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常言:“人到44,眼睛就长剌”。人们随着年龄的增长,一般在45岁左右,因眼球内水晶体失去弹性,睫状肌肌力衰弱,调节作用日益下降,不能满足于正常视力之需要,造成阅读及近距离工作的困难,往往需要将书放远些才能看清,这种现象称为老花。老花可通过眼科对视力进行检定,确定戴带适宜工作用的眼镜。一般按30厘米视物清楚为适宜。40岁要戴
As the saying goes: “people to 44, long eye on the assassination ”. People with age, usually at the age of 45, due to the loss of elasticity within the lens of the crystal, ciliary muscle weakness, regulatory role is declining, can not meet the needs of normal vision, resulting in reading and close working difficulties, often Need to read the book to see more, this phenomenon is called presbyopia. Presbyopia can be visually assessed by ophthalmology, to determine the appropriate wearing glasses with work. Generally 30 cm depending on the material as appropriate. 40 years old to wear