What Researchers Did
Four patients with nonacute central retinal artery occlusion (CRAO) or branch retinal artery occlusion (BRAO) received hyperbaric oxygen therapy (HBOT).
What They Found
Two patients with nonarteritic CRAO, who presented within one day of symptom onset, showed improvement in visual acuity and visual field from initial acuities ranging from light perception to counting fingers at 6 feet. The other two patients, who presented with longer histories of CRAO, did not improve. No complications were reported during the treatment.
Canadian Relevance
This study has no direct Canadian connection or specific relevance to Canadian healthcare practices mentioned.
Study Limitations
The primary limitation of this study is its extremely small sample size of only four patients, which prevents generalizable conclusions.