Today’s safety glasses usually are made of polycarbonate, plastic, or a special tear-proof glass that is strong enough to protect the eyes from various injuries and hazards. Glass lenses do not need scratch quickly, but they can become uncomfortable due to their weight. On the other hand, plastic lenses are much lighter than glass, but they are also more likely to scratch.

There are many designs available to protect the eyes from flying debris, splashes, and other hazardous materials. Finally, polycarbonate lenses are more resistant and resistant to bumps and scratches compared to plastic and glass types.

Regardless of the material used in safety glasses, it is important to have lenses that measure at least 1 millimeter thick. Safety glasses are sometimes called “dead” because they only protect the user’s first eyes, but due to the advancement in the development of safety glasses, the dead in safety glasses has improved to protect the user from the front of the face and also the sides.

There are different types of safety glasses that you can choose according to your specific needs. There are two, prescription and non-prescription safety glasses, safety glasses, specialized masks, welding helmets and full-face respirators. The type of safety glasses you should use depends on the activity in question. They can be used to protect the eyes from splashes of blood, sawdust, flying debris, dangerous gases, ultraviolet light, dangerous chemicals and even insects that can irritate sensitive eyes.

Safety Glasses:

The Different Types And Their Uses

Safety eye shields are used to provide an expert protection for eyes. They vary according to different intended uses. There can be operating spectacles used in a hospital; welding glasses used when the wearer was embarking on welding, lasering protective eyeglasses used in laser engraving and so on so forth. They are so well targeted that they have another name as professional glasses which indicates that they can be applied in various industrial production. They mainly function to prevent eyes and faces from harm from ultraviolet radiation, infrared ray, microwave and some other electromagnetic radiations, as well as dust, smoke dust sweepings, and chemical solution, etc.

Direct Vented Glasses:

These glasses ensure that there is circulation of environmental air into the glasses. These can be used in situations where any chemical hazards or gaseous fumes are not involved.

Indirect Vented Glasses:

These glasses have a closed vent or hood which ensures the circulation of fresh air while preventing the direct passage of chemicals and liquids. The main objective of indirect venting is to provide that no damage is caused directly to the eyes by fumes and liquid chemicals. These glasses can be used in situations where there are possibilities of danger and injury from chemical hazards.

Non-Vented Glasses:

Such glasses do not allow any circulation and protect the eyes from mist, liquid, vapors, and dust. These glasses can protect the eyes from damage that might be caused by flying objects, like splinters, wood particles They are mainly used to prevent sweepings and chippings of metals and sandstones to damage eyes mechanically. Both the lenses and frames are supposed to be sturdy in construction so that they are impact-resistant. Coverings are needed to get equipped with the frame, and there should be vents. The lenses can be made from heat-rested glass; colloid bonded glass or copper wire gauze., etc.

Impact Injury:

Safety glasses that have the feature of side-shield protection.

Dust Protection:

Indirect vented glasses or directly vented goggles provide adequate protection against the harmful effects of dust. Normally, there are no specific requirements on the lenses and frames for those eyeglasses, but the lenses should be of the high permeability of visible light, so that even in dusty environment, the wearers can see objects in vision more easily and coverings around the frame are also needed so that dust can be blocked outside.

Chemical Splash:

Non-vented or indirect vented glasses with side-shield protection is suitable to avoid chemical splashes.They are mainly used to prevent the irritative or corrosive solution from injuring eyes chemically. The lenses can be non prescribed and made from ordinary materials, but there should also be coverings equipped around the frame in case of solution splashing into eyes. They are usually needed in various laboratories and hospitals, etc..

Optical Radiation:

In such cases, specially filtered glasses, like laser eye-wear will provide adequate protection.They are mainly used to prevent harmful rays, like UV, to harm eyes. The lenses are made from select glass which is of permeability of visible light, and at the same time reflect or absorb harmful rays. Therefore, chrome, nickel, hydrargyrum or silver is supposed to be coated with the lenses. Usually, blue lenses can absorb infrared rays; yellow, green lenses to absorb both ultraviolet radiation and infrared rays; clear lead lenses to absorb X and Y rays.

Heat Hazards:

Safety glasses and face-shields are required to protect the eyes and face from burns or any other damage caused by high temperatures.


Sunglasses are trendy and fashionable. They come in different styles and are liked by everyone. The main part of the sunglasses is its frame, and it is to be chosen wisely. There are different types of frames available at ToolFreak. Youths go for colorful frames whereas aged people like plain frames. The increasing popularity of sunglasses is due to various reasons. Some of those reasons are listed below:

UV rays – Eye

problems are increasing all over the world. Many doctors blame UV rays for increasing eye problems. Exposure to UV rays can cause various eye diseases like cataracts, eye irritation and also skin cancer.

Protection of eyelids – The rays of the sun are also harmful to the surrounding areas of eyeslike eyelids. The delicate tissues that surround the eyelids can suffer from melanoma due to UV radiations.

Eyes are prominent, and good quality sunglasses are essential for its care. Every person in this world is at risk from UV rays. The only way to protect your eyesight

from the harmful effects of UV rays is sunglasses.  Sunglasses help you to protect your eyesight, but it can also be used as a fashion accessory. Many types of sunglasses are available in the market and that too in multiple designs. You can go for sunglasses with a metallic frame if you want stability and durability in your sunglasses. Sunglasses with aluminum frames are light in

weight and are also non-corrosive. They are used by famous designers in high-end designs.

After choosing a frame for your sunglasses, you need to decide the tint of your sunglasses.

Different colors for tints display varying effects of light. Many people prefer black and gray tints for their sunglasses because they effectively reduce brightness without affecting the colors as they appear. Yellow color tints are considered more effective in reducing the glare, but they cause much color  distortion.

If you want to save all the headaches of choosing the perfect sunglasses, then you can smoothly go for those sunglasses which are appropriate for all shapes and faces. Buying sunglasses is not an easy task. You need to keep various factors in mind. The best choice for most of the people can be to go for aluminum frame sunglasses with black tint. It is the safest bet that one can do in case of sunglasses if you are not willing to spend a lot of time on choosing one.