PURPOSE:To evaluate the B sean ultrasonic examination in diagnosis and prognosis of infectious endophthalmitis in children. METHODS:The hospital records of 44 children with infectious endophthalmitis were retrospectively analysed. The correlation between the initial B scan eehographic findings and the initial vision and the vision at discharge were analysed by t-test. RESULTS :The average visual, acuity was hand moving on admission,and 0.04 at discharge. Both the final vision and the initial vision were associated with the severity of vitreous opacity. The ultrasonic findings including retinal detachment and choroidal detachment were associated with poor vision outcomes. CONCLUSION :The ocular B scan ultrasonic examination was effective to predict the final vision in infectious endophthalmitis in children. （Chin J Ocul Fundus Dis,1997,13: 134-135）