
The findings are consistent with mounting proof that high levels of dietary omega-3 fatty acids benefit eye health, the researchers said.
"But, unlike earlier studies, we included shellfish intake in the determination of omega-3 fatty acid consumption," said researcher Bonnielin K. Swenor of the Wilmer Eye Institute at John Hopkins University. "This is main because shellfish, particularly crab and oysters, are a main component of the diet" of the study population.