Childre need more cycloplegic refraction when wearing glasses for the first time...
Because the child's lash muscle has a strong ability to regulate, do not spread the word, can not get the accurate degree. Therefore, the cycloplegic refraction can not only confirm the type of refractive imperfection (i.e. myopia, farsightedness, astigma...
It's said that selling glasses earns high profits, but you don't know that our costs are higher...
There are listed equipment below should be need if you will open an optical shop. You could also come to our website below to view product information on the phone. www.jhoptical.cn | www.jhoptical.com......
Is it really that good that adolescent myopia controls progressive lens? Can it really effectively control the development of myopia? Is every student suitable for wearing a juvenile myopia control progressive lens?...
Don't overdraw your child's hyperopia reserves
Hyperopia reserve is not enough easy to myopia, but the children have the risk of amblyopia if it is to much, mom and dad must pay attention to it....
Such a pair of glasses can meet the use of far, near and middle distances at the same time,it has brought good news to teachers, doctors, musicians and computer operators......
Artical about dyeing method,Control of dyeing effect, Dyeing principle of resin lens, Dyeing solution and dyeing apparatus, Fading agent: a chemical solvent that can fade dyed lenses.........
There are five kinds of common dyeing lenses: pink, gray, green, brown and yellow. Different colors have different protective effects on our eyes....
Dyeing apparatus and solution are important for perfect lens dyeing
This artical mainly introduces the dyeing principle of resin lens and Dyeing solution and dyeing apparatus......
