What is the term for the condition caused by breathing high levels of oxygen under pressure?

The condition caused by breathing high levels of oxygen under pressure is known as oxygen toxicity. This occurs when the partial pressure of oxygen in the breathing mixture exceeds safe levels, leading to harmful physiological effects. The higher the pressure and the more oxygen present in the breathing gas, the greater the risk of oxygen toxicity. Symptoms can include visual disturbances, respiratory problems, muscle twitching, and even convulsions.

This understanding is crucial for divers, especially when using enriched air nitrox or other gas mixtures at deeper depths, where the increased pressure can significantly elevate the partial pressure of oxygen. Knowledge of this term helps divers to manage their exposure to high oxygen levels, ensuring they can enjoy their dives while minimizing risks.