What Researchers Did
Researchers reported on two patients who experienced sudden visual loss due to central retinal artery occlusion (CRAO) and were subsequently treated with hyperbaric oxygen therapy (HBOT).
What They Found
In the first case, a 61-year-old female's best corrected visual acuity (BCVA) improved from counting fingers to 1.0 after eight sessions of HBOT. Similarly, a 69-year-old male's BCVA improved from counting fingers to 0.8 after nine HBOT sessions, with both patients showing normalization on fluorescein angiography. These findings suggest HBOT may be beneficial for vision recovery following CRAO.
What This Means for Canadian Patients
For Canadian patients experiencing sudden vision loss from central retinal artery occlusion, hyperbaric oxygen therapy could potentially offer a treatment option to improve visual acuity. While promising, patients should discuss this therapy with their ophthalmologist to understand its applicability and availability.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
The primary limitation of this study is its design as a case report involving only two patients, which limits the generalizability of the findings.