1. Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering

2. Baylor Clinical Study 100 Eye Study – Comparison of Tracey Refraction Values with Manifest Refraction Done Under Supervision of Mitch Weikert, MD and Doug Koch, MD Baylor College of Medicine, Houston

3. Baylor Clinical Study (100 eyes) -13D +7D

4. Baylor Clinical Study (100 eyes)

5. Baylor Clinical Study

6. Physical Object Testing Study to determine accuracy and reproducibility of i Trace measuring spherical lenses, cylinder lenses, induced spherical and coma aberration and calibrated phase plates Jim Schiegerling, PhD, Optical Science Center, University of Arizona, Tucson

7. University of Arizona (Physical Testing)

10. Accommodation Measurement with Tracey Technologies i Trace Only aberrometer that allows true distant and near point measurement (through instrument viewing) of wavefront and refraction (difference display shows accommodation) Data show excellent agreement between i Trace measurements and standard pushup test over range of 1D to 4D of accommodation as tested by Dr. Adrian Glasser

11. Variations in Mapping Accommodative Power in the Natural Crystalline Lens as Measured by iTrace Vertical Cyl Horizontal CylPiston Coma

12. Accommodation and Lenticular Aberrations Accommodative Power Far Aberrations Refraction Difference Map Near Aberrations Horizontal Cyl

13. Accommodation and Lenticular Aberrations Accommodative Power Refraction Difference Map Far Aberrations Near Aberrations Coma

14. Accommodation and Lenticular Aberrations Accommodative Power Refraction Difference Map Far Aberrations Near Aberrations Vertical Cyl

15. Crystalens Accommodative Arching 73 Year Old Male Overall Refraction change is 0.5D but Central Cylinder 2.5 D adds Depth of Field to Enhance Accommodative Effect

16. Accommodation Study Planning a 300-500 eye study over a range of ages to measure “accommodation types” in natural crystalline lens as a function of age Plan additional work with doctors and manufactures of accommodative IOLs