Use of ultrasound biomicroscopy in the localisation and management of an anteriorly situated intraocular foreign body

Editor,—The precise imaging of anteriorly located intraocular foreign bodies (IOFBs) is difficult with present techniques—namely, computed tomography (CT) scanning, and A and B scan ultrasonography. In this case, ultrasound biomicroscopy (UBM) proves itself to be an excellent imaging technique for these IOFBs and therefore useful in clinical practice. ### CASE REPORT A 79 year old man presented to the eye casualty department complaining of a painful, red left eye with reduced vision. Two weeks previously he had been hit in that eye by the end of a nail which he had been pulling out of a table. He believed he had removed the piece of metal from his eye at the time. On examination, visual acuity (VA) was 6/9 in the right eye and 6/60 in the left eye. There was a nasal subconjunctival haemorrhage, though the entry wound was found at …