Application of B-scan ultrasound in diagnosis of patients with ocular blunt trauma and hyphema

Objective To investigate the value of B-scan ultrasound in diagnosis of posterior segment of eyeball in patients with ocular blunt trauma and hyphema.Methods Seventy-five patients (78 eyes) with hyphema caused by ocular blunt trauma underwent B-scan.The B-scan echograms of vitreous cavity and fundus were observed,and the results were analyzed. Results The B-scan echograms:in 78 eyes,without obvious abnormality 10 eyes (12.82％); vitreous opacity 37 eyes (47.44％); macular edema 10 eyes (12.82％); vitreous hemorrhage 7 eyes (8.97％); posterior vitreous detachment 6 eyes (7.69％); retinal hemorrhage or choroid hemorrhage 5 eyes (6.41％); epiretinal hemorrhage in macular 2 eyes (2.56％); papilledema 2 eyes (2.56％); rupture of posterior sclera with peripheral retinal detachment and vitreous hemorrhage 1 eye (1.28％). Conclusions B-scan ultrasound plays an important role in detecting posterior segment of eyeball diseases,especially in the patients with hyphema caused by ocular blunt trauma.B-scan technology is helpful for early diagnosis and treatment of posterior segment of eyeball diseases. Key words: Ocular blunt trauma;  Hyphema;  B-scan ultrasound