It has been found that age-related macular degeneration (AMD) is the primary cause of central vision loss and results in the centre of the visual field being blurred or fully blacked out finds a recent study. The study was discussed during the '72nd Annual Meeting of the American Physical Society Division of Fluid Dynamic. Jinglin Huang a graduate student in medical engineering at Caltech suggested that inefficient fluid mixing of the injected medicine and the gel within the eye may be to blame. AMD usually starts as dry AMD a disorder in which the macula -- the central part of