Analysis of the status and influence factors of vision development in preschool children

Abstract

AIM:To investigate the visual acuity, refraction and influence factors of preschool children in some nurseries in Nanjing. METHODS: Children from 4 to 6 years old in Nanjing attended the visual acuity examination, and filled in factors questionnaire. The results were analyzed.RESULTS:Visual acuity at P5 was 0.4 of 4 years, 0.5 of 5 years, and 0.6 of 6 years. Refraction, gestational age, birth weight, closely using eyes, daily watching television time, daily outdoor activity time, picky eaters situation, chewing situation, parents diopter, home lighting status were associated with vision disorders. Factors score at P5 is 5.CONCLUSION: The visual acuity less than P5 at each ages was abnormal vision. Child whose factors score of less than 5 had high risk of abnormal vision, and need to pay close attention to visual conditions.

Keywords

• visual acuity
• growth
• epidemiology
• children