Vision changes of teenager aviation school students six months after admission

LI Peijing; ZOU Zhikang; GONG Yuwen

Abstract：ObjectiveTo make a comparative analysis of vision changes of teenager aviation school students six months after admission, and to investigate the effectiveness and feasibility of the current training program on the visual acuity of the trainees so as to provide a scientific basis for updating the training programs.MethodsThe vision of 222 students from three teenager aviation schools was checked when selected and halfway through the school year. The overall changes were evaluated based on the worse distance visual acuity Vision changes of students from different schools were compared. All the students were required to fill in questionnaires about influencing factors of vision that were processed using Logistic regression analysis.ResultsThe vision level of students was stableor improving (P<0.05) in the six months after admission. Students whose visual acuity remained stable accounted for 42.34%, and 46.85% of the participants had better vision. The pencentage of students with decreased vision was 10.81%, and 1.35% of the students were disqualified because of poor vision. Substandard students were mostly from school C while the vision level of cadets at the other two schools was relatively stable. The length of time spent on learning and outdoor exercise had the most significant effect on the visual acuity of students.ConclusionThe current training program for the visual acuity of trainees is effective and feasible. It is necessary to ensure rational allocation of time between study and physical exercise outdoors.