Which condition results from excessive oxygen exposure?

Oxygen toxicity occurs when a diver is exposed to high partial pressures of oxygen, typically at depths greater than what is safe during diving operations. This condition can cause various physiological reactions, particularly affecting the central nervous system and the lungs. Symptoms of oxygen toxicity may include visual disturbances, ringing in the ears, nausea, twitching, and convulsions. If the exposure continues or worsens, it can lead to more severe complications, including seizures, which can be particularly dangerous underwater.

Understanding oxygen toxicity is crucial for divers, especially when utilizing enriched air nitrox or diving at depths that raise the risk of elevated oxygen levels. Maintaining awareness of the safe limits for oxygen exposure helps prevent this potentially life-threatening condition. This knowledge is vital for safe diving practices and ensuring the well-being of divers during their underwater activities.