6-year-old children’s standard vision is usually above 1.0. If a child’s vision is found to be below this level, especially significantly low, a more thorough examination should be conducted promptly. This may be due to myopia, hyperopia, or other eye problems leading to vision decline, and as age increases, the rate of vision decline may accelerate. When conducting a far-sightedness examination, China commonly uses international standard vision charts or the logMAR visual acuity chart. The examinee needs to be 5 meters away from the vision chart, recognizing the visual acuity direction from top to bottom, starting with the right eye and then the left eye. The normal visual acuity standard is 1.0 or 5.0. If the visual acuity is below 0.1, the specific visual acuity value can be calculated by gradually approaching the vision chart. The critical period for eye development is before the age of 3, and the sensitive period continues until age 9. During this period, protecting vision and timely treatment are crucial. Some eye diseases, such as amblyopia, are difficult for parents to detect on their own, so it is recommended to start regular professional eye examinations from birth, especially for premature infants and babies who received oxygen therapy at birth. Currently, methods and equipment for vision examinations for children under 3 years old are widespread. Around the age of 1, even if no vision problems are detected, it is advisable to have the first vision check, especially for families where both parents are highly myopic. After the age of 3, it is wise to comprehensively understand the child’s eye health through cycloplegic refraction. Newborns already react to light, but their vision is only about 1/30 of adult levels, with a field of view of about 45 degrees and limited pursuit range. They prefer complex shapes, curves, and colors with high contrast. At this stage, the focus is on early detection of congenital abnormalities, observing the appearance, position, movement, and color of the eyes, and preventing eye diseases caused by birth canal infections. Simple home checks can include shining a flashlight, where newborns normally blink; gently lifting the eyelids to observe the pupil’s response by narrowing; observing coordination movements between the head and eyeballs, such as eyes looking up when lowering the head, and eyes looking down when looking up; and using a large red fuzzy ball to slowly move in front of the child’s eyes, where a normal response would be the child attempting to follow the movement, reflecting head-eye coordination ability.
Normal range of vision for 6-year-old children
