What Researchers Did
Researchers documented the case of a 58-year-old man who experienced vision changes, specifically a hypermetropic shift succeeding a myopic shift, during and after hyperbaric oxygen therapy.
What They Found
They found that after each of two HBO series, the patient's vision shifted first to myopia then to hypermetropia. The maximal refractive amplitude was 3.00 D in the right eye and 2.75 D in the left eye, with refraction stabilizing at +0.62 D and +0.50 D after 1.5 years.
What This Means for Canadian Patients
Canadian patients undergoing hyperbaric oxygen therapy should be aware of potential temporary refractive changes, including both myopic and hypermetropic shifts. Regular eye examinations during and after treatment could help monitor and manage these vision alterations.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
A significant limitation is that this study is a single case report, which limits the generalizability of its findings to a broader patient population.