Looking at a solar eclipse with sunglasses is not safe and can result in blindness or disrupted vision. Sunglasses do not provide enough protection for the eyes during a solar eclipse, as they do not block enough visible, infrared, and ultraviolet light. The lenses of solar eclipse glasses are made of black polymer or resin infused with carbon particles, which block nearly all visible, infrared, and ultraviolet light. Solar eclipse glasses and solar viewers are 100,000 times darker than sunglasses and are held to an international safety standard. Therefore, it is important to use proper eye protection, such as eclipse glasses or a special solar filter, to view a solar eclipse safely.