Accommodation is the process of changing the shape of the lens to focus on near or distant objects.
To focus on a near object – the lens becomes thicker, this allows the light rays to refract (bend) more strongly.
To focus on a distant object – the lens is pulled thin, this allows the light rays to refract slightly.
|Position of object||Ciliary muscles||Suspensory ligaments||Muscle tension on lens||Lens shape||Refraction of light rays|
|Near||Contract||Slacken/loosen||Low||Fat/thicker||Light is refracted strongly|
|Distant||Relax||Stretched/tighten||High||Thin||Light is only refracted slightly|