Taiwan’s children’s myopia rate has been steadily rising. To curb children’s degree of myopia, “corneal casts” has become a very popular treatment in recent years. However, for orthokeratology tablets, My parents still have many questions and concerns. Here we will ask questions for the public’s more frequent questions.
Orthokeratology correction: degree limit and age
How old can children wear corneas? The minimum age limit for corneal casts approved by the Ministry of Health and Welfare is 9 years old. Although the maximum age limit is not limited, it is better to be under 18 years old because the older the cornea is, the less likely it is to shape the cornea. Poor. In terms of degree, it is recommended that the following is less than 500 degrees of myopia and less than 150 degrees of astigmatism, because the deeper the degree of myopia is, the more convex the cornea is. The greater the strength to flatten the cornea, the faster the cornea will rebound.
Except for the degree and age limit, corneal curvature is too steep or too flat to be suitable. In addition, those with blood glucose problems, hypertensive persons, hyperopia and simple astigmatism, and corneas have been injured and left scars, or have other ophthalmic diseases such as: cornea Inflammation, iritis, glaucoma, severe dry eyes, etc., or those with severe allergies are not suitable for wearing orthokeratology lenses. As for high myopia of 600 degrees or more, although it has control effects like wearing, it is easier to have residual degrees. Special attention should be paid to the fact that if the hygiene habits are too poor to be a true cleaner or if it is impossible to cope with 8 hours of sleep per day, it is not suitable to wear orthokeratology lenses.
Is Cornea Tablets Safe?
In terms of safety, the orthokeratology lens is a hard high oxygen permeability lens material, its oxygen permeability far exceeds the safety of the cornea oxygen demand, in addition, because it is not surgery, no wound, just change the curvature of the cornea, if necessary, can be stopped at any time Wearing, after some time, the cornea will return to the state before wearing, the cornea’s integrity, thickness have not changed, will not cause permanent damage to the eyes.
However, the most important thing to pay attention to is that the cleanliness of the cornea-plastic sheet must be carefully cleaned. Otherwise, if it is infected during the wearing process, causing corneal ulcer, it may result in serious surgical treatment or blindness. as a result of.
Many parents worry that their children will have allergies and will rub their eyes when they sleep at night. Will the orthokeratology rupture in the eyes? Basically, this situation is unlikely to happen. So far, there have been no cases in which a person rubs a plastic tablet while he is sleeping. However, rubbing your eyes may cause displacement, so if it is uncertain that the child is not suitable for wearing plastic tablets, you can first ask the doctor and the manufacturer to test the corneal curvature and allergic reaction, if possible, then take it home to wear, after a week or two Return to the clinic to check if it is suitable for wearing orthokeratology.
However, parents must be reminded that the longer they wear, the longer they can wear it! The cornea itself has a fixed resilience, and will gradually return to its original shape. Therefore, wearing too long can not extend the timeliness. It should be noted that it is best not to wear more than 10 hours to avoid corneal hypoxia caused by overtime!
In short, although corneal plastic tablets have very good results in suppressing the increase of myopia, they still need to maintain good eye-protection habits. If they continue to use 3C products for a long time, corneal plastic tablets will not block the increase of myopia.
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