Abstract: Objective To study the stability duration of visual acuity after eye injuries in several types,in order to define the earliest and best opportunity for identification.Methods160cases were divided into five groups,in which their stable visual acuity after injuries were divided into several ranges.Then the relationship between stability duration of visual acuity and their visual acuity level,as well as eye injury types were analyzed.Results Significant correlation existed between eye injury types,stable visual acuity level and stability duration of visual acuity after injuries.Conclusion The earliest and best opportunity for identification after eyes injuries related to injury types and visual acuity level.

Key words: eye injury, visual acuity, identification opportunity