What is contact lens? How to use in English

The term "contact lens" derives from the concept of making physical contact between the corrective lenses and the eye. The word "contact" itself stems from the Old French word "conterec," which loosely translates to "holding against." In the early 19th century, scientists first began experimenting with the notion of using a small, corrective lens directly on the eye. However, their initial efforts resulted in numerous complications and discomfort due to poor material adaptability and a lack of proper technology. It wasn't until the mid-20th century that modern contact lenses made their debut. Contemporary contact lenses are typically made of flexible plastics or silicone elastomers and are designed to rest on the eye's cornea, correcting refractive errors without the added bulk of traditional eyeglasses. The word "contact lens" has since become a cultural icon, frequently referenced in popular media such as science fiction and medical drama, representing a significant advance in modern optics and ophthalmology.