Guide to Contact Lenses

Connection between dry eye and contact lenses

Dry eye is a common condition that may bother a lot of people. This condition may even lead to more serious problems such as burning eye or itchy eye as well as other uncomfortable eye problems

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Basic aspects of contact lenses

According to different eye conditions such as light sensitivity, it takes varying periods to adjust to contact lenses. In general, rigid gas permeable contacts require more time for adaption than soft ones. Most contacts in different materials need daily care, while daily disposable contact lenses and some extended wear contacts can be discarded on removal.

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Contact lens associated eye infection

Currently, gas permeable contact lenses are also available in high-index materials, which have long been used only for eyeglass lenses. Using high-index materials, Paragon Vision Sciences published its HDS HI 1.54 GP lenses, which are more comfortable and allow more oxygen to reach the cornea.

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Special post-surgery contact lenses

Most of the patients who received laser vision correction surgeries such as LASIK and PRK get a perfect vision recovery. However, a small portion of patients may suffer from glare, halos and starbursts as well as irregular astigmatism after these surgeries, due to the different ways that the patients’ corneas respond to laser energy.

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Sources for buying contact lenses

Currently, contact lenses are provided by various sources, because prescription has been an independent medical service. With your prescription, customers can buy contacts from ECPs, optical stores, warehouse clubs, and online stores and so on.

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Potential risks of wearing contact lenses

GP lenses have a disadvantage that they may cause eye irritation, after a gust of wind containing dust and other airborne materials. In fact, GP lenses are smaller than the cornea and float on the tears. In contrast, soft lenses cover more part of the cornea and are less likely to cause this problem. Some contact wearers need a plunger to remove their lenses, although the most convenient way is to use fingers.

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Various types of contact lenses for teens

For convenience and a wider filed of view, more and more people choose contact lenses instead of eyeglasses. The 2007 Contact Lenses in Pediatrics (CLIP) study showed that 169 teenagers and children age 8 to 12 who have worn contacts for three months felt more confident and performed activities better than before.

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Problems we may encounter with contact lenses

A competent eye care practitioner is critical to offer proper lens fitting. Some contact lenses wearers worry about the appropriate position of their lenses. In fact, wearers should only put their lenses straight on the cornea. And well-fitted lenses will always stay in the right position as the eyes move.

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Primary knowledge of astigmatism contact lenses

Toric contact lenses for astigmatism correction are available from various brands, with specific materials, designs and features. In general, toric lenses are designed to maintain stable on the cornea. However, a small portion of toric lens wearers may experience lens rotation, which is surely to affect vision quality.

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Post-surgery contact lenses for visual remedy

Although there is high success rate, refractive surgeries including LASIK are not perfect. Postoperative visual problems may affect overall correction outcomes.

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