Examples of Accommodation Evaluation with the Tracey 3-D Difference Maps Tracey Technologies, Corp.

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Presentation transcript:

Examples of Accommodation Evaluation with the Tracey 3-D Difference Maps Tracey Technologies, Corp.

DIFFERENCE Normal Accommodation – 30 Y/O Refraction Map Refraction MapNEARDISTANCENEAR

Normal Accommodation 3D Refraction Map (Tilted) DIFFERENCE NEARDISTANCE

Normal Accommodation 3D Refraction Map (Vertical) DIFFERENCE NEARDISTANCE

DISTANCE Mean = +0.4D 1.2DRefractive Range Range Hyperopia Hyperopia Myopia

Normal Accommodation 3D Refraction Map (Vertical) NEAR Mean = -4.2D 3.5DRefractiveRange

Normal Accommodation 3D Refraction Map (Vertical) DIFFERENCE Mean = -4.75D 2.4D Refractive Range

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 (Vertical) DIFFERENCE NEARDISTANCE

DIFFERENCE No Refractive Difference 0.6D Refractive RefractiveRange

MONOFOCAL 33 cm. DISTANCE ACCOMMODATIVE EFFORT NO DIFFERENCE IN PSF

MONOFOCAL Image Simulation 33 cm. DISTANCE ACCOMMODATIVE EFFORT NO DIFFERENCE IN IMAGE

Accommodating IOL in Other Eye 3D Refraction Map DIFFERENCE NEARDISTANCE

Acc. IOL in Other Eye 3D Refraction Map DISTANCE Mean = +1.6D 4.1DRefractive Range Range +2.8D -1.3D

Acc. IOL in Other Eye 3D Refraction Map NEAR Mean = +1.1D 8.6DRefractiveRange +3.8D -4.8D

Acc. IOL in Other Eye 3D Refraction Map DIFFERENCE Mean = -0.4D 5.5DRefractive Range Range +1.1D -4.5D

Acc. IOL 33 cm. DISTANCE ACCOMMODATIVE EFFORT SUBSTANTIAL CHANGE IN PSF

Acc. IOL Image Simulation 33 cm. DISTANCE ACCOMMODATIVE EFFORT SUBSTANTIAL IMPROVEMENT IN NEAR

Acc. IOL 3D Refraction Map DIFFERENCE NEARDISTANCE

DISTANCE Mean =+1.3D 1.9DRefractive Range Range 2.1D 0.2D

Acc. IOL 3D Refraction Map NEAR Mean = +1.2D 5DRefractive Range Range 2.6D -2.4D

Acc. IOL 3D Refraction Map DIFFERENCE Mean = 0.1D 4.2DRefractiveRange 1.4D -2.8D

Acc. IOL 3D Refraction Maps DIFFERENCE NEAR DISTANCE-3.5D -3.5D

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.