The problem, says Joshua Sanes, a professor at Harvard’s Center for Brain Science, is that they lack a fovea which is a small, specialized area in the retina of concentrated cones.

AIM To recognise automatically the main components of the fundus on digital colour images. METHODS The main features of a fundus retinal image were defined as the optic disc, fovea, and blood vessels.

Background/aims Progression of a fovea-on to a fovea-off rhegmatogenous retinal detachment (RRD) while awaiting surgery is rare. Methods A retrospective review of patient records to identify patients ...