What is the effect of UV exposure on aging skin?

The correct answer highlights that UV exposure is responsible for approximately 80% of the visible signs of aging skin. This includes issues such as wrinkles, fine lines, age spots, and skin texture changes. UV radiation can damage the DNA in skin cells, leading to alterations that accelerate the aging process. It causes photoaging, which results from cumulative damage over time, particularly from the sun's UVA and UVB rays. This can lead to a breakdown of collagen and elastin in the skin, essential proteins that provide structure and elasticity, ultimately resulting in a decrease in skin firmness and an increase in the appearance of aging.

In contrast, preventing wrinkles would imply that UV exposure has a protective effect, which is not accurate, as the opposite is true. Stating there is no effect fails to acknowledge this significant connection, and limiting the effects solely to the eyelids disregards the widespread impact of UV exposure on the entire body.