Haag-Streit
Topcon
Zeiss
NIDEK CO.LTD.
Shin Nippon (Rexxam Co. Ltd.)
Keeler (Halma plc)
Luneau Technology
Huvitz Co. Ltd.
66 Vision Tech Co. Ltd.
Costruzione Strumenti Oftalmici
Kowa
Reichert (AMETEK)
ChongQing KangHua S & T Co. Ltd
Shanghai MediWorks Precision Instruments Co. Ltd.
Suzhou Kangjie Medical Inc. Co.Ltd