Macula lutea
An oval area in the retina, 3 to 5 mm in diameter, usually located temporal to the posterior pole of the eye and slightly below the level of the optic disk. It is characterised by the presence of a yellow pigment diffusely permeating the inner layers, contains the fovea centralis in its centre, and provides the best phototopic visual acuity. It is devoid of retinal blood vessels, except in its periphery, and receives nourishment from the choriocapillaris of the choroid.
Dictionary > Macula lutea
You will also like...
![Chemical effects on plant growth and development](https://www.biologyonline.com/wp-content/uploads/2020/02/Effect-of-Chemicals-on-Growth-Development-in-Organisms-300x168.jpg)
Effect of Chemicals on Growth & Development in Organisms
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
![Regulation of Biological Systems](https://www.biologyonline.com/wp-content/uploads/2020/02/Regulation-of-Biological-Systems-300x168.jpg)
Regulation of Biological Systems
Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..
![Lentic community](https://www.biologyonline.com/wp-content/uploads/2020/02/Freshwater-Communities-Lentic-Waters-253x168.jpg)
Freshwater Communities & Lentic Waters
Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..
![Mātauranga Māori and Science Collaboration](https://www.biologyonline.com/wp-content/uploads/2020/09/Matauranga-Maori-and-Science-Collaboration-300x168.jpg)
Mātauranga Māori and Science
Mātauranga Māori is the living knowledge system of the indigenous people of New Zealand, including the relationships t..
![Photosynthesis and respiration](https://www.biologyonline.com/wp-content/uploads/2020/02/Plant-Metabolism-284x168.jpg)
Plant Metabolism
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..
![Growth and Plant Hormones](https://www.biologyonline.com/wp-content/uploads/2020/02/Growth-and-Plant-Hormones-300x158.jpg)
Growth and Plant Hormones
Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..