Abstract
Background
The Toxocara organism may cause direct injury to the eye, but most commonly, host inflammatory reactions are responsible for the resulting compromise. The inflammatory response created by the ocular involvement may result in epiretinal membrane formation, tractional or combined tractional-rhegmatogenous retinal detachment. The treatment of choice is pars plana vitrectomy (PPV), which also has diagnostic significance.
Methods
We report a pediatric case in which PPV recovered the Toxocara canis organism. For the total tractional retinal detachment diagnosed after the cataract surgery, PPV, preretinal and subretinal membrane peeling, 180° retinotomy, silicone oil injection were performed. The fibrous membrane specimen obtained during PPV recovered the Toxocara canis organism.
Results
The intense postoperative inflammatory reaction had to be managed surgically, also. Retinal reattachment was achieved with subsequent improvement of the visual acuity.
Conclusion
The importance of vitreous biopsy examination following PPV, in eyes in which etiology is uncertain and the intense antiinflammatory therapy applied within and following vitreoretinal surgery is emphasized.
References
Amin HI, McDonald HR, Han DP, Jaffe GJ, Johnson MW, Lewis H, Lopez PF, Mieler WF, Neuwirth J, Sternberg P Jr, Werner JC, Ai E, Johnson RN (2000) Vitrectomy update for macular traction in ocular toxocariasis. Retina 20(1):80–85
Maguire AM, Green WR, Michels RG, Erozan YS (1990) Recovery of intraocular Toxocara canis by pars plana vitrectomy. Ophthalmology 97(5):675–680
Meyer-Riemann W, Petersen J, Vogel M (1999) An attempt to extract an intraretinal nematode located in the papillomacular bundle. Klin Monatsbl Augenheilkd 214(2):116–119
Gonvers M, Mermoud A, Uffer S, Herbort C, Bovey E (1992) Ocular Toxocara canis in a 30-year-old adult. Klin Monatsbl Augenheilkd 200(5):522–524
de Souza EC, Nakashima Y (1995) Diffuse unilateral subacute neuroretinitis. Report of transvitreal surgical removal of a subretinal nematode. Ophthalmology 102(8):1183–1186
Werner JC, Ross RD, Green WR, Watts JC (1999) Pars plana vitrectomy and subretinal surgery for ocular toxocariasis. Arch Ophthalmol 117(4):532–534
Beiran I, Cochavi O, Miller B (1998) “Silent” ocular toxocariasis. Eur J Ophthalmol 8(3):195–196
Oppenheim S, Rogell G, Peyser R (1985) Diffuse unilateral subacute neuroretinitis. Ann Ophthalmol 17(6):336–338
Pollard ZF, Jarrett WH, Hagler WS, Allain DS, Schantz PM (1979) ELISA for diagnosis of ocular toxocariasis. Ophthalmology 86:743–749
Small KW, McCuen II BW, de Juan E Jr, Machemer R (1989) Surgical management of retinal traction caused by toxocariasis. Am J Ophthalmol 108(1):10–14
Author information
Authors and Affiliations
Corresponding author
Additional information
None of the authors has any financial or proprietary interest in this study. The authors have full control of all primary data and they are to allow Graefe’s Archive for Clinical and Experimental Ophthalmology to review their data upon request.
Rights and permissions
About this article
Cite this article
Acar, N., Kapran, Z., Utine, C.A. et al. Pars plana vitrectomy revealed Toxocara canis organism. Int Ophthalmol 27, 277–280 (2007). https://doi.org/10.1007/s10792-007-9078-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10792-007-9078-1