The filters worked for people with anomalous trichromacy, the most common type of red-green color vision deficiency (CVD) — even after the glasses were removed Georgia Slater is a staff editor on the ...

Primates have a unique ability to distinguish red from green, but the reason why has been debated: Was it first to see ripe red fruit against green leaves or was it first the mating systems that ...

Most mammals rely on scent rather than sight. Look at a dog’s eyes, for example: They’re usually on the sides of its face, not close together and forward-facing like ours. Having eyes on the side is ...

Intraspecific color vision variation is prevalent among nearly all diurnal monkeys in the neotropics and is seemingly a textbook case of balancing selection acting to maintain genetic polymorphism.

A new study found that special patented glasses engineered with technically advanced spectral notch filters enhance color vision for those with the most common types of red-green color vision ...

A new UC Davis Eye Center study, conducted in collaboration with France's INSERM Stem Cell and Brain Research Institute, found that special patented glasses engineered with technically advanced ...

Analyses of primate visual pigments show that our color vision evolved in an unusual way and that the brain is more adaptable than generally thought To our eyes, the world is arrayed in a seemingly ...

The adaptive significance of the unique ability in many primates to distinguish red hues from green ones (i.e., trichromatic color vision) has always enticed debate among evolutionary biologists. The ...