How Have Glasses Changed Over The Years

Have you ever wondered when corrective glasses were invented? Glasses were invented around the 1400s and there was an elevated necessity for them around the Industrial Revolution, (Klein). People started realizing something was wrong with their eyesight when books started to be printed by the Gutenberg Printing Press. The printing of books led to the important requirement of glasses, which helps to correct awful vision (Visio-Rx). Glasses have changed over the years and they help us see the world clearly. I believe knowing how the eye works, the different types of corrective lenses, and discovering the types of distorted vision, helps us to be able to obtain better vision.
First, during the 1400s glasses were created (Klein). Around 1500 Johannes …show more content…
The cornea, or lens, is a transparent covering of material at the front of the eye, which creates an image of an object by mixing light in a process known as refraction (Klein). During refraction the light rays pass through the cornea and pupil and hit the lens that creates an image on the retina. The retina then sends the image to the optic nerve that makes you able to see. The eye can work like this because it has its own lens that is able to focus on an image that is given to the retina. Since your pupils grow and shrink, depending on how much light is present, the image that is given to the retina may be larger, smaller, or the same size as the object (Roberts).
Third, the eye works in many ways and helps us see the world clearly. The eye can see due to the refraction process. Glasses are used when a person's vision is not operating correctly. Glasses are a pair of lenses, held in place by a frame, which sits on the nose. Countless people today wear glasses, but others wear contact lenses that work similar to glasses. Unlike glasses, contact lenses are a flimsy piece of plastic that is placed on the surface of the eye and helps your blurred vision better