+ All Categories
Home > Documents > Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

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

Date post: 04-Jan-2016
Category:
Upload: myra-reynolds
View: 212 times
Download: 0 times
Share this document with a friend
16
Tracey Technologies AAO Tracey Technologies AAO 2004 2004 Advisors Group Breakfast Advisors Group Breakfast Tom Padrick, PhD Tom Padrick, PhD Director of Engineering Director of Engineering
Transcript
Page 1: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Tracey Technologies AAO 2004Tracey Technologies AAO 2004Advisors Group BreakfastAdvisors Group Breakfast

Tom Padrick, PhDTom Padrick, PhD

Director of EngineeringDirector of Engineering

Page 2: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Baylor Clinical StudyBaylor 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

Page 3: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Baylor Clinical Study Baylor Clinical Study (100 eyes)(100 eyes)

-13D

+7D

Page 4: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Baylor Clinical Study Baylor Clinical Study (100 eyes)(100 eyes)

Page 5: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Baylor Clinical StudyBaylor Clinical Study

Page 6: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Physical Object TestingPhysical Object Testing

Study to determine accuracy and reproducibility of iTrace measuring spherical lenses, cylinder lenses, induced spherical and coma aberration and calibrated phase plates

Jim Schiegerling, PhD, Optical Science Center, University of Arizona, Tucson

Page 7: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

University of Arizona University of Arizona (Physical Testing)(Physical Testing)

Page 8: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

University of Arizona University of Arizona (Physical Testing)(Physical Testing)

Page 9: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

University of ArizonaUniversity of Arizona (Physical Testing)(Physical Testing)

Page 10: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Accommodation Measurement withAccommodation Measurement withTracey Technologies Tracey Technologies iiTraceTrace

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 iTrace measurements and standard pushup test over range of 1D to 4D of accommodation as tested by Dr. Adrian Glasser

Page 11: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Variations inVariations in

Mapping Mapping

AccommodativAccommodativee

Power in the Power in the

Natural Natural

Crystalline Crystalline LensLens

asas

Measured byMeasured by

iTraceiTrace

Vertical Cyl

Horizontal Cyl Piston

Coma

Page 12: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Accommodation and Lenticular Accommodation and Lenticular AberrationsAberrations

Accommodative Power

Far Aberrations

Refraction Difference Map

Near Aberrations

Horizontal Cyl

Page 13: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Accommodation and Lenticular Accommodation and Lenticular AberrationsAberrations

Accommodative Power

Refraction Difference Map

Far Aberrations Near Aberrations

Coma

Page 14: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Accommodation and Lenticular Accommodation and Lenticular AberrationsAberrations

Accommodative Power

Refraction Difference Map

Far Aberrations Near Aberrations

Vertical Cyl

Page 15: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Crystalens Accommodative ArchingCrystalens 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

Page 16: Tracey Technologies AAO 2004 Advisors Group Breakfast Tom Padrick, PhD Director of Engineering.

Accommodation StudyAccommodation 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


Recommended