People are prone to blurred vision as they get older, but there are exceptions. In particular, presbyopia and hyperopia are similar in their presentation and are sometimes confused by the elderly. Like farsightedness, presbyopia is a condition in which people cannot see things clearly up close and need to wear convex lenses to help correct it. Presbyopia is a natural phenomenon that occurs as the human body ages, while hyperopia is a refractive error and a pathological phenomenon. Presbyopia is a physiological phenomenon that occurs only in middle and old age, starting after about 45 years of age, while hyperopia can occur in people of any age. Presbyopia is mainly due to the fact that as we age, the elasticity of the lens of the eye decreases and the power of the ciliary muscle to adjust weakens, so that the light from the near side cannot fall correctly on the retina, resulting in unclear seeing, which is the same reason as getting old and having weak legs. Farsightedness has nothing to do with the aging of the body, it is caused by genetics, trauma, disease, etc. The refractive power of the eye is too small or the axis of the eye is too short, resulting in refractive error, unable to form a clear image, this pathological change may make the left and right eyes appear different degrees of farsightedness. Presbyopia is not clear near, but far is generally normal, wear glasses mainly to correct the near vision, do not need to wear glasses when looking far; farsighted eyes have defects in the ability to see near and far, mild farsightedness can be compensated by the adjustment of the ciliary muscle, even without glasses to see near and far are normal, but severe farsightedness exceeds the adjustment ability of the eye, you need to wear glasses to correct near and far vision at the same time The farsightedness and presbyopia are not the same thing. Farsightedness and presbyopia are not the same thing. When the elderly find that they can’t see clearly in the near, they should not buy a pair of presbyopic glasses to wear, but should find an ophthalmologist as soon as possible to confirm what the cause is. If it is farsightedness, it should be determined whether it needs to be corrected with glasses according to the degree of severity, generally speaking, it is best to have glasses for high farsightedness of 500 degrees and above. If it is presbyopia, you also need to go through an examination to determine the degree, and then match a pair of presbyopic glasses suitable for you.