People with a certain eye disorder are virtually unable to see in moderately bright light, which seems to them unbearably intense, since the cells of their retinas are overwhelmed by moderately bright light  These people do, however, show normal sensitivity to most components of dim light
Their retinal cells are also not excessively sensitive to red components of moderately bright light
These people perceive colors other than red in the same way as do most people who do not have the disorder.