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Intra-ocular pressure changes during halothane and enflurance anaesthesia
British Journal of Anaesthesia
|April 1, 1978
Summary
This study compared anesthetic effects on intra-ocular pressure (IOP). Enflurane consistently reduced IOP, unlike halothane, making it a recommended alternative for eye surgery.
Area of Science:
- Ophthalmology
- Anesthesiology
Background:
- Intra-ocular pressure (IOP) management is critical during ocular surgery.
- Anesthetic agents can significantly influence IOP, posing risks in open-eye procedures.
Purpose of the Study:
- To evaluate and compare the effects of halothane and enflurane on intra-ocular pressure in patients undergoing eye trauma repair.
Main Methods:
- Intra-ocular pressure was measured in 20 patients under anesthesia with either halothane or enflurane (0.6 MAC in oxygen).
- Specific concentrations of 0.5% halothane and 1% enflurane were administered.
Main Results:
- Halothane (0.5%) caused unpredictable changes in intra-ocular pressure.
- Enflurane (1%) demonstrated a consistent reduction in intra-ocular tension across all studied patients.
Conclusions:
- Enflurane appears to be a more predictable anesthetic agent for managing intra-ocular pressure during eye surgery.
- Enflurane is recommended as a potential alternative anesthetic for open-eye surgical procedures.