Perforating ocular injuries caused by anesthesia personnel

Area of Science:

• Ophthalmology
• Anesthesiology
• Medical Safety

Background:

• Perforating ocular injuries are serious complications associated with anesthetic injections around the eye.
• These injuries have been reported following injections administered by non-ophthalmologists, including anesthesiologists and nurse anesthetists.

Purpose of the Study:

• To analyze the outcomes of perforating ocular injuries resulting from anesthetic injections.
• To evaluate the impact of needle type (sharp vs. blunt) and injury characteristics on visual acuity.
• To emphasize the importance of proper training for anesthesia personnel performing ocular injections.

Main Methods:

• Retrospective review of 12 cases of perforating ocular injuries caused by anesthetic injections between February 1988 and May 1990.
• Categorization of injuries based on needle type (sharp or blunt), number of perforations, and management strategies.
• Assessment of final visual acuity in relation to injury characteristics and treatment.

Main Results:

• Sharp needle, single perforations (5 cases) resulted in good visual acuity (≥20/40) with conservative management or procedures like cryopexy and laser.
• Blunt needle, single perforations (5 cases) led to poorer outcomes, with three eyes having visual acuity of counting fingers or worse, necessitating vitrectomies.
• Multiple posterior exit wounds (2 cases) resulted in severe vision loss (20/400 and light perception) and required multiple surgical procedures.

Conclusions:

• The use of blunt needles does not eliminate the risk of ocular penetration during anesthetic injections.
• Anesthesia personnel require specialized training to minimize the risk of ocular injury.
• Prompt and appropriate management is crucial, but outcomes are significantly influenced by the nature and severity of the injury.