Foveola
Foveola
Foveola (/foʊˈviːələ/; from Latin, meaning "small pit") is the tiny pit located in the center of the macula, a small, sensitive area of the retina. The foveola is responsible for sharp, central vision (also called foveal vision), which is necessary in humans for activities where visual detail is of primary importance, such as reading and driving.
Etymology
The term "foveola" is derived from the Latin word "fovea," which means "pit." The suffix "-ola" is a diminutive, thus "foveola" translates to "small pit."
Anatomy
The foveola is approximately 0.35 mm in diameter and is the centermost part of the macula. It contains a high concentration of cone cells, which are responsible for color vision and function best in relatively bright light. The foveola has the highest visual acuity in the retina and is responsible for our sharp central vision.
Related Terms
- Macula: An oval-shaped pigmented area near the center of the retina in the human eye, surrounding the foveola.
- Retina: A thin layer of tissue that lines the back of the eye on the inside, responsible for receiving light that the lens has focused, converting the light into neural signals, and sending these signals on to the brain for visual recognition.
- Cone cells: One of the two types of photoreceptor cells in the retina of the eye, responsible for color vision.
See Also
External links
- Medical encyclopedia article on Foveola
- Wikipedia's article - Foveola
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