What does the term "oxygen toxicity" refer to?

The term "oxygen toxicity" specifically refers to the harmful effects that can arise from excessive oxygen pressure on the body, particularly during diving activities. When divers breathe gas mixtures that contain elevated levels of oxygen, especially under increased pressures found at greater depths, it can lead to various physiological problems. Symptoms may include visual disturbances, tinnitus (ringing in the ears), dizziness, and in severe cases, can even result in convulsions, loss of consciousness, or more serious complications.

Understanding oxygen toxicity is crucial for divers as it underscores the importance of adhering to safe diving practices and using appropriate gas mixtures. Proper training and awareness help divers mitigate risks associated with high oxygen levels by monitoring their exposure and adhering to recommended limits based on depth and time. This knowledge is essential for ensuring safety when utilizing enriched air (Nitrox) and other gas mixtures in diving.