A nurse is reinforcing teaching with a newly licensed nurse about age-related changes to vision in older adult clients. Which of the following should the nurse include as an example of an expected age-related change?

A. With aging, the tone of the eye muscles decreases, which contributes to difficulty focusing on near objects (presbyopia). B. The lens actually thickens with age, which decreases its flexibility and ability to accommodate for near vision. C. Older adults often experience reduced depth perception due to changes in the lens, retina, and overall visual processing, which can increase the risk of falls and difficulty judging distances. D. The lens becomes less flexible with age, limiting the ability to focus on close objects (presbyopia) and contributing to visual impairment.