A New Intraocular Foreign Body (IOFB) Removal Technique: Polytetrafluoroethylene (PTFE / Teflon) Wrapping


14th EURETINA Annual Congress, Londradra, United Kingdom, 11 - 14 September 2014, pp.21

  • Publication Type: Conference Paper / Full Text
  • City: Londradra
  • Country: United Kingdom
  • Page Numbers: pp.21


Purpose (max 100 words):

To define and to investigate the efficacy and safety of a new surgical technique for removal of IOFBs by polytetrafluoroethylene (PTFE) wrapping.

Setting/Venue (max 50 words):

Clinical practice of interventional case series in Surp Pırgic Armenian Hospital of Istanbul Turkey

Methods (max 200 words):

6 cases of metallic IOFBs, 3 cases of shotgun/BBs and 3 cases of hammering injury, was removed by the surgical technique defined in the study. After a conventional core vitrectomy IOFB was reached and preferably before detachment of posterior hyaloid, a piece of sterilised PTFE sheath is inserted into the vitreous cavity by a forceps and by bimanual technique it is flattened on retinal surface covering posterior pole by injection of perfluorodecaline onto it. After releasing the IOFB from its attachments it is carried and put on flattened PTFE by bimanual technique carefully and wrapped by the PTFE sheath by folding 4 corners to the centre altogether grasped by a forceps safely and taken out the eye from sclerotomy. While taking out enlarging of sclerotomy was performed by a MVR blade if needed. Vitrectomy completed and silicone oil tamponade was performed in a regular way.

Results (max 200 words):

All IOFBs are removed safely and successfully in all cases. Without any drop or risk of drop of all IOFBs are removed. Because PTFE is a very extensible and expandable material after it covers the IOFB it is almost impossible to be released. In this new technique, while passing through the sclerotomy IOFB needs an opening fitting its smallest possible diameter. But in conventional methods sclerotomy needs to be large enough for passage of IOFB as well as grasping forceps together. In addition because it is wrapped by teflon while passing through the sclerotomy rough surface of a metallic IOFB does not carry an additional risk of secondary trauma to the sclerotomy site.

Conclusions (max 200 words):

IOFB removal by PTFE (teflon) wrapping technique is a new, easy and safe method of IOFB removal. On the other hand, depending upon our literature search, this is the first usage of PTFE material in ophthalmic surgery and it may give rise to some new dimensions of PTFE usage in ophthalmology area which is used in cardiovascular surgery for several years.


Vitreoretinal Surgery