Color Vision Screening (Ishihara Test)
Assess for red-green color blindness.
INSTRUCTIONS
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Ensure proper room lighting and phone brightness.
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Wear any glasses necessary for near vision.
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Hold screen at a comfortable reading distance (~30 inches or 75 cm).
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Test each eye independently.
When to Use
Pearls/Pitfalls
Why Use

12
Other number
Plate cannot be read

8
3
Other number
Plate cannot be read

5
2
Other number
Plate cannot be read

29
70
Other number
Plate cannot be read

74
21
Other number
Plate cannot be read

7
Other number
Plate cannot be read

45
Other number
Plate cannot be read

2
Other number
Plate cannot be read

16
Other number
Plate cannot be read

3
5
35
Other number
Plate cannot be read

6
9
96
Other number
Plate cannot be read
Result:
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