Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc
Myopic Shift in Patients During Hyperbaric Oxygen Treatment: A Systematic Review
By Evanger K, Vaagbø G, Haugen OH and 1 others.
Abstract
Introduction
CReversible myopic shift (MS) is a common side effect of hyperbaric oxygen treatment (HBO₂) resulting from refractive changes in the lens. Single studies indicate that the myopic shift increases with longer duration of HBO₂ and may differ between hyperbaric chamber types and oxygen breathing systems. This review aims to improve knowledge on the frequency and magnitude of myopic shift after standard-length HBO₂.
Methods
A systematic search for original studies of myopic shift after HBO₂ was conducted in medical databases. Included were published full-text articles in English with specified details on oxygen administration, pressure, number of treatments, and use of conventional techniques to measure refraction. Studies with exposure other than HBO₂, patients with artificial lenses, and single-case reports were excluded.