Up to 2% of the population is currently around the world put the contact lens, or about 125 million people. Contact lenses and glasses, has advantages and disadvantages that are different, and this is the comparison between the contact lens and glasses.Advantages of contact lenses compared to glasses1. view more eyewear2. the size of an object seen through the contact lens will close more than reality eyewear.3. add beauty, especially the ones that have the highest value.4. put the sport and safety over glasses5. There is no reflection, like glasses.6. There are no ugly joints on the face such as the nose or a wound dark temporal direct.7. put the sunglasses on satisfied.8. use the same patient as well as the "eyeball shakes" (Nystagmus).9. the patient can look through the center of the lens at all times.Disadvantages of contact lenses compared to glasses1. it takes a lot to put on especially during first use.2. wasted expense, such as cleaners3. requires a period of adjustment to the eye.4. not applicable to patients with Prism5. for the two contact lenses require a very long time to practice using and adjusting the sight.6. tear easily if not careful7. the contrast of an image, especially if there is little more than glasses astigmatism.8. an opportunity lost and lost the lens cleaners. In the case of people who have never used it before.9. eye inflammation if people use poor cleanliness However, to use the icon tags lenses and glasses, it is important that the user ease of use?
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