Glasses, also known as eyeglasses or spectacles, are important in our daily lives because they help individuals who have difficulty seeing clearly due to refractive errors, such as nearsightedness, farsightedness, and astigmatism. Glasses work by bending light as it enters the eye in order to focus it correctly on the retina. This allows people with vision impairments to see more clearly and improve their quality of life. Additionally, glasses can also be used as a form of protective eye wear, for example, safety glasses in work place or sunglasses to protect from UV rays.