Protanopia: Life Without the L-Cone
Placeholder: red hues fade toward dull olive and brown tones.
- L-cone: Cone affected (placeholder note)
- ~1.3%: Prevalence (placeholder note)
- X-linked: Inheritance (placeholder note)
- Full loss: Severity (placeholder note)
How red disappears
Placeholder sentence about red cone signal loss.
Placeholder highlight about protanopia driving impact.
Deuteranopia: The Most Common Deficiency
Placeholder: green hues shift and blend with reds.
- M-cone: Cone affected (placeholder note)
- ~1.2%: Prevalence (placeholder note)
- X-linked: Inheritance (placeholder note)
- Full loss: Severity (placeholder note)
How green disappears
Placeholder sentence about green cone signal loss.
Placeholder highlight about deuteranopia frequency.
Tritanopia: A Rare Blue-Yellow Deficiency
Placeholder: blue hues collapse toward green and pink.
- S-cone: Cone affected (placeholder note)
- ~0.01%: Prevalence (placeholder note)
- Autosomal: Inheritance (placeholder note)
- Full loss: Severity (placeholder note)
How blue disappears
Placeholder sentence about blue cone signal loss.
Placeholder highlight about tritanopia rarity.
Comparing All Three Deficiencies Side by Side
Placeholder: each deficiency distorts a different color axis.
- 3: Types compared (placeholder note)
- Dichromacy: Shared trait (placeholder note)
- Ishihara: Test method (placeholder note)
- None: Correction (placeholder note)
Reading the comparison grid
Placeholder sentence about comparing swatches across types.
Placeholder highlight about overlapping confusion colors.
Relative Prevalence Across the Population
Placeholder: deuteranopia and protanopia dominate; tritanopia is rare.
- 1.3%: Protanopia (placeholder note)
- 1.2%: Deuteranopia (placeholder note)
- 0.01%: Tritanopia (placeholder note)
- ~8%: Total color blind men (placeholder note)
Why prevalence differs
Placeholder sentence about X-linked versus autosomal inheritance.
Placeholder highlight about population-level impact.