Be careful with eye medicine to prevent children’s false myopia from becoming true

Abstract: many people choose eyedrops when they are tired, but experts say that eyedrops can not be abused. If they are used for too long or the concentration is not well controlled, adverse reactions will occur, and pseudomyopia will be transformed into true myopia.

now, a wide range of eye drops and ointment on the market make myopia children and parents confused and difficult to choose. Experts tell us: eye drops and eye creams for myopia are nominally antispasmodic and blood activating, but their main components are inseparable from ciliary muscle paralysis agents, such as atropine and other mydriasis drugs. The normal use of

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mydriasis agents is to obtain the real diopter when matching glasses. The normal use of ciliary muscle paralysis agents in medicine is to relieve the contraction of ciliary muscle and completely loosen the adjustment of the eye caused by the contraction of ciliary muscle, so that the real diopter of the eye can be obtained, which is very important for wearing appropriate glasses. However, in the process of mydriasis, due to the dilation of the pupil after the use of ciliary muscle paralysis, it will cause mydriasis to have photophobia and difficulty in seeing close, which will also affect children’s study and life. In order to get true and accurate diopter, it is necessary to pay this price. However, if this mydriatic agent is used to treat myopia, it is a big mistake.

use ophthalmic drugs with caution to prevent children’s myopia from becoming false

long-term use of ciliary muscle paralysis will cause difficulty in normal pupil retraction.

first, ciliary muscle paralysis is an inhibitor, and long-term use will cause difficulty in normal pupil retraction, The pupil automatically adjusts its size according to the intensity of light to control the amount of light entering the eye and avoid the eyes from being burned by strong light, which is essential for the eyes to maintain normal visual function.

cycloplegics have side effects

. Secondly, cycloplegic inhibitors have certain toxicity and side effects. If the concentration is not well controlled or the dropping time is too long, it will aggravate the occurrence of adverse reactions, such as blushing cheeks, elevated body temperature, dry mouth, dry skin, etc. a few cases may also have allergic conjunctivitis or eyeliditis.

cycloplegic agent can change pseudomyopia into true myopia

what’s more, some ophthalmologists have found through animal experiments that long-term use of cycloplegic agent eye drops will lead to prolongation of ocular axis, resulting in the occurrence of true myopia. For example, in the comparative experiment of atropine and pilocarpine, rabbits were divided into two groups, One group of rabbits received long-term drip or subconjunctival injection of atropine solution (atropine is a commonly used mydriatic drug in clinic). One year later, the anterior and posterior axis of the eyeball became longer, the ciliary muscle atrophied, the sclera became thinner and tended to myopia. However, the rabbits treated with pilocarpine had no such change. Others used monkeys to do experiments and obtained similar results.

As we all know, pseudomyopia is a phenomenon that the ciliary muscle continues to contract and spasm due to the long-term nearsightedness of the eye, which makes the ciliary muscle that should be relaxed when the eye looks far can not be relaxed. If the ciliary muscle paralysis is used to treat pseudomyopia, it is possible to improve vision and reduce diopter because the spasmodic ciliary muscle is relaxed in a short time. However, it is an indispensable function for human eyes to see objects clearly through the alternating contraction and relaxation of ciliary muscles. The closer the light from less than 5 meters away from the eye, the greater the divergence angle, the more it needs the contraction of ciliary muscle, so as to make the lens convex and enhance the light convergence ability, so as to advance the imaging point that astigmatism should converge behind the retina to the retina, so that the human eye can see the nearby objects. This is a functional compensation for the eyes to see near objects.

if the mydriasis drug that inhibits or paralyzes the ciliary muscle is used for a long time, some adjustments that should not be made when the eyes look far are loosened, but some adjustments that must be made when they look close are also lost. Then, when looking close, the ciliary muscle will not contract, the lens will not become convex, and the divergent light from the near will converge behind the retina. At this time, to see the near objects, we can only lengthen the anterior and posterior diameter of the eyeball to make the retina wrong, so as to comply with the current situation that the imaging point is behind the retina. This is that the loss of functional compensation leads to structural compensation. When there is a problem with functional compensation, it is likely to be pseudomyopia. At this time, the functional abnormality is reversible. Once the structural compensation is stimulated, that is, the eye structure is abnormal, the front and rear axis of the eye becomes longer, and the longer eye axis is impossible to retract. In this way, it becomes true myopia, and the change at this time is irreversible.

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it can be seen that dropping mydriatic drugs to relax and regulate to treat pseudomyopia is absolutely undesirable. It will only further transform pseudomyopia into true myopia and aggravate the development of true myopia.