Why Glasses?@#!^*)@*<~?/.,;'!!!

The history of glasses first started with Nero, a Roman emperor, who was in the years 54 to 68 AD. Nero has always used sunken gemstones to read to watch shows, although it is not certain whether Nero had any problems with his eyesight. Glasses are a very useful sight aid if you have a vision deficiency. The invention of glasses has a long history, until finally this tool developed rapidly and became part of the world's fashion trends. Especially in old age when the ability to see them is not as good as when they were young, glasses are very influential in their lives. Whether it's for reading, watching television, and others. This magnifying lens for reading is shaped like two small magnifying glasses and is attached to a bone, metal, or balanced skin support at the bridge of the nose. The first known artistic representation of wearing glasses is the painting of Tommaso da Modena in 1352. Glasses can be manufactured with a single lens that corrects far or near vision or it can be manufactured with a multifocal lens that corrects both distance and readability. Concave glass is used to correct nearsightedness, so that the light beam can distort. Convex lenses are used to aid in the correction of farsightedness, so that the light rays blend. The cylindrical lens used to correct astigmatism was invented by Sir George Airy in 1825. Meanwhile, the bifocal lens can be used to treat nearsightedness and presbyopia with the bottom to see close objects such as reading was first made by Benjamin Franklin in 1784. The skin area around the eyes is very thin and sensitive. Call it the eyelid which is the thinnest layer of skin on the human body. This means that the risk of experiencing damage from exposure to ultraviolet rays is also large. Wearing sunglasses can reduce that possibility. Furthermore, ultraviolet rays can also cause skin cancer, especially on the eyelids.