What is the best harmful blue light blocking rate and light transmittance for blue light glasses?
Blue light glasses are designed to reduce the amount of blue light exposure that reaches the eyes. Blue light is a type of high-energy visible (HEV) light that is emitted by electronic devices, such as computers, smartphones, and televisions. Overexposure to blue light can cause eye strain, headaches, and disrupted sleep patterns. Therefore, it is essential to choose the right blue light glasses that provide the best light transmittance and harmful blue light blocking.
Light transmittance refers to the amount of light that passes through a material. In the case of blue light glasses, the level of light transmittance determines how much blue light is blocked or filtered out.
For individuals who spend a lot of time in front of electronic devices, a higher level of blue light blocking may be necessary. In this case, glasses with a higher level of light transmittance, such as 80% or 90%, may be more effective at reducing blue light exposure while blocking out harmful UV rays and other HEV lights. Glasses with a lower percentage of light transmittance may cause color distortion and affect vision clarity.
When it comes to harmful blue light blocking, it is recommended to choose glasses that block at least 90% of blue light. This level of blocking provides sufficient protection against HEV lights emitted by electronic devices. Some glasses may also have an anti-reflective coating that reduces glare and enhances visual clarity (Example, Blackview blue light blocking glasses).
In summary, when you are choosing blue light reading glasses, anti glare blue light glasses, or computer glasses, the best light transmittance for blue light glasses is near 90%, while the minimum harmful blue light blocking should be at least 90%.
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