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29 paź 2024 · Human eye, specialized sense organ in humans that is capable of receiving visual images, which are relayed to the brain. The anatomy of the eye includes auxiliary structures, such as the bony eye socket and extraocular muscles, as well as the structures of the eye itself, such as the lens and the retina.
The sagittal vertical (height) of a human adult eye is approximately 23.7 mm (0.93 in), the transverse horizontal diameter (width) is 24.2 mm (0.95 in) and the axial anteroposterior size (depth) averages 22.0–24.8 mm (0.87–0.98 in) with no significant difference between sexes and age groups. [3]
This article describes the human visual system, which is representative of mammalian vision, and to a lesser extent the vertebrate visual system. System overview. This diagram linearly (unless otherwise mentioned) tracks the projections of all known structures that allow for vision to their relevant endpoints in the human brain.
It consists of around one million nerve fibres (axons), is approximately half a centimetre thick and exits the retina via the papilla. This point is also known as the “blind spot” as the retina has no sensory cells there.
The human visual system is capable of seeing light in a very narrow range of frequencies on the electromagnetic spectrum. On the short end, 400 nm wavelengths are observed as violet, while on the long end, 700 nm wavelengths are red.
29 sty 2015 · The total binocular field of view is 200 deg (w) x 135 deg (h). The region of binocular overlap is 120 deg (w) x 135 deg (h) (WebVision). The binocular foveal high-acuity part (central view) is about 6 degrees (5-15 degrees). Share. Improve this answer.
Describe the basic anatomy of the visual system; Discuss how rods and cones contribute to different aspects of vision; Describe how monocular and binocular cues are used in the perception of depth
