Objective To investigate the eyesight of students and its influences of certain college in Yunnan Province.Methods In Yunnan Province a total of 13 667 college students were studied to research their eyesight

and Binary Logistic analysis was applied to analyze factors causing poor eyesight.Results In this research the eyesight of 10 935 students（80%）were poor.And the relevance ratio showed significant differences on 4 aspects of gender

age

nationality and body mass（P<0.05）.The results of Binary Logistic analysis revealed that age

gender

nationality and body mass had influence on the students′eyesight.Conclusion developing rational living style and good habits of using eyes

and properly increase body mass could prevent poor eyesight.