The cones are light-sensing cells in the eye that, with the rods, enable us to see. The cones in the eye determine our vision at higher luminous intensities, i.e. during the day or with artificial lighting. The system of cones has low sensitivity to light and is mainly concentrated in the central area around the fovea. It enables colour vision and very good visual acuity.
Cones are photoreceptors, meaning specialised light-sensing cells of the retina in the eye. The cones enable vision in sufficient light, i.e. mainly during the day and in artificial lighting. They are vital for the perception of colours.
The retina of the eye has around six million cones, i.e. less than rods. But it is only through these cone-like receptors that the eye is capable of visual acuity. The concentration of cones is highest in the fovea (fovea centralis), the retinal area with the sharpest vision.