I have decided to use HOYA as my main supplier of spectacle lenses .
They are a global manufacturer of spectacle lenses and their "unparalleled technology creates a profoundly clear vision experience for the progressive/varifocal lens wearer".
They are :
No.1 in Japan for ophthalmic eyeglass lenses
No.1 in the world for optical lenses for electronic devices
HOYA's premium iD lenses can be individually designed for you; your unique visual and lifestyle requirements can be integrated in the lens to provide you with the most comfortable and accurate vision.