Letter of Appreciation
- Letter from Mr Rick Van Rynne
- Letter of Thanks from Josep Guell
- Congratulation letter from Prof.George Waring for the Lifetime Achievement Award
- Letter of Thanks from Keiki R. Menhta Chairman meeting Eye Advance 2006
- Letter of Appreciation (PAACO-2003)
- Letter of Thanks from Georg Gerten
- Congratulation letter of Proffessor Ch. Lioni for the awar of Binkhorst medal
- A word of thanks