Accommodation

Definition

Accommodation is the process by which the eye adjusts its focal length to clearly focus on objects at various distances, primarily achieved by changing the shape of the lens. This adjustment allows for sharp images to be formed on the retina whether the object is near or far.

Related terms

Refraction: The bending of light as it passes through one medium to another, crucial for focusing light rays onto the retina.

Ciliary muscles: Muscles that adjust the shape of the eye's lens during accommodation, allowing it to focus on objects at different distances.

Pupil constriction: The narrowing of the pupil size which improves depth of field and sharpness in vision, often occurring simultaneously with accommodation