Amplitude of accommodation (AA) is a measurement of the eye’s ability to focus clearly on objects at near distances (i.e. accommodation). This eye focusing range for a child is usually about 2-3 inches. For a young adult, it is 4-6 inches. The focus range for a 45-year-old adult is about 20 inches. For an 80-year-old adult, it is 60 inches. [1]. To meet Wikipedias quality standards, this article or section may require cleanup. ... The Accommodation Reflex is a reflex action of the eye, in response to focusing on a near object, then looking at distant object (and vice versa). ...

See also

• Convergence insufficiency
• Eye examination
• Negative relative accommodation
• Positive relative accommodation
• Presbyopia