If it is necessary to consider both close-range and long-distance viewing, the degree can theoretically be adjusted downwards when wearing discountglasses, but it cannot be further lowered. The actual degree can be adjusted downwards, and the actual comfort level while wearing glasses should be taken as the standard. It cannot be adjusted arbitrarily.

In theory, if downregulated too much, the ciliary muscle will remain highly fatigued, and the eye axis will continue to lengthen, deepening myopia. If conditions permit, two pairs can be provided, one for close-range viewing and the other for long-distance viewing.

When the kid's eyeglasses are near me degree of myopia is stable, this is from the perspective of growth and development, without considering the factor of excessive eye use. However, eye fatigue can lead to an elongation of the eye axis, and myopia will continue to deepen. Even in adulthood, myopia will continue to deepen due to excessive eye fatigue. Therefore, whether myopia continues to deepen in adulthood depends on the existence of eye fatigue.

The degree of true myopia will not decrease again because the elongation of the eye axis is a physical change that is theoretically irreversible. The eye axis will not become shorter, so as age increases, myopia will not decrease again, but will only change towards a deeper direction. This can be used as an explanation for the downward adjustment of the degree of childrens eyeglasses.

If the degree of true myopia is too high (elongation of the eye axis), continuous relaxation of the ciliary muscle can shorten the eye axis, improve naked eye vision, and see objects clearly; In the end, we will find that the relationship between naked eye vision and true myopia degree is: naked eye vision=true myopia degree+ciliary muscle regulation ability.