Expert guidance on the proper use of contact lense

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dry eye: often wear contact lenses, dry eye may occur, there blurred vision,[link widoczny dla zalogowanych], eye dry and intolerable, and accompanied by intense local itching sensation, dry eye associated with wearing contact lenses are generally abnormal tear dynamics.

Second, not long-term wear. There are two meanings, first, the use of contact lenses have their own time, is generally divided into daily disposable, monthly disposable, half parabolic type, years away. Can not wear over their useful life, the use of a period of time should be promptly replaced. Because adsorption of lens material, the dust in the air, tear proteins accumulate in the lens surface will be attracted to the long period of time can cause keratitis and other eye diseases. Second, time should not be too long to wear glasses. Whether it is day use of soft lenses, or corrective overnight OK lens use, can not long wear. Evidently, the time has never been approved had to wear contact lenses can be more than 24 hours. Contact lenses must be a day off, or prone to cause corneal hypoxia, triggering a series of complications, and even cause blindness.
In addition,[link widoczny dla zalogowanych], patients with keratitis too cold and do not wear contact lenses is best to prevent the recurrence of keratitis caused by invasive bacteria.
A: First, matching glasses,[link widoczny dla zalogowanych], contact lenses must go to a regular store or hospital ophthalmology, contact lens wearers who regularly go to the hospital the best eye examination, under the guidance of a doctor to wear.
because contact lenses are unique, high quality and safety requirements. Is not qualified products sold in stores, may be of unknown origin, there is security risk. Even really is imported, it may be to do a small workshop, or OEM manufacturers do, the quality and safety are still worrying. Some small manufacturers in the production of workshops over the U.S. use of pupil Shihai pigment makes the eyes produce allergic reactions. Therefore, the purchase of contact lenses must go to a regular store, buy the regular products. Street shops sell unlicensed products are not reliable.
allergic reaction: If the lens care solution or a component in allergies, adverse reactions can also occur after wearing. Most of this appears in color lenses, also known as
keratitis: in medicine, contact lenses are called For a long time to wear contact lenses cause bacterial keratitis is an important factor. Every eye blink, the eye will cause the contact lens surface with a certain degree of friction, and it covers the surface of the cornea, the cornea is difficult to absorb oxygen from the air directly, so long, or continuous wear contact lenses, will cornea in the continuous hypoxia, corneal epithelial edema, erosion, and if there are bacteria or viruses,[link widoczny dla zalogowanych], can lead to keratitis, and even the formation of corneal ulcers.
Johnson recently announced the recall of about 10 million boxes called a small amount sold to South Korea, Singapore, New Zealand, China, Hong Kong and some European countries. Of these, about 4,000 boxes sold in Hong Kong, as being caused eye irritation and other issues will be complaints, but was a voluntary recall. Although not involved in the recall of the models on sale in the mainland, but this still raises concern about the quality of the lenses. In recent years, contact lens market is booming, in addition to the regular optical shop, a number of roadside shops, beauty shops also sell jewelry from a Good and bad market, coupled with people's understanding of the existence of errors contact lens use is not standardized, making contact lenses instead of hazards. Recent interview in Shanghai Eye Disease Prevention and Treatment Center physician Dr. Zhu Jianfeng, deputy director, asked him to answer a few questions about contact lenses.
2, a small shop,
dry eye patients: patients with dry eye is generally not recommended to wear contact lenses, particularly contact lenses with high moisture content. Because contact lenses, glasses adhesion between itself and is relying on corneal tear, and tear secretion in patients with dry eye is not normal, contact lenses may cause further alienation of tears, for the eye itself is a kind of self-mutilation of injury . Despite the high moisture content when wearing glasses more comfortable feeling, but also the contact lens will absorb more moisture, so wear is not suitable for dry eye patients.
1, everyone can wear contact lenses it?
Third, do a good job cleaning care. If you did not do a good job cleaning and maintenance, dirt accumulation on the lenses not only reduce the life of the lens, can also cause eye damage is difficult to restore. Recommended cleaning contact lenses every day, cleaning off the best care solution drained, do not continue to use. Note the use of medicine and the lens term change in time. About every six months for a preservation box.
reporter visited a number of random shops, stores glass cabinets are usually placed dozens of small bottles, each bottle is a medication blister with colored contact lenses, the owner said it is now very popular However, the labels on these bottles are mostly not translated in English, or read
A: The contact lens direct contact with the eye, a medical equipment. Under these provisions, sales of contact lenses and care solutions business must obtain a The prerequisite for obtaining the certificate is to have complete equipment, optometry and eye check. Some streets have nothing to do with the optical shop store, not only do not have professional equipment, sales of products is not normal.
A: not everyone can wear contact lenses. Best not to wear the following groups:
same time, the following situations also try not to wear contact lenses.
glaucoma, chronic dacryocystitis, conjunctivitis, corneal ulcers, hyperthyroidism and other diseases: If you have with contact lenses, and are in the inflammation of the eyes, to wait until the inflammation disappeared after wearing.
3, wear contact lenses What are common eye diseases?
allergic patients: those who have allergies can lead to complications of wearing contact lenses have a slight inflammation, eye itching, redness, conjunctivitis and eye swelling. If these symptoms for long periods of treatment, may endanger vision. If there is inflammation, it is best to stop using. If 2 to 3 days after the inflammation has not reduced immediately to the hospital.
Answer: wear contact lenses because of eye diseases are caused by keratitis, dry eye, conjunctivitis, severe and even lead to blindness. Here are some common eye diseases.
in the elderly: 40 years of age, eye tissues will be more obvious degenerative changes occur. Ocular resistance to decline, particularly the ability of the eye decreased tolerance to hypoxia, at this time if the surface of the eye lens wear thin, the eye will lead to hypoxia, and thus prone to corneal infection, ulcer complications.
pregnancy: pregnant women, hormonal changes, so that changes in body water content, some swelling of the eyelids,[link widoczny dla zalogowanych], cornea thickening, especially in the last 3 months of pregnancy because of corneal water content, more obvious thickening will be optional with the normal contact lenses do not coincide, causing eye irritation. Edema disease in pregnant women with pregnancy in particular can not wear contact lenses.

menstrual period: women passing through the period and will go to a few days before menstruation, increased intraocular pressure often than usual, around the eye is also easier to congestion,[link widoczny dla zalogowanych], especially in women with dysmenorrhea symptoms worse, then if wearing contact lenses, would adversely affect the eye.
4, how to properly wear, prevention-related eye diseases?
long ride: long-distance cycling or the opening of scooters, motorcycles, air flow speed, so that the moisture reduction of soft contact lenses, the lens gradually dry and harden, the eyes will feel discomfort, over time, hardening of the lens will damage the cornea, causing eye pain or bacterial infection.