Classic Vintage progressive ready made reading glasses blue light blockers reading glasses

In normal visible light, blue light has a wavelength of 400-500 nanometers, which is short wavelength and has the characteristics of high energy and strong penetration. Electronic devices such as mobile phones, computers, televisions and other screens emit a lot of blue light. Anti-blue reading glasses usually use special materials and technologies, such as coating, absorbent, etc., to filter out some harmful blue light, while keeping other wavelengths of light through, so as to reduce the irritation and damage of blue light to the eyes.
Middle-aged and elderly people who use electronic devices for a long time. If middle-aged and elderly people often use mobile phones, tablet computers and other electronic devices to watch news, watch videos, play games, etc., wearing anti-blue reading glasses can reduce the damage of blue light to the eyes to a certain extent, alleviate eye fatigue, dryness and other discomfort symptoms.