Why was eyeglasses invented?

Answer 1

Glasses are used to protect the eyes (such as radiation, anti-UV, anti-glare, etc.),

Correction of nearsightedness, farsightedness, astigmatism and improve visual function, see clearer, eyes will not be so tired,

Glasses can also be used to decorate the contours of the face, and so on

The role of a variety of different glasses, such as sunglasses, polarized sunglasses, driver mirror, swimming goggles, anti eyepiece, myopia, reading glasses and so on!

Answer 2

Rogie and Bacon In the middle of the 13th century, British scholar Bacon saw that many people had poor eyesight and couldn't read the words in books. He wanted to invent a tool to help people improve their eyesight. To this end, he thought of many ways and did many experiments, but none of them succeeded.

One day after the rain, Bacon went for a walk in the garden and saw a lot of raindrops on the spider web. He found that looking at the leaves through the raindrops, the veins of the leaves were enlarged a lot, and even the fine hairs on the leaves could be seen. He was extremely happy to see this phenomenon.

Bacon ran home immediately, rummaged through the cabinets, and found a glass ball. But through the glass ball, the text on the book is still blurred. He found another piece of diamond and hammer, cut out a piece of glass, took this piece of glass close to the book, and the text really magnified. The experiment was successful, and Bacon was ecstatic. Later, he found another piece of wood, dug a round hole, put the glass ball in it, and installed a handle to make it easier to hold, so that people could read and write more easily.

After continuous improvement, this kind of lens became the glasses that people wear now. There are myopia glasses for teenagers and reading glasses for the elderly, as well as glasses for various other purposes, which make it easier for people to study and work. Bacon has contributed to the progress of human civilization.