Diagnostic Value of B-type Ultrasound for intraocular foreign bodies and missed diagnosis in 126 inpatient cases

Abstract

Objective To evaluate the roles of diagnosing intraocular foreign bodies (IOFB) and missed diagnosis with B-type ultrasound. Methods Retrospective study of 126 clinic inpatient cases. Results The rate of metallic foreign body(MFB) was 74.6%, the rate of intraocular foreign body was 81.8 %, the rate of intraorbital foreign body was 7.1%; The missed diagnosis rate of B-type ultrasound for intraocular foreign bodies was 1.6%, the discovering rates were decreased for anterior segment and retrobulbar intraocular foreign bodies,and the showing rate was high to the vitreous opacity and retinal detachment caused by intraocular foreign bodies. Conclusion Type ultrasound can provide the required information on diagnosis and surgery design of IOFB. Small intraocular metal foreign bodies are easily misdiagnosed and missed diagnosed. Routine examination including B-type ultrasound for patients who had symptoms of intraocular foreign bodies, can obviously reduce the misdiagnosis and missed diagnosis. Key words: Intraocular foreign bodies(IOFB); B-type ultrasound; Analysis; Missed diagnosis