UV filters are special coatings applied to camera lenses and other optical devices to block ultraviolet (UV) light. They help protect the lens from scratches and dust while also preventing UV rays from affecting the image quality. By reducing UV light, these filters can enhance color accuracy and contrast in photographs, especially in bright outdoor settings. In addition to photography, UV filters are commonly used in sunglasses and other eyewear to protect the eyes from harmful UV radiation. Prolonged exposure to UV rays can lead to eye damage, making these filters an important feature for maintaining eye health while enjoying outdoor activities.