As the summer heats up many of us are eager to enjoy the warmth of the sun and the activities that go along with it. While continued awareness of the importance of UV protective clothing and sunscreen exists, there is a lack of emphasis on the impacts the sun and UV exposure has on the eyes. UV damage to the eyes is known as the “invisible threat” and its impacts are measured and classified by the strength of the UV ray in nanometers (nm).
UVC: These rays are below 280 nm. The upper atmosphere absorbs these, so they do not reach us, therefore protection from these rays is not overly necessary.
UVB: These are between 315 – 380 nm. These manage to make it to the earth’s surface and are notorious for damaging sight. They can cause snow blindness but are notably responsible for sunburn and several types of skin cancer. Research has shown that these rays are strongest during the summer and at higher altitudes.