The cyanolabe cone is responsible for seeing which color?

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Prepare for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The cyanolabe cone is responsible for seeing which color?

Explanation:
Short-wavelength (S) cones, often called cyanolabe cones, are specifically tuned to blue light. In color vision, we rely on three cone types: short-, medium-, and long-wavelength, which correspond roughly to blue, green, and red. The cyanolabe cone is the blue-detecting one, with peak sensitivity in the blue range around 420–450 nm, so its activity signals blue perception. Green is mainly detected by the medium-wavelength cone, red by the long-wavelength cone, and yellow arises from a combination of signals from red and green cones, not from the blue cone.

Short-wavelength (S) cones, often called cyanolabe cones, are specifically tuned to blue light. In color vision, we rely on three cone types: short-, medium-, and long-wavelength, which correspond roughly to blue, green, and red. The cyanolabe cone is the blue-detecting one, with peak sensitivity in the blue range around 420–450 nm, so its activity signals blue perception. Green is mainly detected by the medium-wavelength cone, red by the long-wavelength cone, and yellow arises from a combination of signals from red and green cones, not from the blue cone.

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