Presbyopia is a type of the accepted ageing process, it belongs to one of the types of refractive error. There are mainly five types of presbyopia, which are:
It is the early stage. The symptoms are mild and people in this stage may have difficult in reading small print.
In this stage, symptoms developed. It is increasingly difficult to read things up-close or focus on detailed activities.
In this stage, eyes can’t focus on objects and images up-close.
This stage of presbyopia usually affects people under the age of 40.
In this stage, people have difficulty in focusing on objects in dim lights.
Keywords: presbyopia; presbyopia types