Glasses 4 you!

It gets hot after the sun comes up in early morning of summer, which forces people dare not go out but stay at home only. Sunscreen need to put on the agenda. Without proper protection, sun burning is likely to have grave consequences to you and your life. Some instructions against sunlight as follow:

• Protection of skin: sunscreen used every 2 hours,When you travel to seaside, you are bound to see tourists with sunshade hats are everywhere on the beach. Yes, sunshade hats are important in sun protection.
• About eyes: you should wear the anti-ultraviolet glasses.
• Clothes: wear colored clothes, don't be naked from the waist up in the sunlight.
• Awareness of time:the sunlight is the strongest in a day from 10 to 14:00 and avoiding staying out.

All above is easy to achieve. but you may have some difficulty in choosing sunscreen and eyewear. Here, improper points on this topic are available for your reference.

• The choice of sun-tan cream; on the understanding of the relationship between SPF value and the efficacy of sunscreen, the efficacy of SPF30 is not twice as SPF15's, nor the higer the better. It varies from person to person.
• It doesn’t mean that eyewear with colored lenses is bound to have the anti-UV function. As a matter of fact, the real eyeglasses should have signs about UV. Only these with UV over 400 could help us to protect the eyes.

Today, more and more people have started to wear tinted sunglasses and tinted glasses frames with diopters. In fact, many people wearing glasses don't know how to select the color of prescription sunglasses correctly. Here I would like to brief you some advice.

Gray prescription glasses, or light-colored top-down change slowly progressive lenses should be the first choice for most of them. They have similar transmission of spectrum color of visible light.   Lenses colored with brown are also an excellent choice. They has one character that it is good to see distant objects. Jade-green lenses will enable you have ease of mind and help relieve eye strain. In order to match your dress, and make-up, with the other light is not bad.

Some of the color is only used in industry for protection. For example,

• the dark red lens are used by docters and nurses.
• yellow is for shooter so they can see clearly in foggy days,
• Bottle-green lenses are often used by welders.
• and blue is for steelworker before high-temperature furnace.

Steelmaking workers use blue glasses to protect themselves from the high temperature of the furnace. There is a large demand on the sense of sight in some working areas. If not, what would become of that?

What will happen if they don’t do so?

Today, more and more people prefer to wear colourful sunglasses and colourful glasses frames with strengths. Actually, many people who wear glasses don't know how to choose the color of prescription sunglasses correctly. Here are some tips for you.

Grey prescription glasses and graduated lenses need to be the first choice of the majority of people. They have the same effects to the transmission of different spectrums. Lenses colored with brown are also an excellent choice. with a character of far-reaching sight. Lenses of light green show you the feeling of pleasure and ease. Different kinds of light colors can be picked up relating to your clothes.

Some colors just are used for the industrial protection. For example:

• Crimson is used by medical personnel of X-ray.
• Yellow lets the shooting athletes can also see clearly in the foggy days.
• Dark green lenses are commonly used by electric welder.
• Electric welders are likely to choose dark green ones.

Some of the jobs have high requirements for sight , colour, and distance in visual sense. So drivers, surgeons and painting workers should choose glasses without any colors. If not, what would become of that?

What will take place if they don’t do so?