The functions of eye glasses

November 15th, 2009 by Michael Bansal Leave a reply »

There are many types of eye glasses in today’s glasses market. The lenses of the glasses have the functions that can both protect your eyes and correct your vision problems. Scissor glasses, prince-nez, monocle and the lorgnette are the common types in the past. Nowadays, people pursue the purpose both correction effect and aesthetics.

Nowadays, many different materials are used to make eye glasses lenses such as polycarbonate, CR-39 and plastic, which is really different from the type of traditional glass eye glasses. What is more, these kinds of materials are very durable and much lighter.

Synthetic eyeglasses can mitigate the damage of UV light, make the light easier through the lenses. Some of newest materials have amazing function to deal with the hard problems. For instance, the newest kind of synthetic material-izon, can even correct the high eye aberrations.

It is normal that different kinds of protective coatings using in eye glasses such as scratch coatings, anti-reflective coatings and hydrophobic coatings. By reducing glare, anti-reflective coating can be used in night environments, the hydrophobic coatings are easy to get rid of dirt and water. Plastic lenses use different coatings make them trendy.

The one of the main purposes of eye glasses is correct vision. People who have farsightedness, nearsightedness or astigmatism need eyeglasses to make them see clearly. Usually, people have to get prescription before they get the glasses.

Protecting eyes from flying debris or chemicals is another purpose of eye glasses, especially in some special industrial works or sports activities. Also, these kinds of glasses are adopted in some food industry and some laboratories as they can protect the eyes properly.

Sunglasses may be the most popular kind of glasses in eye glasses industry, which can be non prescriptive or prescriptive. Normally, they are used in the bright environments as they can reduce the UV light rays through glasses and protect eyes in shadow. The newest technique of sunglasses can make the glass lenses become sunglass in sun and clear lenses indoors.

The most fascinating of sunglasses is that they have many types of colors. People can pick out them according what kinds of actives they will do. For instance, when you drive, pick out yellow sunglasses can make you stronger color contrast and improve your perceptions. Also, they can reduce the glare which is really helpful for driving. When you purpose to play golf, you better choose brown lenses because they can distort color. Of course, many people choose sunglasses for no purposes but aesthetic, just according which one matches their complexions or hair.


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