What Researchers Did
Researchers conducted a retrospective study comparing visual field, color vision, and contrast sensitivity in 21 French Navy professional divers with 21 controls to assess long-term effects of iterative diving.
What They Found
The study found no loss of spatial contrast sensitivity among divers, but a high frequency of yellow-blue axis color vision defects (45.2%) was observed in the diver group. Additionally, corrected pattern standard deviation in the visual field was significantly higher in divers (p<0.01) compared to controls.
What This Means for Canadian Patients
This study suggests that Canadian professional divers engaging in iterative diving may experience subclinical visual changes, particularly in color vision and visual fields. Regular, comprehensive eye examinations, including specific tests for color vision and visual fields, could be beneficial for these individuals to monitor for such long-term effects.
Canadian Relevance
This study was conducted in France and does not have a direct Canadian connection.
Study Limitations
The retrospective design and relatively small sample size of 21 divers and 21 controls limit the generalizability of these findings.