Ninety percent of eye drops contain preservatives Nowadays, in addition to nap pillows and coffee, more and more white-collar eye drops are also listed as “office standard”, after a long time on the screen feeling astringent eyes, anytime and anywhere to take out a few drops to relieve eye discomfort. But a few days ago, a “most eye drops contain preservatives, long-term use may get chronic conjunctivitis, blepharitis, etc.” the microblogging white-collar workers collectively into a panic, but also triggered a number of media tracking reports, the conclusion shows that: nearly 90% of the eye drops on the market contains preservatives! The media reports soon caused a hot debate on the Internet, “ten bottles of eye drops nine poison”, eye drops really have preservatives? What kind of damage will eye drops containing preservatives do to the human body? What kind of eye drops are safe to choose? Many questions have come and gone, and all sides are arguing, today the reporter interviewed the famous ophthalmic pharmacologist Liu Jia on the issue of “eye drops preservatives”, let Professor Liu take us to uncover the truth behind this series of mysteries. Experts: more than 5ml package of eye drops, 95% of preservatives Reporters in accordance with the requirements of Professor Liu, randomly selected 10 best-selling brands of eye drops on the market, including 12ml bottles of three, 8ml bottles of two, 10ml bottles of five, surprisingly, these 10 varieties of eye drops are listed by her as “preservative products “. Professor Liu explained: “Eye drops sold on the market to small, medium and large specifications, the capacity is generally more than 8ml, but clinically more than 5ml package of eye drops, more than 95% will generally contain preservatives such as benzalkonium chloride, and preservatives on the eye is by no means without side effects!” It is understood that eye drops preservatives are quaternary ammonium salts, esters, organic mercury and several other major categories. Among them, quaternary ammonium salts is the most commonly used preservatives, including benzalkonium chloride, benzalkonium bromide, such preservatives have a cleaning effect on the cornea, will damage the corneal epithelial cells; and esters include hydroxyphenyl esters, etc., its antibacterial ability is weak, not as common as quaternary ammonium salts; organic mercury is the least used type of preservative. For eye drops with preservative ingredients, Professor Liu said: “Preservatives are mainly to avoid microbial contamination of eye drops after opening with air and human contact, the longer the use cycle of eye drops, the greater the amount of preservatives contained within. In addition to destroying the corneal epithelial microvilli and reducing the stability of the tear film, preservatives also accelerate the evaporation of tears, damage the corneal epithelial cells, so that the corneal congestion, edema, inducing foreign body sensation, stinging sensation, burning sensation, dryness and other symptoms, as opposed to artificial tears such as Renzi, commonly used such eye drops are very harmful to the eyes.” In addition, in the media public reports, there is no shortage of preservative eye drops caused by serious cases. 2010, Shandong man Liu continuous use of a brand of eye drops for two years, triggered a toxic reaction of the epithelial cells of the cornea, resulting in metaplastic conjunctivitis; 2013, Hebei woman surnamed Zhang, long-term use of eye drops claiming to relieve vision, resulting in serious corneal ulcers. Manufacturers play ball, consumers are a little “dumb” preservatives on the human body harm is obvious to all, why manufacturers and consumers have previously remained silent? According to the reporter’s visits and observations, in fact, most of the eye drops are labeled with preservatives, the reason why many people ignore the preservative ingredients of eye drops, because the manufacturers are generally playing the ball. Reporters found that commercially available eye drops are almost always labeled only “benzalkonium chloride” “trichloro-tert-butyl alcohol” “benzalkonium bromide” “potassium sorbate ” and “ethyl hydroxybenzoate” and other preservative ingredients, and there is no clear “preservative” words, for the preservative may bring harm to the eyes also do not have any clear tips. At the same time, the words “anti-fatigue”, “improve eyesight”, “relieve dryness” frequently appear in the most prominent position of the package. Compared to the manufacturers’ secrecy, the performance of consumers is generally a bit “dumb”. The reporter met a woman who was buying eye drops in the interview process, and was asked, “Do you know that eye drops may contain preservatives, which can cause damage to the eyes?” She said that most of her friends who often look at the computer around her are dropping eye drops to relieve fatigue, never heard of eye drops containing preservatives, and did not know that preservatives can be so harmful to the human body. After the reporter told the situation of eye drops preservatives, the woman was quite shocked and eventually bought a box of Runzi Dextran 70 eye drops to replace the initial choice of a brand of 15ml eye drops with artificial tears. Daily health care, artificial tears are better Preservatives are very “hurt”, but eye discomfort can not be left alone, as consumers and where to go from here? In this regard, Professor Liu said that ordinary people usually use the health care eye drops, unlike glaucoma and other long-term patients use the drops, one is not required to use on a regular basis for life, the second is the choice of artificial tears without preservatives. Especially for those who have damage to the eye surface, such as dry eyes, they must choose artificial tears such as Renzi, which does not contain preservatives, has no side effects and is packaged in small doses to ensure quality. The Renzi dextrose 70 eye drops mentioned by Prof. Liu is exactly the product that the lady interviewed by the previous reporter eventually purchased. It is a proposed natural sterilization eye drops with the main ingredient of dextrose 70, which is a polymer of high molecular glucose produced by sucrose through the fermentation of the intestinal membrane-shaped Cryptococcus lucidus LCM-1226 bacteria and refined through strict processing. The overall ratio of Renzi is similar to the composition of human body’s own tears, with good water retention and fine moistening, and is a more well-known product among commercially available artificial tears. According to public information, Renzi is a topical eye medicine developed and produced by Qilu Pharmaceuticals, which can be fully integrated with human tears during the process of use to quickly eliminate symptoms such as soreness, burning and dryness in the eyes, while regulating eye functions, repairing corneal epithelial cells, rebuilding the healthy ecological environment of the eyes, and preventing the onset of various eye diseases, thus having excellent therapeutic effects on dry eyes, and is also very suitable for It is also very suitable for daily eye care use, relieving all kinds of eye discomfort symptoms, gently protecting the eye from irritation and safeguarding eye health. Eye drops were originally designed to protect the eyes and add a healthy weight to the windows of the mind, but if the eyes are harmed by the choice of products containing preservatives, it is the opposite and more than worth the loss. Scientific eye care, please consumers first choose the appropriate eye drops.