What is the hyperopia reserve?
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....
What are progressive multifocal lenses?
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......
Control of dyeing method and dyeing effect
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 common colors of dyeing 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 principle of resin lens
This artical mainly introduces the dyeing principle of resin lens and Dyeing solution and dyeing apparatus......