My understanding of under correction and full correction is that optometry prescription and glasses prescription are different concepts, and the "full correction" and "under correction" of optometry prescription and children's eyeglasses prescription are different.

The prescription for optometry refers to obtaining the best visual acuity through optical correction, reflecting the refractive state of the eye - this is a unified method and operational process used in all optometry textbooks, and there is no dispute.

Mirror prescription refers to the comprehensive analysis of an individual's condition and the use of optical correction to obtain a prescription that meets the individual's needs and can be seen comfortably and persistently.

The prescription for optometry and kids' eyeglasses near me may not be the same. Therefore, when we define full correction and under correction, we also need to specify whether it is a prescription for optometry or glasses. My understanding of full correction and under correction in optometry prescription is that full correction in optometry prescription is the most correct and optimal vision; Under correction in optometry prescription: If the foot correction cannot be achieved, it is under correction. Under correction amount: the difference from the optometry foot correction prescription.

My understanding of foot correction and under correction in childrens glasses prescription is that foot correction in glasses prescription should be the most correct diopter when visual acuity is corrected to 1.0 (when visual acuity cannot be corrected to 1.0, the best visual acuity is taken).

Different research backgrounds and reference frames are different, and their conclusions are not directly applicable. It depends on the conditions. For example, different ages, definitions of myopia, research methods, races, and even seasons can all affect research conclusions.