Understand the impact of frame selection on the lens
Frame size is an important consideration when using progressive lenses because some progressive lenses work better in frames of different sizes. Since progressive lenses allow you to see at all distances, it's important that the whole range of vision fits within the frame. Therefore, very short lenses and larger lenses are not suitable for progressive lenses.
Is it true that green film prevents blue light?
Some lenses filter out harmful blue light by reflective multiplayer coating. The lens has a bright blue-violet coating. Green film anti-blue lens relies on the lens material itself to absorb blue light. Therefore, it is impossible to know if the lens can really block the blue light only by looking at the film layer. Instead, it is necessary to use the test equipment of blue light blocking rate or ask the manufacturer to provide relevant experimental data. There is no problem wearing an anti-blue lens unless the user has a high demand for color authenticity, like painters, graphic designers, etc. Because when using anti-blue glasses to see white blue objects, there will be a certain color deviation. It is up to the above workers to make their own decisions.
Bolon Driving Glasses
It is a big brand of sunglasses in China. Bolon sunglasses use pure handcrafted materials and elaborately designed LOGO to interpret the excellent texture and perfect taste of Bolon sunglasses show the distinctive, extraordinary, elegant, and noble temperament.
h3>Types of Colorblind Glasses
Colorblind glasses come in different tints based on the type and severity of color blindness you have. If you have some eye conditions such as short sightedness or long sightedness, you may need a pair of prescription colorblind glasses. If you do not have other vision problems, you may just need a pair of non-prescription colorblind glasses. And the non-prescription colorblind glasses are cheap than the prescription ones.
Reduce the amount of time you spend using electronics.
When children are developing their eyes, parents should limit the amount of time they spend with electronic devices. Increase outdoor exercise and combine work and rest. In today's high-pressure and competitive learning environment, children face textbooks, homework, and exams for a long time, and their eyes do not get a good rest. Outdoor sports can effectively relax children's eyes, reduce children's visual fatigue, but also be more conducive to the healthy development of children's bodies and minds.
How to know if lens is polarized?
Make use of LCD screens. Point the glasses horizontally at the LCD screen and then rotate them upward by 45 degrees clockwise. If it is a polarized lens, it will show a change in color deepening. If it does not change no matter how you rotate it, it is not a polarized lens. You can borrow another person's polarized lens or have previously worn a known true polarizer, and place it crossover with the new glasses you want to buy. At this time, you should see the object clearly from the crossover part with your eyes. Then cross the glasses vertically and horizontally, and at this point, the opposite object should not be visible from the intersection. If this condition is satisfied, it means that a true polarized lens is being tested.
Different Types of Progressive Lenses
The ground-view progressive lenses are designed for people who enjoy the outdoors. These lenses are supposed to provide a natural feel to your vision and reduce lens distortion. Ground-view progressive lenses allow better vision through the sides and bottom of the lens, so they give you improved vision when driving, using computers and looking downwards.
The standard progressive lenses are exactly what they sound like. They offer a wide reading area and have a longer drop between prescriptions and require a larger frame. However, they are less specialized than other lenses.
