Optical Enterprise, Inc.

Optical Sciences Group, Inc.

Optical Systems International Inc.

Optical Ventures, Inc.

Opticast International Corporation

Opticlear Inc.

Opticol Corporation

Opticorp, Inc.

Optifashion S.r. L.

Optigen S.r.l.

Optik Partner AG & Co.

Optimieyes Limited Partnership

Optisch Werke G. Rodenstock

Optische Werke G. Rodenstock

Optische Werke Rodenstock

Optiunion Co., Ltd.

Optotech Optikmashinen GmbH

Optotechnik Heine KG

Optyl Eyewear Fashion International Corporation

Oracle Lens Manufacturing Corporation