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New Scientist The theory could help explain the dramatic increase in myopia in developed countries over the past 200 years. It now affects 30 per cent of people of European descent, for example.
"The rate of starch digestion is faster with modern processed breads and cereals," says Brand Miller. In response to this rapid digestion, the pancreas pumps out more insulin. High insulin is known to lead to a fall in levels of insulin-like binding protein-3, the team points out.
That could disturb the delicate choreography that normally coordinates eyeball lengthening and lens growth