Vision testing with rendered digital imagery modification under viewer control
First Claim
1. A method comprising:
- using vision-realistic rendering based on aberration data to produce a rendered digital image;
presenting a person with the rendered digital image;
accepting input from the person, through at least one of the following;
a touch screen, a light pen;
changing the refractive sharpness of the rendered digital image in response to input accepted from the person; and
calculating information about the person'"'"'s vision based at least on;
input from the person leading to a refractive sharpness change made during the changing step, and a refraction model which relates visual acuity to changes in the refractive sharpness of rendered digital imagery.
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Abstract
Tools and techniques for vision testing alter refractive characteristics of rendered digital imagery and use feedback from a test subject to calculate information about errors in the subject'"'"'s vision. Some embodiments produce a rendered digital image with vision-realistic rendering, present the test subject with the rendered digital image, accept input from the test subject and change the refractive sharpness of the rendered digital image in response to the input. Then they calculate refractive errors or other information about the test subject'"'"'s vision based at least on: input from the test subject leading to a refractive sharpness change made during the changing step, and a refraction model which relates visual acuity to changes in the refractive sharpness of rendered digital imagery.
39 Citations
20 Claims
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1. A method comprising:
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using vision-realistic rendering based on aberration data to produce a rendered digital image; presenting a person with the rendered digital image; accepting input from the person, through at least one of the following;
a touch screen, a light pen;changing the refractive sharpness of the rendered digital image in response to input accepted from the person; and calculating information about the person'"'"'s vision based at least on;
input from the person leading to a refractive sharpness change made during the changing step, and a refraction model which relates visual acuity to changes in the refractive sharpness of rendered digital imagery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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producing, through vision-realistic rendering, a rendered digital image, wherein the producing step uses vision-realistic rendering based on at least one of the following to produce the rendered digital image;
hypothetical aberration data, gathered actual patient aberration data;presenting a person with the rendered digital image at a controlled distance; accepting, through a device, input from the person; changing the refractive sharpness of the rendered digital image in response to input accepted from the person; and calculating information about the person'"'"'s vision based at least on;
input from the person leading to a refractive sharpness change made during the changing step, and a refraction model which relates visual acuity to changes in the refractive sharpness of rendered digital imagery. - View Dependent Claims (10, 11, 12, 13)
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14. A system, comprising:
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multiple processors in operable connection with at least one memory; the processors configured by data and instructions to perform the following; produce, through vision-realistic rendering, a rendered digital image; present a person with the rendered digital image; accept, through a device, input from the person; change the refractive sharpness of the rendered digital image in response to input accepted from the person; obtain a plurality of aberration sets which depend on input from the person and on a refraction model which relates visual acuity to changes in the refractive sharpness of rendered digital imagery; estimate the person'"'"'s accommodation to blurriness based on at least one of the aberration sets; and calculate information about the person'"'"'s vision based at least on;
input from the person leading to a refractive sharpness change made during the changing step, and the refraction model. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification