Archive puzzle
Doctordle #160
Difficulty distinguishing red and green
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Case notes
Sourced case summary
Open the full case notes after playing. The text is also rendered in the page HTML so search engines can understand the archived puzzle.
Case summary
This archived Doctordle case was published on 2026-09-07. It presents "Difficulty distinguishing red and green" as a Easy Ophthalmology puzzle. The final answer is Color Blindness.
Answer
Color Blindness
Source
Topic pages verified on 2026-07-11
Information summarized from MedlinePlus.gov. MedlinePlus does not endorse Doctordle.
Six clues
Clue 1
A child consistently confuses certain red and green shades.
Clue 2
Visual sharpness is otherwise normal in this fictional case.
Clue 3
A pattern of colored dots is used during testing.
Clue 4
The condition is often inherited and more common in males.
Clue 5
It usually means reduced color discrimination rather than seeing only gray.
Clue 6
The answer is also called color vision deficiency.
Plain-language explanation
Color blindness, or color vision deficiency, makes it difficult to distinguish certain colors. Red-green difficulty is the most common inherited pattern.
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