According to description of Catalan Encyclopedia
 
1-Relative or pertaining to eyes or vision. Optic nerve
 
2-Relative or pertaining to optics.
 Specialist in optics.
 Instrument manufacturer or optical crystals.
 
3-Part of the physics that studies phenomena related to light and vision.
 
4- System or set of optical systems of a device, of an instrument, especially those used in photography and in cinematography.
 Manufacture, trade in optical instruments, lenses, glasses, magnifiers, microscopes, etc.
 Establishment where optical instruments are sold, especially glasses and lenses, and where the view is also measured.