Accommodation (eye)
（重定向自Accommodation of the eye）
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![Duane's classical curves showing the amplitude or width of accommodation as changing with age. Mean (B) and approximate lower (A) and upper (C) standard deviations are shown[2])](/Images/godic/202412/19/Duane_(1922)_Fig_4_modified.svg0620.png")
![La luz procedente de un objeto lejano y otro cercano incide en el mismo punto de la retina gracias al cambio en la curvatura del cristalino.](/Images/godic/202412/19/Focus_in_an_eye.svg0621.png")
![Akkommodationsbreite und minimale Sehweite in Abhängigkeit vom Alter(Duane Kurve.[8][9])](/Images/godic/202412/19/Akkomodbreiterp0621.png")
Accommodation (Acc) is the process by which the vertebrate eye changes optical power to maintain a clear image or focus on an object as its distance varies. Distances vary for individuals from the far point—the maximum distance from the eye for which a clear image of an object can be seen, to the near point—the minimum distance from the eye for which a clear image of an object can be seen.