Contact lenses are some of the most widely used devices for vision correction, due to the convenience they bring to users. This is also why so many people want to have a try, either for vision rebuilding or cosmetic purposes. However, people are strongly suggested to consult with their eye doctor before using these devices. This is because lenses are medical devices and should be used under the guidance of eye specialists, though there are also some non prescription lenses.
People are usually asked to offer eye prescription if they want to buy lenses at any places in US. This is one of the best ways to ensure eye health and vision safety. Therefore, people should do as what their eye doctors have suggested and what are written on their prescription, which is completely made according to users personal condition.
If people do not want to maintain lenses, they may have a try on disposable lenses. These special lenses can ensure great eye health and vision safety- they can be discarded after wearing without caring.
On the whole, all contact lenses that people now use can be fallen into two major groups, namely, soft lenses and hard lenses. The hard lenses are gas permeable and can offer eyes sufficient oxygen- risk of getting infected will be greatly reduced.
In fact, there are also other special lenses, called IOL lenses, which can be used to treat cataract and many other serious vision problems in certain eye surgeries. IOL lenses will be used to help eyes maintain their original functionality. IOL lenses can be fallen into various types, like monofocal lenses, multifocal IOLs, etc.
IOL lenses will be inserted into eyes via certain surgeries, which are ideal alternatives for people suffering from serious cataracts and other eye diseases.
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