MacGregor's plastic corneal mirror is imported from the United States, and I have never heard of Easton. First of all, you have to take your child for a check-up to see if it is suitable and suitable for wearing before you can use it. Because it was too high, I went for an examination. Cousin 15 years old can use it when his myopia is over 300 degrees, and it has been used until now. The visual acuity can reach 1.0 and the effect is good. I suggest you take your child to have a check-up first to see if it can be used, and consult the director over there, which will be more detailed.