accommodation

The eye’s ability to adjust its refractive power by changing the shape of the crystalline lens, allowing objects at various distances to be focused on the retina. This process is mediated by the ciliary muscle and zonular fibers, which control lens curvature. Accommodation is a dynamic response to blurred retinal images, with the goal of maximizing image sharpness. The accommodative range decreases with age due to lens stiffening, resulting in presbyopia.