According to a World Health Organization research report, as of November 2013, approximately 1.4 billion people worldwide suffered from myopia. Among them, the proportion of Chinese myopia population reaches 47%, which is the same as the United States (42%), Japan (46%), Singapore (59%) and Hong Kong and Taiwan regions (56%). Facing the trouble of myopia, convenient and beautiful contact lenses have become the first choice for many people. However, in recent years, various cognitive misunderstandings about contact lenses have discouraged many consumers. Dr. Pan Qing, deputy chief physician of the Department of Ophthalmology of Zhejiang People's Hospital, answered common questions about contact lenses encountered by consumers and taught everyone to purchase contact lenses correctly.
Experts explain three common questions about contact lenses
1. Often wearing contact lenses can lead to hypoxia and decreased resistance in the eyes, which can cause various eye diseases?
First, before wearing contact lenses, ask your ophthalmologist or optometrist to check your eye condition to determine whether it is appropriate to wear contact lenses. If the eye condition allows, then choose the right lens, reasonable use cycle, strict care, and standard wear, contact lenses are safe. The cause of hypoxia after wearing glasses is mainly related to the choice of lens material and wearing method. It turns out that silicone hydrogel lenses have excellent performance in terms of oxygen permeability. Studies have shown that ATV's Hengrun oxygen daily throw silicon hydrogel lenses can ensure that the corneal oxygen consumption during daily wear is no different from that without any lenses. At the same time, Avision's hydrogel lenses can also ensure the corneal oxygen demand when the eye is worn. Therefore, a series of problems caused by lack of oxygen in the eyes due to contact lens wearing will not occur. In terms of wearing styles, falling asleep wearing glasses at night can also cause hypoxia in the eyes, so sleeping without glasses on daily wear is also an important method to prevent hypoxia.
2. Can contact lenses cause dry eye?
Often wearing contact lenses of certain materials does affect the stability of the tear film and cause symptoms of dry eyes. However, lenses with the latest moisturizing technology functions, such as ATV, can lock the moisture in the lenses without losing, and keep the eyes moist for a long time. Therefore, choosing the right lens can effectively alleviate the dry eye problem caused by contact lens wearing. When wearing contact lenses, using artificial tears without preservatives can obviously relieve the symptoms of dry eyes or foreign body sensations.
3. Wearing contact lenses often rubs the cornea, causing inflammation and even ulcers, causing an irreversible decline in vision?
The friction of the lens on the cornea mainly depends on the smoothness of the lens material and the sediment on the lens. Choosing soft and smooth short-cycle replacement lenses can effectively avoid corneal damage caused by lens rubbing the cornea. Studies have shown that the smoothness of ATV Uribo Constant Oxygen is basically the same as that of the cornea, so contacting the cornea and the conjunctiva with the lens is like direct contact between the cornea and the conjunctiva. Long-term wearing can also ensure eye health. In fact, keratitis or corneal ulcers clinically associated with contact lenses are caused by improper wearing and care. Therefore, for people wearing contact lenses, it is very necessary to wear good education.
Dr. Pan said, "If you wear contact lenses correctly, the harmful effects of contact lenses on your eyes are very small. As a third type of medical device products, consumers must pay attention to the purchase and wearing of contact lenses; In addition, consumers can not only choose contact lenses from the perspective of aesthetics and price, but should choose contact lenses that are healthy and comfortable and meet their own conditions and needs under the guidance of ophthalmology or optometry professionals. "https://www.gift-package.com/