Whether or not a 5 year old child with a visual acuity of 0.6 is myopic is also determined by the type of lenses needed for correction during the eye exam, if concave lenses are needed, then they may be myopic. The visual acuity of a 5-year-old child with dilated pupils can reach 0.6, which is lower than normal. Children of this age can reach a visual acuity of 0.8 or more, and if they need to wear concave lenses after the dilated pupil examination, they may be myopic. There are also cases where children of this age are in a critical stage of vision development, and may be behind in vision development due to strabismus, refractive error, etc. Even with lens correction, vision cannot be improved well. Children at this stage have a reserve of hyperopia, which may manifest as farsightedness. Children at the age of 5 with visual acuity of 0.6 should go to the hospital in time to complete the auxiliary examinations such as dilated optometry to determine the cause of backwardness of children’s visual acuity, and then follow the doctor’s instructions to carry out training and treatment in time, as well as regular review.