Yellow spot facts for kids
The yellow spot or macula is an oval yellow spot near the centre of the retina of the human eye. It has a size of 1.5 millimeters.
It is specialized for seeing things with highest clearness or visual acuity.
It is the area of best vision where maximum amount of cone cells are present.It is also known as fovea centralis and Macula Lutea. Most of the sensory cells are present at this spot. It is another name for the macula. It is subdivided into the umbo, foveola, foveal avascular zone, fovea, parafovea and perifovea areas. It has a diameter of 5.5mm in humans. They contain the pigment Iodopsin and respond to bright light and colour, because of which we can see stuff clearly around us. It lies at the back of the eye almost center of the horizontal axis of the eye ball.
It is responsible for the central, high-resolution, colour vision that is possible in good light; and this kind of vision is impaired if it is damaged. It is about 6mm in diameter. The yellow spot is the most sensitive spot on the retina, the sharpest image of the object forms only here.
Images for kids
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A fundus photograph showing the macula as a spot to the left. The optic disc is the area on the right where blood vessels converge. The grey, more diffuse spot in the centre is a shadow artifact.
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Time-Domain OCT of the macular area of a retina at 800 nm, axial resolution 3 µm
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Spectral-Domain OCT macula cross-section scan.
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macula histology (OCT)
See also
In Spanish: Mácula lútea para niños
