The main reason for the 47-year-old eye flower is the age-induced decline in eye adjustment function. When the adjustment function declines to the point that it is not enough to meet the need for near adjustment, there will be a strain to see near, causing a decline in near vision, clinically known as the phenomenon of presbyopia. If you have presbyopia, you need to go to the hospital for optometry and wear the right glasses to achieve a clear state of near vision. 47 years old presbyopia is a relatively normal age, most people gradually appear after the age of 45 presbyopia phenomenon, once the phenomenon of presbyopia, one is to pay attention to the use of the eyes, the second is to wear presbyopic glasses, most people wear presbyopic glasses after the near vision will improve, generally to about 60 years old, presbyopia The degree of presbyopia will be relatively stable.