Protanopia and Red-green dichromacy

Protanopia noun - Dichromacy characterized by lowered sensitivity to long wavelengths of light resulting in an inability to distinguish red and purplish blue.

Red-green dichromacy and protanopia are semantically related. In some cases you can use "Red-green dichromacy" instead a noun "Protanopia".

Red-green dichromacy noun - Confusion of red and green.

Protanopia and red-green dichromacy are semantically related. Sometimes you can replace term "Protanopia" with "Red-green dichromacy", this terms are similar.