Presbyopia Guide


Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

Between the ages of 40-45 years, most people suffer from the refractive error presbyopia.  In Greek this is the word for ‘aging eye.’  It occurs when the natural eye lens becomes less elastic and the muscles that pull it into focus become less powerful. 

The animation shows how in order to see objects at different distances the eye needs to change it’s focal power. Muscles in a young eye contract to relax the ‘jelly like’ lens, changing its focal point. As we get older our lens continues to grow. Layers of fibres are laid down making the lens less flexible. Even when the muscles fully contract the lens no longer bulges out.

next page>>>