The retina, in turn, houses two types of photoreceptors ​ — cones (approximately 6 million), which give us color vision and high resolution, and rods (120 - 140 million), which are more than a thousand times as sensitive as the cones and help us to see in dim light.
Dalam retina ada dua jenis fotoreseptor ​ — sel kerucut (kira - kira 6 juta), yang membuat kita dapat melihat warna dan resolusi tinggi, serta sel batang (120 - 140 juta), yang seribu kali lebih peka daripada sel kerucut dan membantu kita melihat dalam cahaya redup.