Ferrous intraocular foreign bodies retained in the posterior segment:management options and results*

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Analysis of traditional versus comprehensive management techniques for eyes with ferrous IOFBs in the posterior segment.

Patients and methods:

Retrospective review of 30 eyes undergoing IOFB removal by EM and of 34 eyes managed by PPV techniques.


Vitreous hemorrhage occurred commonly (EM group: 40%, PPV group: 50%). Only in the EM group did the intervention cause iatrogenic vitreous hemorrhage (23%) and has post extraction endophthalmitis developed (10%). Vision improved in 23% of eyes, deteriorated in 53%; >0.5 vision was achieved in 20%. Five EM eyes (17%) were anatomically lost; PVR developed in 48% of the remaining eyes. In the PPV group, no eye was anatomically lost and PVR developed in 12%. Vision improved in 68% of eyes, deteriorated in 15%; >0.5 vision was achieved in 68%. A single retinal impact site occurred in 71%, ≤2 impact sites in 21% of eyes.


Approximately one of two eyes with posterior segment IOFB develops vitreous hemorrhage, over two-thirds sustain at least one retinal lesion, and one-fifth of eyes suffer multiple retinal injuries. Both the anatomical (p = 0,003) and the functional (p = 0,005) prognoses are significantly better in eyes undergoing PPV compared to eyes with EM use. Timely PPV appears to markedly reduce the risk of endophthalmitis development. These results confirm the need to abandon the EM and perform PPV for eyes with posterior segment IOFBs.

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