What Researchers Did
Researchers compared hyperbaric oxygen therapy (HBOT) with intravenous thrombolysis (IVT) to see how well each treatment improved vision and safety for patients with central retinal artery occlusion.
What They Found
They found that both HBOT and IVT significantly improved vision, with HBOT leading to a -0.57 logMAR improvement and IVT to a -0.53 logMAR improvement. Clinically meaningful vision improvement occurred in 45.8% of patients treated with HBOT and 42.0% of those treated with IVT. Adverse event rates were similar, at 11.3% for HBOT (mainly ear barotrauma) and 10.2% for IVT (mainly bleeding).
What This Means for Canadian Patients
For Canadian patients experiencing sudden vision loss from central retinal artery occlusion, this study suggests that both HBOT and IVT could be effective options for improving vision. Patients should discuss the potential benefits and risks, including different types of side effects, with their healthcare providers to decide on the best treatment approach.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This meta-analysis was based on observational studies, not randomized controlled trials, and noted significant differences in how IVT studies were conducted, which limits the strength of the conclusions.