Law of the Day | 0205
Another design flaw is that the lens itself is made of living tissue, which continues to grow throughout life.
‘The lens fibre cells build up like layers on an onion skin — in time, this makes the lens thicker and, crucially, less flexible,’ says Professor Gartry.
‘It means it’s less able to change shape quickly and zoom in and out of focus. This is why seeing things close up becomes harder past the age of 40. The older you get, the more rigid the lens becomes and the harder it is to move.’
[x]#10751 fan dinsdag 5 februari 2013 @ 22:59:40
