I, like many people, struggle with being nearsighted. It is very frustrating to be unable to see things without the help of corrective lenses. I have always wondered the science behind why my eyes don’t work properly, and exactly how corrective lenses fix this problem. To focus on distant objects, the eye flattens and has a shorter focal length. When a person is nearsighted, they lack the ability to do this, and a blurry image is formed in front of the retina. It is fixed by using a diverging lens, which will diverge light before it reaches the eye; this results in a clear image being formed on the retina. Life as we know would not be possible without this real-life application of Physics.
(Kaitlyn, Source)
