1. Appasamy Associates
2. Canon Inc.
3. DGH Technology Inc.
4. Ellex Medical Laser Ltd.
5. Halma PLC
6. Heidelberg Engineering Inc.
7. Keeler
8. Koninklijke Philips N.V.
9. Micro Medical Devices Inc.
10. Nidek Co. Ltd.
11. Nikon Corporation
12. Optos PLC
13. Quantel Medical
14. Sonomed Escalon
15. Suowei Company