Evolution of human colour vision lights, which appear to be clear. Other colour perception issues include having trouble distinguishing yellows from reds and violet, lavender and purple from blue. In other cases, objects that reflect both red and blue light may appear to just be blue to these individuals. Deuteranopes, who are missing medium wavelength sensitive cones, are similar to protanopes in that they cannot distinguish between colours in the green-yellow-red part of the electromagnetic spectrum. However, deuteranopes do not suffer from dimming issues. For example, purple colors are not seen as being opposite to other colours in the spectrum but instead appear to be
Eye to Eye (Taher Shah song) where he sings about "sensational eyes, emotional eyes, colourful eyes, exciting eyes, fabulous eyes, spectrum eyes, human eyes, my eyes, your eyes...". The music video, which gained notoriety for its absurd and nonsensical English lyrics, shows Taher Shah swaying side to side to the song while singing and blinking coyly at the screen. A duplicate of Shah, dressed in black with sleek hair, is also seen in the video singing and swaying alongside the white-clad Shah. At one point in the video, the two give a short message: "Eye to eye, makes a peculiar love, lifetime, once in a life.