Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.
cpr mask and bag
We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.
Professional team work and production line which can make nice quality in short time.
The professional team provides 24 * 7 after-sales service for you, which can help you solve any problems
Address：No. 3888, Hutai Road, Baoshan District, Shanghai, China
I am going to ,wear, these ,glasses, forever! I can't ,do, anything about it since my dad is also ,myopic,. My mom doesn't ,wear glasses, btw. However, if it is genetics, I just accepted that fact until my eye grade turned to -3.25. Those maybe one of the most depressing moments of my life. Imaging I have to ,wear, eye ,glasses, everyday for the rest of my life.
Moderate cases of ,myopia do, not generally cause problems. High ,myopia, , on the other hand, is defined by the World Health Organization as the prescription being equal to or less than -5.00 diopters in either eye. 1 If the eye becomes that dangerously long, it increases the risk of conditions that threaten vision including ,myopic, degeneration, cataracts, glaucoma, staphylomas, retinal thinning ...
Only children with ,myopia, below two or three hundred degrees can choose to ,wear glasses, when looking at the blackboard and take off their ,glasses, when they are close to writing. If the ,myopia, degree is higher but ,does, not ,wear glasses,, then can habitually squint, frowns, causes the visual fatigue more easily, accelerates the ,myopia, development.
What is ,myopia,? Nearsightedness, or ,myopia,, as it is medically termed, is a visual condition in which near objects are seen clearly, but distant objects ,do, not come into proper focus. Why ,does myopia, occur? When your eyeball is too long or the cornea has too much curvature, light entering the eye is not focused properly on the retina – the sensory layer – inside the eye.
In fact, many office workers now have some ,myopia,, but the degree is very low. If such ,people, read books, they ,do, not need to ,wear glasses,. This is because, ,people,'s eyes are basically fixed after the age of 18, and their eyesight is basically stable, except in special circumstances, and the degree is not high, belonging to low ,myopia,, it doesn ...
Unbelievable as it may seem, many ,myopic, children are told by their doctors that if they ,wear glasses, or contacts all of the time their eyes will get better, or at least not get worse. This is totally false. Because of this type of erroneous advice, ,people, actually believe that ,glasses, "save" eyes.
Myopic, correction: If the ,myopia, is of lower magnitude, it is possible for a ,person, to read comfortably at a reading distance. However, if someone has moderate to high ,myopia,, reading without any correction may be uncomfortable since one has to bring the reading material very closes to their eyes.