Test Preparation
Ishihara Color Blind Test
Estimated 3 minutesEnvironment Setup
Lighting Check
Ensure you are in a well-lit room with natural light
Screen Settings
Adjust brightness to comfortable level, no color filters
Viewing Distance
Sit approximately 60-70cm (arm's length) from screen
Time Availability
Make sure you have 3-5 minutes without interruption
Screen Calibration
Look at the test plate below. You should be able to see a clear number.
What number do you see?
Number 12
If you cannot see the number clearly, adjust your screen brightness
Important Notice
This test is for screening purposes only and cannot replace professional medical diagnosis. Screen display may affect result accuracy.
This test is for screening purposes only and cannot replace professional medical diagnosis. Screen display may affect result accuracy.
How to Take the Test
Test Steps
- • Look at each test plate carefully
- • Enter the number(s) you can see
- • If you can't see anything, click 'Skip'
- • Complete all 8 test plates
Important Tips
- • Take your time, there's no rush
- • Don't guess if you're not sure
- • View each plate for 3-5 seconds
- • Trust your first impression
Please complete environment check and calibration first