Professional online screening
Interactive eye screening checks
These checks are designed for online use: color discrimination, central vision distortion, contrast sensitivity, and symptom triage. They improve screening quality without pretending to replace a calibrated clinic exam.
Seek urgent eye care now for sudden vision loss, severe eye pain, new flashes or floaters, trauma, or a curtain-like shadow.
Before you start
- Use a bright screen in a well-lit room.
- Wear your usual glasses or contact lenses.
- Test one eye at a time when the instruction says so.
- Do not use results to delay medical care.
Ishihara color plate screening
Read the number you see on each Ishihara plate. Plates without a visible number have been removed. Plate 1 is a control plate; the remaining scored plates estimate color discrimination, and the final plates help suggest the pattern of red-green color deficiency.
Type the number you see, or choose Nothing if you cannot see a number.
Plate 1 / 20
control / pattern
Ishihara score: 0/16
Complete the Ishihara plates to show your score.