AIM:To investigate the common ocular diseases in school children age of 6 to 14 years old in Cangzhou, Hebei, China and find the relative risk factors.

METHODS:From March 2011 to October 2012, 20 schools including 1 and 6 grade school children were randomly selected as survey venues by Cangzhou Eye Hosipital. Then, 3 150 people as the selected residents were enrolled, which was figured out through the random cluster sampling procedure. Every participant completed questionnaire, and a series of examination. SPSS 16.0 was used for statistical analysis.

RESULTS:Totally 3 150 residents finally took part in this study.(1)There were 2672 eyes suffered lower vision <0.9, and the rate was 42.42%. The prevalence rate of dry eye was 27.24%; The prevalence rate of eye lids margin and conjunctivitis was 22.59%; The prevalence rate of strabismus was 6.00%.(2)The prevalence rate of congenital cataract was 0.13%, The prevalence rate of congenital ptosis was 1.90%, The prevalence rate of Under the eyelid trichiasis was 1.41%; The prevalence rate of congenital inspects tit was 0.0635%。

CONCLUSION:The rate of low vision in school children is higher, among these the rate of myopia is the highest. All these result suggested: Family and community should pay sufficient attention to conduct children's eye health and prepare a balanced behaviour, to prevent the occurrence of ophthalmopathy.