UVA exposure has been linked to all of the following effects except:

UVA exposure is known for its role in various detrimental effects on the skin and eye health. It penetrates deep into the skin and contributes to photoaging, leading to excessive skin wrinkling as well as increasing the risk of cataracts by damaging the eye lens. Additionally, UVA rays enhance the effects of sunlight by causing skin damage even on cloudy days or through windows, where UVB rays (which primarily cause sunburn) may not penetrate as effectively.

The aspect of lessened sunburning is not associated with UVA exposure. In fact, UVB rays are primarily responsible for sunburns, and although UVA exposure can contribute to skin damage and increase the risk of skin cancers, it does not have the effect of reducing the likelihood of sunburns. Therefore, this option stands out as the correct answer because it represents a misconception about the relationship between UVA and sunburn.