Why are blue light glasses yellow?
The material of the lens makes it turn yellow. If it's just blue and the lens is yellow, that's the material itself. Blue light glasses can weaken blue light entering human eyes. Blue light is mainly produced by mobile phones and computers in life. The blue light on the electronic screen is unchanged, so a film can only be designed on the lens to absorb blue light. This can effectively reduce blue light. The complementary color of blue light is yellow, so the yellowing of the anti-blue lens is normal. The material of an anti-blue light lens can effectively shield the blue light. If the blue light is removed from the white light we usually see, it will show yellow, which is a normal phenomenon.
Disadvantages of Progressive Lens
There are deformation areas under the left and right sides of the lens, which make the image blurry and irregular. It takes 1-3 weeks to get used to it. In addition, it has a narrower field of view in the near and middle distances, and long-term concentration on the narrow focal point can easily make the eyes tired. Suitable for people who need to alternate between distant, medium, and near vision.
However, with the development of science and technology, more and more progressive multifocal glasses have emerged that have a wider field of view, more comfortable wearing, and better meet the needs of eyes. Nowadays, the use rate of progressive lenses among middle-aged and elderly people abroad is quite high. Single-lens and double-lens reading glasses are gradually being replaced by progressive multifocal glasses.
Eyemart Express was founded with the clear goal of providing people with affordable, fast eyeglasses of the day. That has been their focus for 30 years and will continue to be their focus as they look to the future. Seeing things clearly is often life-changing, and they're dedicated to helping you see some of the greatest moments of your life. In short, Eyemart Express, they do not only hire talented staff. They invest in them. Their optical training and development program is designed to make their staff improve. They strive to develop insightful and intelligent leaders in workplaces and communities. They built a proud culture based on a clear set of principles: trust, compassion, openness to chances, and development. In short, they believe that developing great people creates the best environment for their business, their products, and most importantly, their customers.
What is a titanium alloy?
Titanium alloy refers to any alloy metal made of titanium with other metals.Titanium is an important structural metal developed in the 1950s. Titanium alloy has high strength, good corrosion resistance, and high heat resistance.
Tortoiseshell glasses have many benefits.
Tortoiseshell glasses are made from the only sea turtle on the earth that can digest the glass material, and its sea turtle is the country's most precious wildlife, which is of great value. Wearing tortoiseshell glasses will not easily slip off even if you sweat and will not produce allergic symptoms. Tortoiseshell is so strong that it will not break even when the frames are bent to 45 degrees and will not be deformed throughout the year. In addition, the stability of the tortoiseshell is good.
What Do Blue Light Glasses Do?
Blue light has wavelength and energy from 380 nm with the highest energy to 500 nm with the lowest energy. The violent and blue-violent rays are more likely to damage our eyes so these rays are also called harmful blue light.
The blue light can be from the sunlight, fluorescent light, LEDs, computer monitors, smartphones, and tablet screens. Long time exposure to blue light may cause eye strain and discomfort. Hence, wearing blue light glasses is an effective way to prevent your eyes from harmful blue light.
What do blue light glasses do? They are specially designed to filter out harmful blue-violent light rays that are commonly emitted from digital screens.
These mesmerizing oversized glasses provide facial protection for the eyes and are popular. From the fashion of the 70s to the Hollywood glamour of the early 2000s, it makes you feel confident and protected.