The lens is a lens lens embedded in the frame that is worn in front of the eye to improve vision, protect the eye or make decorative use. There are also special glasses for viewing 3D stereoscopic images or virtual reality images.
Glasses can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia or strabismus. Other types of glasses include goggles, sunglasses, swimming goggles, etc., providing various protections for the eyes.
Modern glasses usually have a nose pad (nose bridge) in the middle of the lens and a cushion on the left and right arms resting on the ear.
Those who love beauty or are not used to wearing glasses can choose to correct their vision with contact lenses. Although contact lenses and laser surgery are becoming more common, glasses are still the most common tool for correcting vision.