Starting from the age of 50 and in senior age, sight tests should become constant, due to the higher incidence of diseases as cataract, glaucoma and senior macular degeneration.
Cataract is a progressive opacification of the natural crystalline, that is the lens within the eye used for the focusing of images. The most frequent symptom is represented by a reduction of visual capacity or foggy vision and diagnosis is always made by an eye doctor.
Nowadays the only therapy is represented by surgery. It is realized in day-hospital and natural crystalline opaque, is replaced by an artificial crystalline that is named intra-ocular lens. In those last years new and sophisticated intra ocular lenses have been experimented, as for example, multifocal lenses that allow patiens to see at far and at near distances and , finally, the toric lenses that can correct astigmatism.
In this age group, can appear also other diseases, such as, amongst the most important, the senior macular degeneration that is the first cause of low vision in industrialized countries . it is about a serious and progressive desease of the central part of retina, named macula, that is designed to distinct vision and determines, in time, a progressive reduction of sight, so, in this case also, is fundamental the prevention and precocious diagnosis, to evaluate the therapeutical possibilities.
In this age group , after the age of 50 and, above all in senior age, we recommend to be subjected to controls every two years if no symptoms appear, or, according to what eye doctors indicate.
