Abstract: whether children’s vision is normal mainly depends on the data of ocular axis. The length of ocular axis of normal adults should be 24mm, and the average length of ocular axis at birth is about 17.3mm. With the development of the body, the eyeball is also developing continuously, and the ocular axis gradually grows until it is normal.
the parents of a 3-year-old boy complained to us: “they played the iPad for him at the age of one. As soon as they gave it to him, they were quiet, quiet and quiet. Playing small games can not eat or drink all day, but can only show him a glance and eat a mouthful of rice”. As a result, when I was 3 years old, I always rubbed my eyes to check that it was dry eye.
in recent years, with the development of science and technology, smart phones, tablet computers and other electronic products continue to enter people’s lives. IPads and mobile phones have become the first “artifact” for parents to coax their children. The child kept crying and stuffed the iPad into him; If the child doesn’t eat, he coaxes him with his mobile phone; If you are busy with housework or overtime at home and have no time to take care of your children, give your children the iPad to play quietly; This unconsciously placed an invisible “killer” for children’s vision. Most electronic digital product screens such as
iPads and mobile phones use LED backlight, which makes the screen brightness higher. The adverse stimulation of long-term close-up vision can cause the growth of children’s ocular axis and induce myopia.
in addition, children’s long-term use of mobile phones and iPads may also cause dry eyes. Blinking is a normal physiological process of human body and plays a role in moisturizing the eyes. Normal people blink 20-25 times per minute. If they face the electronic screen for a long time, their attention is highly focused, and the number of blinks decreases to 5 times per minute, resulting in excessive evaporation of tears and uneven distribution of tear film, which is easy to cause dry eye.
whether children’s vision is normal mainly depends on the data of ocular axis. The length of ocular axis of normal adults should be 24mm, and the average length of ocular axis at birth is about 17.3mm. With the development of the body, the eyeball is also developing continuously, and the ocular axis gradually grows until it is normal. If the ocular axis grows too fast, it will become myopia. For example, children aged 4-5 should have a hyperopia reserve value of 200-250 degrees. If the child’s hyperopia reserve value is very low or even not, it means that the child is likely to become myopia when he is a little older.
parents should supervise their children’s eye habits.
0-6 years old is the key period of children’s visual development. Visual problems are found during this period, and the probability of recovery is greater. Therefore, Sinovel suggests that children should have a comprehensive optometric examination once a year from the age of 3 and establish a refractive custody file. The refractive trusteeship file is to make a refractive development assessment for the child’s eyes to see if the child has myopia, hyperopia and astigmatism. For example, if a 3-year-old child goes to Sinovel optometry for visual acuity examination, we will establish a trusteeship file for the child and recheck it again. Parents can find the child’s visual acuity development trend from the examination data and take preventive measures as soon as possible under our guidance.