When choosing eyeglass lenses, consumers often hesitate between high-definition lenses and anti-blue lenses. These two lenses have their own advantages and are suitable for different use scenarios ...
When choosing glasses for children, you need to pay attention to some details in terms of lenses, frames, optometry, etc. The following is a specific introduction:
Lens selection
Material: The pref...
Effect of refractive index on visual acuity in the aged
Lens thickness
For the elderly with high myopia or farsightedness, it is more appropriate to choose a lens with a high refractive index. The ...
Choose the right sunglasses
Uv protection: To ensure that sunglasses can effectively block ultraviolet light, the label is usually marked with UV400 and other signs, indicating that it can block mo...
Lens material
Glass lens
Functional advantages: Excellent optical performance, can provide clear and accurate visual effects, high refractive index, can effectively block UV and some glare. Its har...
There is no fixed standard for the replacement time of children’s glasses, and it is necessary to comprehensively judge the changes in the child’s vision, the degree of wear of the glas...
