Effect persists even when glasses are not worn
July 13, 2020

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 spectral notch filters enhance color vision for those with the most common types of red-green color vision deficiency (“anomalous trichromacy”). Notably, the ability to identify and experience expanded color was also demonstrated when color blind test subjects were not wearing the glasses. 

The study evaluated the impact of spectral notch filters on enhancing the chromatic responses of observers with red-green CVD over two weeks of usage. The filters (EnChroma glasses) are designed to increase the separation between color channels to help people with color blindness see colors more vibrantly, clearly and distinctly.