Han Qing, director of ophthalmology at the Fourth Affiliated Hospital of Harbin Medical University, generally stated that when the eyes are 45 years old, the eye conditioning power is weakened due to the hardening of the lens and the loss of ciliary muscle function. Difficulties arise, and objects need to be removed to see clearly the phenomenon of early presbyopia. At the age of forty-seven years old, the adjustment power dropped further, and when objects nearer were more unclear, it was suggested that reading glasses should be worn for correction.
Of course, due to differences in individual adjustment amplitudes, presence or absence of refractive errors, and poor eye habits, the onset time and degree of presbyopia of the human eye are not the same.
People with nearsightedness do not wear reading glasses because of near vision, so many people mistakenly believe that people with myopia do not pay attention, in fact, this is a misunderstanding. Presbyopia is a normal physiological phenomenon. People with nearsightedness are certainly not exceptional. When you look at nearsighted objects, the brightness of nearsightedness cancels out with the luminosity of old flowers, so sometimes you don't need to wear a reading glasses to see clearly. When a nearsighted person with a large degree of vision looks at a near object, he or she still needs to wear low-grade myopia to see. At this time, the low-grade myopia is his reading glasses.
Some methods in daily life can delay the arrival of presbyopia. Often blink, can make eye muscles get exercise, anti-aging; with both hands to hold the head, rub the scalp everywhere, you can also use the drum method, that is, with the two fingers belly hit the head everywhere; In addition, usually wash your face with cold water, wash your eyes, let The eyeball is constantly turning in the water and wiped dry after several repetitions. Then use your hands to gently rub the face and eye muscles 20-40 times. Long-term adherence is good for preventing presbyopia.
The method of correcting presbyopia is still wearing presbyopic glasses. However, experts do not support the practice of many elderly people who have spent too much time worrying about going to the hospital and buying a reading glasses on the street. Before wearing reading glasses, not only need to check the eye conditioning force to determine the initial presbyopic luminosity, but also to carry out positive and negative relative adjustment checks to the exact presbyopic luminosity. The optical spectacles and interpupillary distance sold in the street are the same, and it is impossible to meet the requirements of all people. Therefore, it is recommended that elderly people must go to professional and authoritative optical shops, or go to the hospital in advance to make relevant data checks. After wearing reading glasses, they should be reviewed regularly to consider whether the degree has been deepened. Generally, they should be reviewed once every 2-3 years.
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