A child’s vision of 4.9 needs to be corrected depending on the stage of development and the specific type of refractive error, etc. A certain amount of nearsightedness needs to be corrected.
Children with 4.9 visual acuity may not have reached the stage of full visual development, generally most of the six or seven years of age visual acuity to develop to the normal 5.0 and above, so before the existence of visual acuity of 4.9 situation if the normal development stage, to exclude the obvious farsightedness, astigmatism, and more than one hundred degrees of nearsightedness, and then can be temporarily to be observed to follow up the treatment.
However, if there are obvious hyperopia and myopia of more than 100 degrees, timely and effective corrective lenses and visual acuity training are needed, and follow-up observation is also very important.
It is recommended that children should be screened regularly at the appropriate stage, so that complicated conditions such as delayed development of vision and amblyopia can be detected in time, and targeted correction and training can be provided.