We know that presbyopia is caused by the loss of the ability to adjust the eyes and the inability to change the focus of the eyes, so when you look at the near places, you can not focus well, just like a camera, if you can not focus well, the photo will be blurred.
Age-related cataracts are a kind of aging disease. According to some data, the prevalence rate of age-related cataracts is 80% over 60 years old and 100% over 80 years old, but the degree and tolerance ability of each person are different. In real life, we meet many elderly friends who say that their eyes are not blurry anymore and they think they are “old again”, but after examination, they are found to have cataract. With the change of lens density, people’s eyes will shift to myopia, which means that many people’s eyes are combined with myopia.
As we all know, the more myopic a person is, the closer the focus of the eye is. When myopia reaches about 300 degrees, the focus will fall at a distance of about 30 cm in front of the eye, so even if the eye does not have the ability to mediate, the things in front of the eye at 30 cm can be seen clearly, so there will be a situation of “flowering eyes not flowering”. In fact, this situation is very common, and it does not mean that one’s blinkers have been cured, the eyes still have no adjustment ability, but the focal point change caused by myopia compensates for the problem of presbyopia, and at the same time naturally causes another problem, that is, seeing far away is not as clear as the original. Therefore, if you find that you are not seeing as clearly as before, it means that you may be suffering from senile cataract.