如何治疗老花眼（How to treat presbyopia）.doc

如何治疗老花眼（How to treat presbyopia） How to treat presbyopia Understanding of presbyopia: With the growth of age, the bodys physiological functions will be degraded, the eye is no exception. Therefore, many elderly people will appear in reading or other work without clear symptoms at close range, and will increase with age and increased year by year, this is the presbyopia. Here we have to know about presbyopia pathogenesis and treatment methods. There was a lens structure of the eyes is a double convex lens, the thick, thin edge, zoom lens is equivalent to the camera, it is in the common role of the ciliary body, can adjust the scene to see Qingyuan, nearly all the eye distance, and this process is dependent on the elastic, ciliary the shape of the lens body itself and systolic and diastolic zonular relaxation and tension to achieve the medicine called regulating function. With the increase of age, capsular elasticity, lens nucleus increases harden, ciliary muscles become weak, and the emergence of presbyopia accommodative power loss. Presbyopia is a normal physiological phenomenon, as people reach a certain age white hair. Patients with myopia and hyperopia eyes also occur presbyopia, but reading the degree of myopia was myopia and presbyopia, so than normal eyes appear late, can generally do not wear presbyopic glasses or just wearing a pair of low number of presbyopic glasses can be symptoms of presbyopia presbyopia than normal people came early, the higher the degree of hyperopia, the earlier. General hyperopia 100 degrees to about 5 years earlier than normal people appear symptoms of presbyopia. The harm of presbyopia 1., depending on the difficult Patients will gradually find that in the usual habit of work, distance reading, can not see the small font, look far from relatively clear. Patients will unconsciously head back, or take books and newspapers to go farther to see the word, and the required reading distance increases with age. 2. reading requires more int