What Researchers Did
Researchers measured visual acuity and refractive error in eight patients undergoing hyperbaric oxygen therapy (HBOT), also assessing lens changes and oxidative stress markers, and testing antioxidant supplements.
What They Found
No significant changes in acuity or refractive error were observed after single hyperbaric oxygen therapy (HBOT) sessions. However, two of the eight subjects experienced significant increases in myopia over the 20-session course of HBOT. No corresponding changes were found in ultrasound, corneal curvature, or blood analysis data.
What This Means for Canadian Patients
Canadian patients undergoing hyperbaric oxygen therapy (HBOT) should be aware of the potential for developing or worsening myopia. Regular eye examinations are advisable during and after HBOT to monitor for significant vision changes.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
The study was limited by a small sample size and the inability of biochemical assays to predict myopia susceptibility or demonstrate oxidative damage.