Wednesday, July 21, 2010

Eight cases should not wear contact lenses

Long-distance cycling contact lenses will harden

If the regular long-distance bicycle or motorcycle, we should not wear contact lenses. Because the bike when traveling around the speed of air flow will be significantly accelerated, so that the water contained in contact lenses in sharp decline, the lens gradually drying, hardening, over time, hardened glasses may damage the cornea is very thin epithelium, cause eye pain, itching, redness or inflammation. Meanwhile, the cycling of dust and other foreign matter more easily enter the eye, causing eye discomfort or even infection.



High intraocular pressure during menstruation should not wear contact lenses

Women in the menstrual period is higher than normal IOP, the eye is also more easily around the congestion, dysmenorrhea, especially women. If you wear contact lenses this time would adversely affect the eye.

Cold wearing contact lenses will increase inflammation

When cold, often accompanied by mild inflammation in the retina, lens easy to increase the inflammation. And the hands of patients with a large number of viruses and bacteria, easy to get along with, enter the eye when wearing glasses. In addition, many inhibit the anti-cold medicines contain the ingredient tear secretion, resulting in contact lens is too dry, reduce transparency, thereby affecting vision. Therefore, experts recommend: the flu is best not to wear contact lenses.

Fly a large contact lens on the eye injury

Passengers by air, the body is not the same environment with the ground, wearing contact lenses air, eyes due to dry air and cabin air pressure imbalance caused by the impact, there all kinds of discomfort, as soon as bubbles under the lens, hypoxia and easily lead to corneal edema, not only likely to cause vision loss, there may be issues such as corneal ulcer. This is because the air pressure at high altitude will affect the shape of the cornea, contact lenses are easily deformed, with long dry contact lenses also make the material becomes very fragile, if fragmentation could lead to more serious problems. Experts advise that end, in the front of the plane, the best off contact lenses, can be prepared a common, lightweight glasses. If you feel discomfort in her eyes, can close their eyes a rest, do some simple eye massage, and so on after the plane is doing, remember not to hard rubbing the eyes.

More serious consequences for pregnant women wearing contact lenses

Statistics show that 30% of pregnant women to wear contact lenses when the eyes will be some problems if not treated in time will affect the normal life, even as the taboo medication during pregnancy, increasing more difficult to treat. "Maternity wear contact lenses, corneal damage bear the brunt, while also trigger a host of other conditions." Experts say, because the endocrine system of women during pregnancy greatly changed, its mild corneal edema occurs, making the corneal thickness; The lens itself is blocking the corneal contact with the air, pregnancy continued to wear contact lenses, will increase the degree of corneal hypoxia, decreased corneal sensitivity, acute corneal injury prone.

Wear contact lenses while swimming will be adsorbed bacteria

Wearing contact lenses on the more stringent requirements of environmental conditions, both swimming pool or beach, we can not guarantee that the eyes in clean sanitary conditions. Contact lenses, adsorption, microbial pathogens in water easily deposited on the lens, the swimmers should not wear contact lenses. Always wear contact lenses, eye already has some inflammation, combined with dirty water stimulation is more likely to cause eye disease. Epidemic conjunctivitis, trachoma, etc., can be transmitted through swimming.

Best not to wear contact lenses with a computer

Many people who wear contact lenses, a long time against the computer, eyes dry hair, hair shy, very uncomfortable. This is because the number of reduced blinking. Is now widely used in contact lenses are manufactured using polymer materials, oxygen permeability not good, to some extent hindered the oxygen in the eye directly to corneal hypoxia. With long front of the computer, the eyes of high tension, normal blink 20 times per minute, while wearing contact lenses a long time with computers and the number of per-minute blink only four or five times. With contact lens use during bad health habits, can cause keratitis, corneal ulcers, there will be eye pain, photophobia, but also caused severe eyelid spasm, induced corneal neovascularization and ultimately affect vision.

Spring to minimize wear contact lenses

As spring temperatures fluctuated so that people are susceptible to influenza, thus triggering viral conjunctivitis and viral keratitis. Then the eye environment is very fragile, if often wear lens and health, to inflammation. Meanwhile, the spring in the air of pollen particles if they enter the eyes, some people will get on allergic conjunctivitis. With China's north winds often blowing sand in the spring weather, sand and dust blowing in the eyes, can also cause eye infections and cause other inflammatory. Wearing contact lenses when the eye is relatively fixed at the surface to the bacteria and viruses which provides a breeding environment. When pollen or dust inadvertently enter the eyes, it is easy to attach to contact lenses, the resulting viruses and bacteria. Experts suggest that the spring weather in the high winds blowing sand, as we choose to wear ordinary frame glasses, so that on the one hand glasses played a protective effect, blocking dust into the eyes, on the other hand, once the dust particles into the eye, lacrimal gland secretion The tears can wash away particles in time.

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