What does visual accommodation refer to?

Visual accommodation refers to the ability of the eye to adjust focus on objects at varying distances. This process is crucial for maintaining clear vision when looking at objects that are near versus far. When viewing something close up, the eye's lens becomes thicker to increase its optical power, allowing for a sharper focus on nearby objects. Conversely, when looking at distant objects, the lens flattens. This adjustment is vital for tasks like reading or engaging in activities requiring different visual distances, ensuring that individuals can see clearly regardless of the position of the object they are looking at.

Understanding this concept is fundamental for professionals working in rehabilitation technology or assistive devices, as any deficits in visual accommodation can significantly impact a person's daily life and the strategies employed to enhance visual function.