For the research, 3,654 people aged 49–97 had WBC count measured at baseline and rates of early and late AMD were recorded over 10 years of follow-up.
Overall, 36 cases of AMD were recorded and 2,217 people were considered at risk.
This showed that people with a WBC count greater than 6.7 x 109 cells/litre were 85 per cent more likely to develop early AMD than people with a WBC count of 5.5 x 109 cells/litre or less.
This association was present in analyses of early AMD lesions. But no link between WBC count and late AMD was noted.