Sector: Visual

Visual Acuity & Color Perception Tests

Explore color patterns, contrast and visual memory with browser exercises. These are not clinically calibrated vision screeners.

Available Modules

Color Blind Test (Ishihara)

Explore patterns in digital color plates. Uncalibrated screens cannot provide a clinical color-vision diagnosis.

Est. Time: 3 min

Contrast Sensitivity Test

Choose the tilt of increasingly faint stripe patterns in an adaptive browser contrast perception exercise.

Est. Time: 2 min

Astigmatism Test

Explore how a radial line pattern appears on your screen. This browser demo cannot diagnose astigmatism.

Est. Time: 1 min

Peripheral Vision Test

Notice brief screen-edge targets while keeping central focus in a non-clinical visual awareness exercise.

Est. Time: 1 min

Face Blindness Test (Prosopagnosia)

Try a visual face-feature recognition exercise; results are not a validated screening test for prosopagnosia.

Est. Time: 3 min

Color Hue Test

Identify the differently colored tile in a timed hue discrimination game. Results are screen-dependent and not clinical.

Est. Time: 2 min

Afterimage Test

Experience the Negative Afterimage Illusion. See how your retina adapts to constant stimulation.

Est. Time: 1 min

Sequence Memory Test (Corsi)

Practice visual sequence memory by repeating a pattern of illuminated tiles.

Est. Time: 3 min

Aim Trainer

FPS Training. Measure your hand-eye coordination, reflex speed, and mouse accuracy.

Est. Time: 30 sec

Common Questions

How do online color blindness tests work?

Online tests use pseudoisochromatic plates (like the Ishihara test) where dots of specific colors form numbers that are invisible to people with certain types of color vision deficiency (Protanopia/Deuteranopia).

What is visual memory?

Visual memory describes the relationship between perceptual processing and the encoding, storage, and retrieval of the resulting neural representations. It is tested using pattern recall tasks.

What is contrast sensitivity?

Contrast sensitivity measures your ability to distinguish between an object and its background. Unlike visual acuity (20/20 vision), it assesses the quality of vision in low-contrast situations.

Visual Perception in the Browser

Visual processing accounts for a massive portion of the human brain's computational power. Our visual tasks explore perception under ordinary display conditions. They cannot measure the medical quality of your vision.

Key areas of assessment include:

  • Color Patterns: Exploring recognition of colored shapes on your display; not diagnosing color-vision deficiencies.
  • Contrast Perception: Exploring differences between patterns and backgrounds without clinical calibration.
  • Visual Memory: The capacity of the visuo-spatial sketchpad component of working memory.

Related Keywords

#color blind test#visual memory test#contrast sensitivity#eye test online