Fovea
Fovea
Fovea (pronunciation: /ˈfoʊviə/), from the Latin word meaning "pit", is a small depression in the retina of the eye where visual acuity is highest. The fovea is responsible for sharp central vision, which is necessary in humans for activities where visual detail is of primary importance, such as reading and driving.
Etymology
The term "fovea" comes from the Latin word "fovea", which means "pit". This term was chosen due to the pit-like appearance of the fovea in the retina.
Anatomy
The fovea is located in the center of the macula, a small area in the retina that contains special light-sensitive cells. The fovea has a high concentration of cone cells, which are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.
Function
The fovea is critical for tasks that require the ability to see detail, such as reading, driving, and recognizing faces. It is also essential for color perception. The fovea has a direct line of sight to the object of interest, allowing it to capture the most light and provide the most detailed image.
Related Terms
- Macula: The area of the retina in which the fovea is located.
- Cone cells: The type of photoreceptor cells found in the fovea that are responsible for color vision.
- Rod cells: The type of photoreceptor cells that are not found in the fovea but are more sensitive to light and motion.
See Also
External links
- Medical encyclopedia article on Fovea
- Wikipedia's article - Fovea
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