Today, more and more peoplewearing colored eyewear and prescription sunglasses. A lot of people who wear glasses actually do not know how to properly choose the color of prescription glasses. Below are some advice and suggesions.
Grey reading glasses or progressive lenses that gradually change colours from top to the bottom, should be the first option for the most. as they have a nearly equal transmission of all spectrum of colors of visiable light. Lenses colored with brown are also an excellent choice. especially when the objects are romote. Jade-green lenses will enable you have ease of mind and help relieve eye strain. Lenses of different types of light colors can show marvelous effects by corresponding with your clothes and make-ups.
Some colors are only used in industry for protection. For example:
- Dark red is the X-ray medical use.
- yellow is for shooter so they can see clearly in foggy days,
- Dark green lenses are commonly used by electric welder.
- Blue is the steel workers in high-temperature blast furnace use.
Steelmaking workers use blue glasses to protect themselves from the high temperature of the furnace. So drivers, surgeons and painting workers should choose glasses without any colors. So, car drivers, surgeons and art painters should choose colorless lenses.
If a driver wear lenses of dark colours, he may easily cause traffice accident, since he fails to make a wrong judgement of the distance!