China wholesale Optical Prescription Glasses Factories – I Vision V12487 best quality reading glasses customized – IVISION Detail:
Detail
I Vision Optical VR102 reading glasses is a stylish reading glasses blue light blocking,reading glasses, also known as presbyopic glasses, is a kind of optical products, glasses for people with reading, belong to a convex lens. Reading glasses are mainly to meet the needs of people with presbyopia.
Reading glasses lens is used at middle and old people complement vision, it has the optical index that a lot of national standards stipulate like myopia lens, also have a few special use rules. The use of reading glasses plays an indispensable role in improving people’s quality of life.
Presbyopia is a normal physiological phenomenon, not eye disease, also not old people have. After the age of 40, with the gradual hardening of the lens of the human eye, the ciliary muscle gradually paralyzed, so that the human eye can not effectively adjust the shape of the eyeball (axial change), only by adjusting the distance between the eye and the object, to see the near object must move away to see clearly, then the eye state is called presbyopia.
In general, early presbyopia mainly has two big performance: the first is close distance work or reading difficulty. For example, you need to hold the book away from you when reading, or you need to read in a bright light to see.
The second is optic fatigue. With the decline of regulating power, reading demand is gradually approaching the limit of regulating power, that is, when reading, almost all the regulating power of the eye should be used, which leads to the inability to use the eye for a long time, and at the same time, due to excessive regulation, eye distension, headache and other visual fatigue symptoms are easy to occur. The occurrence of the above two phenomena, it shows that the eyes may begin to presbyopia. For myopic people, the need to take off the glasses or pull the reading far when reading in close distance, is also the performance of presbyopia. After presbyopia, the safest way is to wear appropriate reading glasses for correction.
FAQ
1. Q:Can I customize my logo?
A: Yes,of course.The OEM is available & welcomed.
2. Q:Can I take the samples?
A:Yes,you can take the samples.And the samples cost will be returned when you place the order.
3. Q:What is our production delivery date?
A:For stock goods and samples,we can arrange to expresss them within 3–5days.
For promotional products,the delivery time will be 15–20 days.
For OEM order,we will finish productsion and make the delivery within 45–90 days after we receive your payment or deposit.
4. Q:What’s our MOQ?
A: 50PCS/MODEL/COLOR for Ready to Ship Goods.
5. Q:What’s our payment term?
A:Ready good 100% TT, Paypal,Credit card!
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By Joyce from Czech - 2018.11.22 12:28