Presbyopia is generally characterized by difficulty seeing near objects and eye fatigue, especially when reading small print. One may feel strained, tired, and unable to maintain focus for long periods. For instance, after reading for more than half an hour, symptoms such as blurred vision, overlapping characters, double images, eye soreness, headaches, and even dizziness and nausea may occur. If you experience these symptoms, there is no need to panic. You can first visit a hospital for a detailed eye examination. If no eye diseases are found, simply getting a pair of reading glasses from an optometrist can alleviate these symptoms. It is generally believed that individuals with normal vision (emmetropia) should start wearing reading glasses around the age of 45 and replace them every 3-5 years. For those who were originally farsighted (hyperopic), the farsighted prescription should be appropriately increased. For those who were originally nearsighted (myopic), the nearsighted prescription should be correspondingly reduced.
Individuals with normal vision typically develop presbyopia after the age of 40. The recommended prescription strength for reading glasses is as follows: Age Prescription
40+ +1.00 to -1.50D
50+ +2.00D
55+ +2.50D
60+ +3.00D
It should be reminded to our elderly friends that if you develop presbyopia, due to pre-existing conditions such as farsightedness, nearsightedness, astigmatism, as well as individual differences, you should have your eyes tested at a hospital or optical store to get properly fitted reading glasses. It is best not to purchase them randomly from the market.
Can presbyopia be prevented? Slowing down the body's aging process can help delay the onset of presbyopia. Currently, the basic methods for anti-aging include dietary care and physical exercise. In terms of diet, one should consume more foods rich in protein, vitamins, and trace elements, such as pollen, royal jelly, longan, jujubes, black sesame, fungus, fo-ti, lotus seeds, walnuts, and shiitake mushrooms, and consume less food with high animal fat and cholesterol. Moderate exercise is also beneficial for slowing down aging. Eye fatigue can be relieved through local eye exercises, such as eye exercises, rotating the eyeballs, and performing near-far alternating exercises that help exercise the ciliary muscle.