The amplitude of accommodation for a 60-year-old patient is approximately how much?

The amplitude of accommodation typically decreases with age, a phenomenon known as presbyopia. At the age of 60, the average amplitude of accommodation for an individual is roughly around 0.50 diopters. This reduction occurs because the lens loses its flexibility over time, making it more challenging for the eye to adjust focus on near objects.

In the context of the other options, while the values provided are typical for various age groups, the choice of 0.50D aligns closely with what is expected for someone in their sixties given the general trend of decreasing accommodation with advancing age. At this stage, the ability to accommodate is significantly diminished compared to younger individuals, who might exhibit higher amplitudes. Understanding this change is crucial for eye care professionals as it informs them about the adjustments needed in prescribing corrective lenses or other accommodations for aging patients.