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Related Experiment Video

Updated: Jun 16, 2026

Intravitreal Injections in the Ovine Eye
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Intravitreal Injections in the Ovine Eye

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Toxic vitreitis outbreak after intravitreal injection.

Thomas Ness1, Niklas Feltgen, Hansjuergen Agostini

  • 1University Hospital Freiburg, Eye Hospital, Freiburg, Germany. thomas.ness@uniklinik-freiburg.de

Retina (Philadelphia, Pa.)
|February 23, 2010
PubMed
Summary
This summary is machine-generated.

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Severe intraocular inflammation, including toxic vitreitis, can occur after intravitreal injections. A specific syringe brand was identified as the likely cause, and changing brands prevented further cases.

Area of Science:

  • Ophthalmology
  • Clinical Medicine

Background:

  • Intravitreal injections are common treatments for various eye conditions.
  • Severe intraocular inflammation is a potential complication, necessitating investigation into its causes.

Observation:

  • A retrospective case series analyzed 11 patients experiencing severe intraocular inflammation post-intravitreal injection.
  • The majority of cases (10/11) presented as toxic vitreitis, with one case of infectious endophthalmitis.

Findings:

  • Toxic vitreitis typically manifested within 48 hours, while infectious endophthalmitis occurred after 72 hours.
  • A specific syringe brand was implicated in the toxic reactions.
  • Switching to a different syringe brand resolved the issue, with no further cases in the subsequent six months.

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Implications:

  • Toxic inflammatory reactions are a significant risk following intravitreal injections, not just cataract surgery.
  • Careful review of materials and processes, including syringe selection, is crucial for preventing post-injection inflammation.
  • This highlights the importance of material vigilance in ophthalmic procedures.