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- There are two types of photoreceptors in the retina: rods and cones, named for their general appearance as illustrated in (Figure). Rods are strongly photosensitive and are located in the outer edges of the retina. They detect dim light and are used primarily for peripheral and nighttime vision.
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Jul 27, 2023 · Therefore, a large portion of the photoreceptor (outer and inner segments) is found in the photoreceptor layer, while the nucleus is located in the outer nuclear layer. The synaptic body is the innermost part of the photoreceptor.
Dec 19, 2022 · The visual system consists of 2 primary parallel pathways: optic and pupillary reflex pathways. [2] [3] Optic Pathway. The optic pathway begins in the retina, a complex structure of 10 layers, each serving a distinct function.
- Mohit Gupta, Bruno Bordoni
- 2022/12/19
- 2020
Aug 12, 2023 · This article explores the physiology of night vision, including the role of rod cells, retinal adaptation, and the visual processing mechanisms that contribute to improved vision in low-light environments.
Vision is the special sense of sight that is based on the transduction of light stimuli received through the eyes. The eyes are located within either orbit in the skull. The bony orbits surround the eyeballs, protecting them and anchoring the soft tissues of the eye (Figure 1).
Aug 23, 2023 · Optic tract. Tractus opticus. 1/3. Synonyms: Optic lemniscus. The optic tract is a large bundle of nerve fibers of the visual pathway. It is a paired structure located in both left and right sides of the brain.
- Medical Content
- 11 min
The optic tract is a bundle of nerve fibers that serves to carry visual information from the optic chiasm to the left and right lateral geniculate bodies as a part of the visual pathway. The visual pathway refers to the series of cells and synapses that transmit visual signals from the environment to the brain for processing. This pathway begins with light striking the specialized nerve cells ...
Dec 15, 2021 · However, when looking at a star in the night sky or other object in dim light, the object can be better viewed by the peripheral vision because it is the rods at the edges of the retina, rather than the cones at the center, that operate better in low light.
