Guide to Contact Lenses

Contact lenses applying techniques

Both experienced and newbie wearers may have specific problems with contact lenses. One of the common problems is inside-out lens, even though it never brings any damage. When the lens on your finger forms a “U” with the top edges flared out, rather than a perfect “U”, it is inside out. Some contact lenses offer a handling tint or brand laser marking to help you see them easily.

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The conveniences of bifocal contact lens

Bifocal contact lens is a relatively new member in the family of bifocals. For their special designs and features, bifocal contact lens did not come into being until 1930s. But the first bifocal contact lenses are not ideal alternates for many people. And many people did not bear very good passion for these newly designed bifocal contact lenses.

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Asymmetric monovision contact lenses

Unlike bifocal contact lenses, a monovision-treated lens has only one power. Since bifocal contact lenses have two focal points on a single lens, people may take a period of time to adjust to the power change during vision switch. The fitting technique monovision provides another effective solution to prescription eyes.

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Astigmatism corrective toric contact lenses

Nowadays, toric contact lenses are available in nearly all lenses types, such as soft materials, disposable, frequent replacement, multifocals and colored types.

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Wearing contact lenses may lead to Acanthamoeba Keratitis

Contact lenses always need careful cleaning and storing. If the wearer has poor health habits, a serious infection named Acanthamoeba may be aroused, which is very difficult to treat. To prevent this bothering infection, contact lenses wearers must follow the codes required by doctors and manufacturers.

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An introduction of contact lenses prescription

Currently, Americans in all 50 states can buy contacts both from ECPs and other sources such as optical chains, warehouse clubs and online stores. This privilege originates from a 2004 legislation that patients are entitled to obtain a copy of contacts prescription from ECPs without extra cost, which was only available in certain states before that time.

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Advantages and disadvantages of gas permeable lenses

Also called RGPs, rigid gas permeable or oxygen permeable lenses, gas permeable (GP) contact lenses are less-known than soft lenses. RGPs are different from “hard” contact lenses, which have disappeared today, although they were popular before the invention of soft lenses in 1971. PMMA hard lenses are uncomfortable and prohibit oxygen from passing through the lenses.

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A comparison between 30-day contact lenses and LASIK

If you are above 18, you can resort to LASIK for long term vision recovery, getting rid of daily removal, cleaning, and disinfecting of eyeglasses or contacts. There is actually another option to tackle these hassle problems: 30 days extended wear contact lenses that are approved by FDA.

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