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Related Experiment Videos

[Diplopia following local anesthesia].

J M van Ingen1

  • 1Afdeling Mond- en kaakchirurgie, Academisch Ziekenhuis, Nijmegen.

Nederlands Tijdschrift Voor Tandheelkunde
|April 1, 1995
PubMed
Summary
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Transient diplopia in dentistry, often from local anesthetic injection, can cause temporary lateral rectus muscle paralysis. This rare complication may result from intravascular anesthetic delivery to orbital vessels.

Area of Science:

  • Dentistry
  • Ophthalmology
  • Anesthesiology

Background:

  • Local anesthetics are commonly used in dental procedures.
  • Complications, though rare, can occur following anesthetic administration.
  • Understanding potential adverse effects is crucial for patient safety.

Observation:

  • A patient experienced diplopia (double vision) after a dental local anesthetic injection.
  • This was associated with a transient paralysis of the lateral rectus muscle.
  • The patient's symptoms resolved over time.

Findings:

  • The case suggests a link between local anesthetic administration and ocular muscle dysfunction.
  • Intravascular injection into the superior or inferior alveolar artery is proposed as the mechanism.

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  • Retrograde flow into orbital vascular supply likely caused the paralysis.

    • Implications:

    • This highlights the importance of careful injection techniques in dentistry to avoid intravascular administration.
    • Awareness of this rare complication can aid in prompt diagnosis and management.
    • Further research into anesthetic delivery and orbital effects is warranted.