What does UVB radiation primarily affect?

UVB radiation primarily affects the skin and also has an impact on the eyes. When considering its effects on the skin, UVB is known for its role in causing sunburn and contributing to skin cancer. It stimulates the production of melanin, which can lead to tanning, but it also has the potential to cause direct DNA damage in skin cells.

Additionally, UVB radiation can adversely affect the eyes by increasing the risk of cataracts and other ocular conditions due to its high energy levels. The cumulative exposure to UVB rays over time, especially during outdoor activities without adequate protection, can lead to significant health impacts. Therefore, the correct understanding is that UVB radiation has notable implications for both skin and eye health, making the comprehensive option that includes both the skin and the eyes the most accurate.