Which cone type is most sensitive to blue light?

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Study for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Dive into flashcards and multiple-choice questions, with detailed hints and explanations. Prepare confidently for your exam today!

Multiple Choice

Which cone type is most sensitive to blue light?

Explanation:
Blue light is detected most efficiently by the short-wavelength–sensitive cones, the cyanolabe. Their photopigment peaks in the blue part of the spectrum, around 420–450 nm, so they respond strongest to blue light. The other cone types peak at longer wavelengths (green for chlorolabe and red for erythrolabe) and are not as responsive to blue. Rhodolabe isn’t the blue-sensitive cone in standard human vision, so cyanolabe is the best match for blue sensitivity.

Blue light is detected most efficiently by the short-wavelength–sensitive cones, the cyanolabe. Their photopigment peaks in the blue part of the spectrum, around 420–450 nm, so they respond strongest to blue light. The other cone types peak at longer wavelengths (green for chlorolabe and red for erythrolabe) and are not as responsive to blue. Rhodolabe isn’t the blue-sensitive cone in standard human vision, so cyanolabe is the best match for blue sensitivity.

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