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Recent Posts by Barbara Shykoff
February 28, 2018
What’s All the Fuss about CO2 in Breathing Gas?
The acceptable level of inspired carbon dioxide (CO2) in diving gear is a controversial topic. Some current standards1,2 permit up to 20 mBar (2 kPa, 2% SEV) as the average inspired CO2 partial pressure, while […]
October 19, 2017
Hyperoxic Myopia: Information for Divers
Exposure to excessive oxygen can impair distance vision.
This phenomenon, called hyperoxic myopia, is a form of oxygen toxicity that affects the lenses of the eyes.1,2 It is a known risk of hyperbaric oxygen treatment […]
May 29, 2017
Why UPTD Calculations Should Not Be Used
Just over 45 years ago, in 1970, researchers at the University of Pennsylvania used the best information available at the time to derive a model for development of pulmonary oxygen toxicity.1,2 The measurement they used […]
March 27, 2017
Oxygen Seizures at PO2 ≤ 1.6 Bar: How Rare?
Central nervous system (CNS) oxygen toxicity literally means the poisoning of the brain by too much oxygen. CNS oxygen toxicity is very scary, particularly in the water, where any of the signs or symptoms poses […]
