Identification of wooden intraorbital foreign bodies (WIOFB) is crucial for avoiding severe orbital infection. Despite careful clinical examination, WIOFB are often not recognised. We report the CT findings in chronically retained WIOFB. When not initially diagnosed, WIOFB create a granulomatous inflammatory foreign-body reaction. CT demonstrates the WIOFB as a linear dense structure surrounded by a soft-tissue mass with density similar to that of muscle, corresponding to the foreign-body reaction.

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Over the last 20 years eyeball replacement surgery has improved, especially with the widely accepted use of biocolonisable implants. These implants allow long-lasting biointegration, thus improving prosthesis motility and reducing the rate of postoperative exposure. In this article, we review the chemical structure, toxicity data and manufacturing procedures of the three main commercially available materials: aluminium, hydroxyapatite and porous polyethylene.