Abstract:AIM:To understand the refractive status of teenagers and children with abnormal visual acuity aged 3-15 in Beihai.METHODS:The 3-15 years old teenagers and children generally surveyed amounted to 19032 ones,including 10503 boys,accounting for 55.2% of the total number,8529 girls,accounting for 44.8% of the total number.RESULTS:Students whose naked vision was over 1.0,contained 6650 boys,63.3% of the total number of boys,and 4575 girls,53.6% of the total number of girls.Those who had poor eyesight included 3,853 boys,36.7% of the total number of boys,and 3,954 girls,46.4% of the total number of girls.The incidence of abnormal visual acuity:young children group<primary school group<junior middle school group.The incidence of abnormal visual acuity between groups:generally girls>boys,and the incidence of abnormal visual acuity often revealed an increasing tendency with age.There was a significant growth from primary school to junior middle school.The refractive status of abnormal visual acuity:hypermetropia was seen more often among 3-6 years old children,then myopia became major from the age of 7.The incidence of mild myopia reduced year by year from the age of 10,but that of middle and severe myopia increased year by year.Abnormal visual acuity of kid-group was mainly resulted by hyperopia,which of primary and junior middle school group were mainly resulted by myopia,and the incidence of myopia in the group of junior middle school was higher than primary school.Refractive type of amblyopia was primarily hyperopia astigmatism.CONCLUSION:General survey of visual acuity to the children in the period of growth was an important way to find out and prevent ametropia.Screening the refractive status,remedying ametropia,the early proper treatment and correct scientific guidance were all effective methods to prevent and delay the disease development.They were also ways of preventing and curing amblyopia.We ought to adopt positive and effective comprehensive measures of prevention and treatment to the 3-15 years old students with abnormal visual acuity.
