What is a common symptom of oxygen toxicity?

Visual disturbances and seizures are indeed common symptoms of oxygen toxicity, particularly at elevated partial pressures of oxygen encountered in diving environments. Oxygen toxicity results from excess oxygen in the body, which can affect the central nervous system and lead to neurological symptoms.

Visual disturbances can manifest as changes in vision, such as tunnel vision or seeing spots, and are often an early warning sign that oxygen levels are too high. Seizures can occur subsequently as the nervous system becomes increasingly affected by the toxic effects of elevated oxygen levels. In diving, particularly when using oxygen-rich mixtures like Nitrox, it's crucial to monitor for these symptoms to prevent serious complications.

Understanding these symptoms reinforces the importance of proper gas management and the safe use of mixes to avoid oxygen toxicity while diving.