Título / Title

MAGNET-ASSOCIATED PARS PLANA VITRECTOMY FOR METALLIC FOREIGN BODY REMOVAL

Introdução / Purpose

To describe the long-term outcome of patients with magnetic intraocular foreign bodies (MIFB) undergoing magnet-assisted pars plana vitrectomy (MAPPV).

Material e Método / Methods

We evaluated 26 patients who underwent MAPPV for MIFB removal. The surgery consisted of standard three port pars plana vitrectomy and MIFB removal with an external electromagnet positioned in one of the superior sclerotomies. Comprehensive ophthalmologic evaluation was performed preoperatively and at weeks 4, 12±1, 24±2 and 48±2.

Resultados / Results

The MIFB was successfully removed in all patients. Median logarithm of the minimum angle of resolution best-corrected visual acuity was 1.0 at week 48. The median greatest linear dimension of the MIFB was 3.0mm. Eighteen patients had an attached retina at the final visit. Retinal detachment was the most common complication, endophthalmitis occurred in one case and one eye progressed to phthisis bulbi. Three of the 5 patients who had visual acuity of more than 20/40 at presentation maintained this level, 1 showed reduced acuity of 20/200, and 1 maintained acuity between 20/200 and 20/40. Four of 7 patients with an initial visual acuity of 20/200 to 20/40 showed improved acuity to more than 20/40 and 3 showed worsening to less than 20/200. Ten of the 14 patients with a preoperative visual acuity of less than 20/200 maintained this level, 2 showed improvement between 20/200 and 20/40, and 2 obtained a final visual acuity of more than 20/40. At the end of the 48 weeks of the study, 18 patients (69.2%) had an attached retina, five patients (19.2%) had retinal detachment, one patient had endophthalmitis, one progressed to phthisis bulbi, and one developed corneal opacity and glaucoma (Table 6).

Discussão e Conclusões / Conclusion

Magnet-associated pars plana vitrectomy seems to be a good surgical alternative for MIFB removal, although factors associated with the characteristics of ocular trauma continue to be important for the determination of the visual prognosis.

Palavras Chave

Occupational eye disease; Retina Remove; Ocular trauma; vitrectomy

Area

SURGICAL RETINA

Institutions

USP - Ribeirao Preto - São Paulo - Brasil

Authors

ENZO MEDEIROS FULCO, MARIA LETICIA PACCOLA, JEFFERSON RIBEIRO, RAFAELLA LOPES RODRIGUES, RODRIGO JORGE