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Examples of Accommodation Evaluation with the Tracey 3-D Difference Maps. Tracey Technologies, Corp. Normal Accommodation – 30 Y/O Refraction Map. DISTANCE. NEAR. NEAR. DIFFERENCE. Normal Accommodation 3D Refraction Map (Tilted). DISTANCE. NEAR. DIFFERENCE.

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examples of accommodation evaluation with the tracey 3 d difference maps
Examples of Accommodation Evaluation with the Tracey 3-D Difference Maps

Tracey Technologies, Corp.

slide2

Normal Accommodation – 30 Y/O

Refraction Map

DISTANCE

NEAR

NEAR

DIFFERENCE

normal accommodation 3d refraction map vertical1
Normal Accommodation 3D Refraction Map (Vertical)

DISTANCE

Hyperopia

Mean = +0.4D

1.2D

Refractive

Range

Myopia

normal accommodation 3d refraction map vertical2
Normal Accommodation 3D Refraction Map (Vertical)

NEAR

Mean = -4.2D

3.5D

Refractive

Range

normal accommodation 3d refraction map vertical3
Normal Accommodation 3D Refraction Map (Vertical)

DIFFERENCE

Mean = -4.75D

2.4D Refractive Range

observations in normal accommodation and near point focus
Observations in Normal Accommodation and Near Point Focus
  • Refraction shifts to More Myopia as Accommodation is defined as a purely Spherical offset
  • Refractive Range Increases (i.e. More Depth of Field – Psuedo Accommodation)
monofocal iol 3d refraction map vertical1
Monofocal IOL 3D Refraction Map (Vertical)

DIFFERENCE

No Refractive Difference

0.6D

Refractive

Range

slide11

MONOFOCALPSF @ 33 cm.

ACCOMMODATIVE EFFORT

DISTANCE

NO DIFFERENCE IN PSF

slide12

MONOFOCALImage SimulationView @ 33 cm.

ACCOMMODATIVE EFFORT

DISTANCE

NO DIFFERENCE IN IMAGE

acc iol in other eye 3d refraction map
Acc. IOL in Other Eye 3D Refraction Map

DISTANCE

+2.8D

4.1D

Refractive

Range

Mean = +1.6D

-1.3D

acc iol in other eye 3d refraction map1
Acc. IOL in Other Eye 3D Refraction Map

NEAR

+3.8D

Mean = +1.1D

8.6D

Refractive

Range

-4.8D

acc iol in other eye 3d refraction map2
Acc. IOL in Other Eye 3D Refraction Map

DIFFERENCE

+1.1D

5.5D

Refractive

Range

Mean = -0.4D

-4.5D

slide17

Acc. IOLPSF @ 33 cm.

ACCOMMODATIVE EFFORT

DISTANCE

SUBSTANTIAL CHANGE IN PSF

slide18

Acc. IOL Image SimulationView @ 33 cm.

ACCOMMODATIVE EFFORT

DISTANCE

SUBSTANTIAL IMPROVEMENT IN NEAR

acc iol 3d refraction map
Acc. IOL 3D Refraction Map

DISTANCE

NEAR

DIFFERENCE

acc iol 3d refraction map1
Acc. IOL 3D Refraction Map

DISTANCE

2.1D

1.9D

Refractive

Range

Mean =+1.3D

0.2D

acc iol 3d refraction map2
Acc. IOL 3D Refraction Map

NEAR

2.6D

5D

Refractive

Range

Mean = +1.2D

-2.4D

acc iol 3d refraction map3
Acc. IOL 3D Refraction Map

DIFFERENCE

1.4D

Mean = 0.1D

4.2D

Refractive

Range

-2.8D

acc iol 3d refraction maps

-3.5D

-3.5D

Acc. IOL3D Refraction Maps

NEAR

DISTANCE

DIFFERENCE

summary
Summary

The Examples above demonstrate that the Tracey 3-D Refraction Maps with Difference Map Objectively quantifies both Accommodation and Psuedo Accomodation Refractive changes in the normal and psuedophakic Eye.

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