First, the online live question and answer time
September 30, 202219: 00-20: 30
Second, the live broadcast platform
Video number of Heilongjiang Provincial Education Department
Third, experts:
Yao, Zhang
Extended reading:
People's vision development is not born with 5.0 vision in adulthood, but gradually develops with the development of the central nervous system. Therefore, children's eyesight is somewhat normal, and different age standards are different.
Generally speaking, the naked eye distance vision of children over 6 years old should be above 5.0 as normal; 12 years old should be in physiological hyperopia. It is worth noting that there is no absolute conversion relationship between naked eye farsightedness and diopter. Some children are nearsighted at 50 degrees and their eyesight can reach 5.0. Therefore, to judge whether a child's vision is normal, we should not rely solely on "naked eye hyperopia", but need to comprehensively consider and evaluate a number of indicators.