Step 1: Definition of Amplitude of Accommodation.
The amplitude of accommodation refers to the maximum amount of refractive power that the eye can achieve to bring a near object into clear focus. It is measured as the difference between the nearest point of clear vision (near point) and the farthest point of clear vision (far point). The amplitude of accommodation is typically measured in diopters (D).
Step 2: Conclusion.
The amplitude of accommodation decreases with age, and it is an important factor in determining the eye's ability to focus on near objects.