red-green color blindness
Findings
No curated finding names red-green color blindness yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Deuteranopia is a type of color vision deficiency where the green photoreceptors are absent. It affects hue discrimination in the same way as protanopia, but without the dimming effect. Like protanopia, it is hereditary, sex-linked, and found in about 1% of the male population.
Definition from the Mondo Disease Ontology (MONDO:0010564), read 2026-09-29. CC BY 4.0.
- Inheritance
- X-linked recessive inheritance
- Onset and course
- Congenital onset
HPO, annotations 2026-09-02
Features
1 feature
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- DeuteranomalyHPOHP:0011520
Genes
1 gene
Germline variants in the gene encoding each protein, as classified by GenCC submitters, each in their own words. Limited, disputed and refuted submissions are listed too.
- OPN1MWHGNC:4206
- Definitive · ClinGen · X-linked · 2025
- Strong · Labcorp Genetics (formerly Invitae) · X-linked · 2021
Where it sits
Other names
4 names
Resolves to: red-green color blindness
- Also called
- colorblindness, deutanDeutan defectdeuteranopiapartial achromatopsia, deutan type