Novartis AG
Carl Zeiss Meditec AG
Essilor International S.A. HAAG-Streit Holding AG
HOYA Corporation
Johnson & Johnson
Nidek Co. Ltd. Topcon Corporation
Valeant Pharmaceuticals International Inc. and Ziemer Ophthalmic Systems AG. The other players in the industry include Sonomed Escalon
Hoya Group
Gulden Ophthalmics
FCI Ophthalmics
Glaukos Corporation
and STAAR Surgical