Contact lenses, as the name suggests, wonderful in "invisible." It has the functions of ordinary Discount Oakleys Flak Jacket Sunglasses Cheap glasses for vision correction, but also lifted the glasses for the inconvenience, so wear contact lenses have become a today's fashion. However, contact lenses are not for all those who need glasses are applicable and who do not wear contact lenses?
, Schoolchildren are in strong growth period, not yet shaped the visual axis of the eye, if premature or longer continuous wear contact lenses, corneal hypoxia and physiological easy to produce side effects such as metabolic disorders; lens cleaning and disinfection lax, it will secondary infection; lenses if paths are incompatible with the cornea, can also cause corneal abrasion, epithelial shedding, severe cases can lead to corneal ulceration or perforation. Accordingly, if there is no special need students, or to wear glasses is appropriate.
Hands often with a large number of patients with flu germs, they are easy to take, into the eyes when wearing contact lenses. In addition, flu is often accompanied by a slight inflammation of the retina, wearing contact lenses cause inflammation. Many colds, cough, and pain medicines contain ingredients suppress tears. Contact lenses will reduce the amount of tear secretion is too dry; reduce transparency, thereby affecting vision.
People who have allergies to wear contact lenses can lead to complications, there was a slight inflammation, eye itching, redness, conjunctivitis and eye swelling. If these conditions are not long-term treatment may endanger vision. Allergies such as the need to wear contact lenses, it is best to use and only during the day suspended at least one day a week. If inflammation occurs, it is best to stop using. If 2-3 days after the inflammation has not reduced immediately to the hospital.
Diseases glaucoma, chronic dacryocystitis, conjunctivitis, corneal ulcers, hyperthyroidism and other with Cheap Oakleys Frogskins Sunglasses Outlet contact lenses, and eye inflammation are in; to wait until the inflammation disappeared after wearing.
Fever eyes of local resistance decreased tear secretion, B. subtitles will multiply, so that metabolites of bacteria deposited between the cornea and lens, resulting in lower oxygen permeability of contact lenses, corneal disruption of normal metabolism, thus cause bacterial corneal ulcers.
When long-distance cycling tourists, air convection accelerated reduction of the moisture soft contact lenses, lens gradually dry and harden, the eyes will feel discomfort. Over time, it will damage the lens hardens the cornea, causing eye pain or bacterial infection.
The elderly to 40 years of age would be more obvious eye tissue degenerative changes. Eye down local resistance, especially the ability of the eye decreased tolerance to hypoxia, at this time if the surface of the eye lens wear thin, it will lead to eye hypoxia, which is prone to corneal infections, ulcers and other complications. 40-60 year-old middle-aged man wearing contact lenses can be a short, 60 years of age or older is best not to wear contact lenses, otherwise easily lead to serious complications, resulting in permanent visual impairment.
Pregnant women are not suitable for Tiffany and Co Bracelet Jewelry Outlet contact lens wearers. When pregnant, because the human body secretion changes, decreased barrier function of the corneal tissue, reduced tear secretion, causing discomfort to wear, so it is best not to wear.