What Researchers Did
Researchers measured the eye pressure of healthy military divers during simulated dives in a hyperbaric chamber to understand how it changed with different atmospheric pressures.
What They Found
The study involved 48 eyes from 24 divers, mostly male (91.7%) with an average age of 30.6 years. The mean base intraocular pressure at sea level was 14 mmHg, which decreased to 13.1 mmHg at 60 feet deep (2.8 absolute atmosphere pressure) during 60-minute sessions. During the safety stop at 30 feet, the mean eye pressure decreased further to 11.9 mmHg, and by the end of the session, it was 13.1 mmHg, which was significantly lower than the starting pressure.
What This Means for Canadian Patients
This study suggests that the pressure changes experienced during hyperbaric oxygen therapy (HBOT) can temporarily lower intraocular pressure in healthy individuals. While not directly about treating eye conditions, this information contributes to understanding the physiological effects of pressure on the eye. This insight could be relevant for Canadian patients undergoing HBOT for other approved conditions, providing a clearer picture of potential ocular responses.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The study involved a specific group of healthy military divers in a simulated environment, which may not represent all individuals or real-world hyperbaric oxygen therapy scenarios.