Contrast Sensitivity Test
Evaluate your ability to distinguish between subtle differences in contrast. This is different from visual acuity and measures how well you can see in low-contrast conditions.
Contrast Threshold Test
Below are several rows of letters with decreasing contrast. Identify the lowest contrast row where you can still read all the letters.
Row 1 (100%): R H N D V
Row 2 (80%): S E K Z P
Row 3 (60%): F T B M L
Row 4 (40%): A C G W Y
Row 5 (20%): X O J I U
Row 6 (10%): Q P E N H
What is the lowest row where you can read all 5 letters?
Contrast Sensitivity Results
You can read down to Row 0 (0% contrast).
Contrast sensitivity is different from visual acuity (which measures how small of details you can see). Contrast sensitivity measures how well you can distinguish an object from its background when they're similar in brightness.
Good contrast sensitivity is particularly important for:
- Driving at night or in fog
- Reading low-contrast text
- Recognizing faces
- Navigating in low-light conditions