Burke Vision Lab

Contrast Sensitivity
Function Test

This test measures how well you see patterns at different sizes and contrasts — a more complete picture of your vision than an eye chart alone.

You'll need two devices: a large screen to display the targets and a phone or tablet as your controller.

Remote

Display

What is this device?

Remote

This phone or tablet stays with you, 20 ft from the display

Recommended: phone

Display

This screen shows targets you'll view from 20 ft away

Recommended: PC monitor or large tablet

Phone screens are too small for the test display

You'll set up and sync both devices to each other in the next steps.

Setting Up the Remote

This device will be your controller. Now let's sync it to the display.

Your pairing code

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On your display (PC or tablet), open then tap Begin Setup → Display → enter this code

Waiting for display…

or

Already have a code from your display?

Setting Up the Display

This screen will show the targets you'll view from a distance. Now let's sync it to a phone or tablet you'll hold to input your answers.

Enter code from your phone

or

Don’t have a code yet?

Step 1 of 5

Physical Scale

Hold any card from your wallet — loyalty card, ID, or credit card — to the screen and match the rectangle to the card's width.

Smaller300 pxLarger

Step 2 of 5

Setup Type

Will the patient view this screen through a mirror?

Step 3 of 5

Luminance

Adjust until the circle disappears into the pattern

Darker128Brighter

Step 4 of 5

Viewing Distance

Enter distance from eyes to screen

Minimum 15 ft required. 20 ft+ preferred for clinical accuracy.

Step 5 of 5

Confirm

MirrorOff

Gamma128

Scale-

Distance-

Resolution-

Check your phone

Gabor 6-AFC

0 / 50

Area Under Log CSF

0.00

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This tool is for educational and informational purposes only and is not a substitute for a professional eye examination. Results may vary based on screen calibration, ambient lighting, and testing conditions. Do not use these results to make medical decisions. If you have concerns about your vision, please consult a licensed eye care professional.