Dr.Gitumoni Sharma, Dr.Deepshikha Agrawal
IOFB can present in a variable way.They are localised by a careful history,ocular examination, BScan, XRay,CTscan and MRI scan.The appropriate route for extraction depends on the size, composition and location of the IOFB, as well as presence of anterior chamber ocular damage.Anterior chamber foreign bodies are removed as is shown through a secondary limbal incision after the traumatic laceration has been repaired.If a foreign body is impacted in the scleral wound, it has to be removed before repair of the lacerated site.
Magnetic IOFB located both anterior to the equator and in the subretinal or intraretinal space can be removed through a T-shaped scleral and uveal incision with an external magnet.Intravitreal magnetic IOFB that are clearly visible and free of incarcerated tissue can be removed through a pars plana sclerostomywith an external magnet.I prefer to remove posterior segment IOFB by 3port standard Microincision vitrectomy.Pars plana extraction is smooth for IOFB 5mm.