What Researchers Did
Researchers reviewed the long-term visual and structural outcomes, including new blood vessel growth, in four patients who received hyperbaric oxygen therapy (HBOT) shortly after experiencing a central retinal artery occlusion (CRAO).
What They Found
Two patients with non-insulin dependent diabetes developed early eye complications (neovascularization) within one month of treatment, with their final vision being only light perception over a year later. The other two patients, one with diabetes and one without, did not develop these complications and saw their vision improve to 20/400 and 20/250, respectively.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This study was limited by its small number of participants, a case series of only four patients, which restricts the generalizability of the findings.