What Researchers Did
Researchers investigated the relationship between visual prognosis and macular oedema characteristics in 27 eyes with retinal vein occlusion treated with hyperbaric oxygen.
What They Found
Of 27 eyes treated with hyperbaric oxygen for macular oedema, 14 showed visual improvement. Specifically, 11 of 19 eyes (58%) with mild ischaemia improved, compared to only 1 of 8 eyes (13%) with severe ischaemia. The degree of macular ischaemia significantly influenced visual prognosis, more so than fluorescein leakage.
What This Means for Canadian Patients
Canadian patients with macular oedema due to retinal vein occlusion might have a better visual prognosis with hyperbaric oxygen treatment if their macular ischaemia is mild. This information could help ophthalmologists in Canada select appropriate candidates for this therapy, potentially improving treatment outcomes.
Canadian Relevance
This study has no direct Canadian connection as it was conducted in Japan.
Study Limitations
The study's small sample size of 27 eyes and potential selection bias based on angiogram quality are notable limitations.