Definitions for fovea centralis
sɛnˈtreɪ lɪsfovea cen·tralis

Princeton's WordNetRate this definition:0.0 / 0 votes

1. fovea, fovea centralisnoun

   area consisting of a small depression in the retina containing cones and where vision is most acute

WikipediaRate this definition:0.0 / 0 votes

1. Fovea centralis

   The fovea centralis is a small, central pit composed of closely packed cones in the eye. It is located in the center of the macula lutea of the retina.The fovea is responsible for sharp central vision (also called foveal vision), which is necessary in humans for activities for which visual detail is of primary importance, such as reading and driving. The fovea is surrounded by the parafovea belt and the perifovea outer region.The parafovea is the intermediate belt, where the ganglion cell layer is composed of more than five layers of cells, as well as the highest density of cones; the perifovea is the outermost region where the ganglion cell layer contains two to four layers of cells, and is where visual acuity is below the optimum. The perifovea contains an even more diminished density of cones, having 12 per 100 micrometres versus 50 per 100 micrometres in the most central fovea. That, in turn, is surrounded by a larger peripheral area, which delivers highly compressed information of low resolution following the pattern of compression in foveated imaging.Approximately half the nerve fibers in the optic nerve carry information from the fovea, while the remaining half carry information from the rest of the retina. The parafovea extends to a radius of 1.25 mm from the central fovea, and the perifovea is found at a 2.75 mm radius from the fovea centralis.The term fovea comes from the from Latin fovea 'pit'.

ChatGPTRate this definition:0.0 / 0 votes

1. fovea centralis

   The fovea centralis, commonly referred to simply as the fovea, is a small depression or pit located in the center of the macula, an area on the retina of the eye. It is responsible for sharp central vision (also called foveal vision), which is necessary for activities where visual detail is of primary importance, such as reading and driving. Its primary function is to maximize visual acuity by maintaining a one-to-one relationship between photoreceptor cells and ganglion cells that send signals to the brain. It contains the highest concentration of cone cells in the retina and lacks rod cells, making it the area of the retina where vision is most precise and color sensitivity is highest.

WikidataRate this definition:0.0 / 0 votes

1. Fovea centralis

   The fovea centralis, also generally known as the fovea, is a part of the eye, located in the center of the macula region of the retina. The fovea is responsible for sharp central vision, which is necessary in humans for reading, driving, and any activity where visual detail is of primary importance. The fovea is surrounded by the parafovea belt, and the perifovea outer region. The parafovea is the intermediate belt, where the ganglion cell layer is composed of more than five rows of cells, as well as the highest density of cones; the perifovea is the outermost region where the ganglion cell layer contains two to four rows of cells, and is where visual acuity is below the optimum. The perifovea contains an even more diminished density of cones, having 12 per 100 micrometres versus 50 per 100 micrometres in the most central fovea. This, in turn, is surrounded by a larger peripheral area that delivers highly compressed information of low resolution. Approximately 50% of the nerve fibers in the optic nerve carry information from the fovea, while the other 50% carry information from the rest of the retina. The parafovea extends to a distance of 1¼ mm from the central fovea, and the perifovea is found 2¾ mm away from the fovea centralis.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Fovea Centralis

   An area approximately 1.5 millimeters in diameter within the macula lutea where the retina thins out greatly because of the oblique shifting of all layers except the pigment epithelium layer. It includes the sloping walls of the fovea (clivus) and contains a few rods in its periphery. In its center (foveola) are the cones most adapted to yield high visual acuity, each cone being connected to only one ganglion cell. (Cline et al., Dictionary of Visual Science, 4th ed)

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Numerology

1. Chaldean Numerology

   The numerical value of fovea centralis in Chaldean Numerology is: 9

2. Pythagorean Numerology

   The numerical value of fovea centralis in Pythagorean Numerology is: 6

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=fovea centralis
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Fovea_Centralis
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=fovea centralis