Utility of a nitinol stone extractor for intraocular foreign body removal

Ye Huang, Farid Khan, Mark Chang, Christopher D. Conrady, Steven Yeh

Research output: Contribution to journalArticlepeer-review


Purpose: To describe the novel application of a urological instrument, the nitinol stone basket, in the removal of a retained intraocular foreign body (IOFB). Observations: This is a retrospective case series describing two eyes of two patients presenting with metallic IOFBs after hammering metal-on-metal. Both patients underwent 23-gauge pars plana vitrectomy (PPV) and successful IOFB extraction using the NCircle® Nitinol Tipless Stone Extractor. There were no intraoperative or post-surgical complications. Both patients demonstrated improvement in vision, with most recent postoperative visual acuities of 20/40 and 20/60. Conclusions and importance: The nitinol stone basket may be considered for removal of IOFBs, particularly larger IOFBs that are difficult to grasp with forceps. Our cases add to the literature showing favorable visual outcomes and few complications in the post-operative period using this technique.

Original languageEnglish (US)
Article number101917
JournalAmerican Journal of Ophthalmology Case Reports
StatePublished - Dec 2023


  • Intraocular foreign body
  • NCircle stone extractor
  • Nitinol
  • Stone basket
  • Trauma
  • Vitrectomy

ASJC Scopus subject areas

  • Ophthalmology


Dive into the research topics of 'Utility of a nitinol stone extractor for intraocular foreign body removal'. Together they form a unique fingerprint.

Cite this