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Lens (Anatomy)
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Details
The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina. The lens, by changing shape, functions to change the focal distance of the eye so that it can focus on objects at various distances, thus allowing a sharp real image of the object of interest to be formed on the retina. This adjustment of the lens is known as accommodation (see also Accommodation, below). It is similar to the focusing of a photographic camera via movement of its lenses. The lens is flatter on its anterior side. The lens is also known as the aquula (Latin, a little stream, dim. of aqua, water) or crystalline lens. In humans, the refractive power of the lens in its natural environment is approximately 18 dioptres, roughly one-third of the eye's total power.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130275204
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Sprache Englisch
- Größe H220mm x B150mm x T8mm
- Jahr 2010
- EAN 9786130275204
- Format Fachbuch
- ISBN 978-613-0-27520-4
- Titel Lens (Anatomy)
- Untertitel Lens (optics), Eye, Cornea, Light, Focus (optics), Retina, Focal length, Real image, Accommodation (eye), Photographic lens, Dioptre, Refraction, Intraocular lens, Iris (anatomy), Melatonin
- Gewicht 207g
- Herausgeber Alphascript Publishing
- Anzahl Seiten 128
- Genre Biologie
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