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СочинениеIt’s difficult to overestimate the role of science and technology in our life. As the years go forward our life becomes faster, a lot of new things appear, our mind develops and it cannot stop. Nowadays we cannot imagine our life without inventions, we live surrounded by machines. We can appear in different point of earth within a day and can say «hello» to people who live in another point of the world. Every day either a new gadget is invented or an old one is improved, day to day appear more and more new things.
Different people appreciate new inventions differently. Some suppose that sophisticated gadgets are really useful and necessary, while others find them absolutely awful as they influence people badly. As for me, I think that gadgets make people`s lives easier.
Devices can save a lot of time as well as storage space, but we even don’t think about who and when invented it. One of the greatest inventions, in my opinion is contact lens.
A contact lens, or simply contact, is a lens placed on the eye. Contact lenses are considered medical devices and can be worn to correct vision, for cosmetic or therapeutic reasons. In 2004, it was estimated that 125 million people use contact lenses worldwide.
People choose to wear contact lenses for many reasons. Contact lenses have many benefits for wearers, including appearance and practicality. Many people choose to wear contact lenses as opposed to eyeglasses as they do not steam up, they provide a wider field of vision, and they are more suitable for a number of sporting activities.
Contact lenses have a remarkable history that goes back more than 500 years. It seems that people have always wanted a way to see clearly without having to rely on eyeglasses. It was simply a matter of time before the technology was available to deliver a practical solution.
The history of contact lenses began in 1505 when Leonardo da Vinci first described and sketched some ideas.
the concept of contact lenses goes back to 1888.
Adolph Fick first thought of making glass contact lenses in 1888, but it took until 1948 when Kevin Tuohy invented the soft plastic lens for contacts to become a reality..
Throughout the 20th century, contact lens history continued to evolve and dramatic discoveries were made that allowed the lenses to become more effective treatments for vision problems.
Until the 1950s and 1960s corneal lenses were expensive and fragile.
In 1960, the Czech scientist Otto Wichterle made the first soft contact lens. An era of soft contact lenses.
With the development of gas permeable materials and soft lenses in the 1960s and 1970s, contacts became safer and more comfortable.
Through the 1980s and 1990s, the technologies continued to improve. Disposable lenses also became more common due to their low price, hygiene benefits and simplicity of use.
Today, contact lens history and development continues with exciting new research to make them more and more effective, safe and affordable. There is a huge selection of options available for various eye conditions, as well as personal preference and even cosmetic purposes.