Objective To investigate the low vision status of middle school students in Kaifu District of Changsha,and to provide the evidence for preventive measures against low vision. Methods The data of eyesight examinations of 3,463 middle school students from two schools in Kaifu District from 2007 to 2009 were randomly selected and statistically analyzed. Results The rate of poor eyesight in the male students was 36.5%(the mild, the moderate and the severe were 16.89%,11.09% and 8.52%,respectively).The rate of p...