The power of accommodation of the eye refers to the ability of the eye lens to adjust its focal length to focus on near and far objects clearly on the retina. This process is carried out by the ciliary muscles, which help in changing the shape of the lens by compressing and elongating it. The power of accommodation is limited, which means that the focal length of the eye lens cannot be reduced beyond a certain minimum limit. The power of accommodation varies for near and distant objects and also for objects moving away or towards the eye. By adjusting the focal length, the eye is actually changing its lens power as well. The power of accommodation for a person with normal eyesight is around 4 diopters, which is the unit of lens power. When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and distant objects are clearly visible to the eyes. The power of accommodation is an important process that allows us to see objects clearly at different distances.