出典:Wiktionary
出典:『Wiktionary』 (2025/11/09 23:11 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/26 19:53 UTC 版)
Cone cells, or cones, are photoreceptor cells in the retina of the eye that are responsible for color vision; they function best in relatively bright light, as opposed to rod cells that work better in dim light. Cone cells are densely packed in the fovea, but gradually become sparser towards the periphery of the retina.