Introduction:
Eye drops are so common that everyone needs to take a few drops. In recent years, there have been more and more trips abroad, and some foreign Internet celebrity eye drops have also become must-buy commodities abroad. However, a few days ago, Canada just banned a batch of Japanese Internet celebrity eye drops. Some experts said that this is because some ingredients of this eye drop have large side effects and may cause certain pressure on the cardiovascular system.
However, a few days ago, Canada just banned a batch of Japanese Internet celebrity eye drops.
Some experts said that this is because some ingredients of this eye drop have large side effects and may cause certain pressure on the cardiovascular system. However, many domestic e-commerce platforms can still see this Internet celebrity eye drop on normal sales.
As a result, many friends may have questions: Is this Internet celebrity eye drop harmful, and can it be used?
In fact, this time the Japanese Internet celebrity eye drops were removed from the shelves in Canada, mainly because they were not registered by the Food and Drug Administration, and the simple understanding is that there are some problems in administrative procedures, not because the toxic side effects of the ingredients in the drug are banned.
Active ingredients:
Some of the active ingredients in this eye drop may indeed be potentially harmful. However, objectively speaking, the content of these ingredients in eye drops is very low, and the amount that can enter the bloodstream and reach the whole body is even less. Generally speaking, as long as it is used fairly, it will not be much of a problem.
However, regarding the use of eye drops, we actually have many misunderstandings in our daily lives, so let's let Tadpole-Jun take stock for you.
1. Can eye drops treat dry eyes?
There are many causes of dry eyes. It may be accidental, such as staring at the computer screen for too long, not taking a break in time... It may also be caused by a disorder, such as dry eye syndrome, in which patients may experience a foreign body sensation, pain, and even blurred vision in addition to dry eyes. In addition, diabetes and rheumatoid arthritis may cause dry eyes.
From this point of view alone, it is absolutely not advisable to take a bottle of eye drops casually when encountering dry eyes.
However, dry eyes are described by two mechanisms: either insufficient tear secretion or excessive tear evaporation. Therefore, if you encounter dry eyes, you can first use a little artificial tear or humidify the room. If the situation does not improve, or even other symptoms appear, be sure to go to the hospital in time.
2. Can eye drops eliminate redness in the eyes?
Yes, but it's best not to do it.
There is more than one reason for the formation of red blood capillaries, dust, allergies, staying up late, etc. can all cause blood in the eyes. Their common feature is the appearance of harmful substances (foreign substances, allergens, metabolic waste) in the eyes. As a result, the eye will dilate blood vessels, accelerate blood circulation, and transport harmful substances away as quickly as possible.
The reason why eye drops can eliminate redness in the eyes is because it contains adrenal receptor agonists such as oxymetazoline hydrochloride and tetrahydrozoline hydrochloride. Adrenal receptor agonists work by constricting blood vessels. Therefore, redness in the eyes can be made less noticeable.
That is to say, eliminating redness with eye drops is a palliative but not a cure, because the harmful substances in the eyes have not disappeared. So once discontinued, redness reappeared quickly, often more pronounced than before.
If you really want to control redness with drugs, you can try artificial tears. Artificial tears are similar in composition to tears and can dilute harmful substances and make red blood slowly disappear.
Myopic patients, or problems with the eyeballs - the anteroposterior diameter is too long, or there is a problem with the refractive system - the cornea, lens diopters are too large... Either involves structural changes and there is no way to treat them with eye drops.
Just back few years ago:
In 2018, two eye drops appeared that claimed to treat myopia.
One is atropine. In the 19th century, scholars proposed that atropine could affect the diopter of the lens and may be able to treat myopia. Studies in recent years have shown that atropine has some effect on controlling (rather than curing) myopia — it may slow the progression of myopia. However, atropine has many side effects and should not be promoted on a large scale until further research results appear.
The other is Nanodrops, an eye drop invented by Israeli scholars that contains nanomaterials. From the report, to use this eye drop, first of all, the degree of myopia is not deep, secondly, a laser is used to etch a pattern on the cornea, and finally, the eye drops are dropped into the eye, and the nanomaterial will activate the pattern and repair myopia.
Not to mention that this is more troublesome and less applicable than serious laser surgery, the key is that Nanodrops has not completed fundraising until January this year, and clinical trials are even more remote.
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