At six years of age, 4.9 in the right eye and 4.8 in the left eye does not determine the amount of myopia, and further optometry is needed to determine the child’s refractive error.
For most children, the size of vision in both eyes improves with age. In general, the normal visual acuity in both eyes for children six years of age and older is approximately 5.0 or greater. A finding of 4.9 in the right eye and 4.8 in the left eye on examination of a six year old child indicates that the child is experiencing a loss of vision, but it is not possible to infer the refractive error from the visual acuity of the child.
If the child wants to determine the refractive error of the eyes, the child can be examined by optometry to clarify the presence of nearsightedness, farsightedness and the exact degree of nearsightedness. In addition to refractive errors, cataracts and glaucoma can also cause vision loss.
It is recommended that children with vision loss seek medical attention to evaluate their condition and follow the doctor’s instructions for treatment.