What is oxygen toxicity?

Oxygen toxicity refers to a life-threatening condition that occurs when there is an excessive delivery of oxygen to the body tissues. This situation typically arises when individuals breathe oxygen concentrations higher than what is naturally found in the atmosphere, especially under increased pressures, such as during deep-sea diving or therapeutic oxygen treatments.

When oxygen levels become excessively high, it can lead to oxidative stress, which damages cells and tissues. The central nervous system is particularly sensitive, and symptoms may include visual disturbances, seizures, and respiratory complications.

Understanding this condition emphasizes the importance of monitoring and managing oxygen levels in environments where high partial pressures of oxygen are present, such as during deep dives or in hyperbaric chambers.