Apart from fashion and glamour, sunglasses are now a days widely used for eye protection and vision enhancement in certain field of work. Eyes are precious gift of God worth protecting because they enable us to rejoice the magnificent and utter beauty of this life and add colors to it.

Apart from protection they can give you cool looks, glamour and much more regarding your appearance.

Let’s take a look what sunglasses can do for you apart from fashion and cool looks.

Protection from Harmful UV Rays

Ultraviolet (UV) radiation can develop various kinds of eye problems including cataracts and age-related macular degeneration (AMD). Sunglasses can help in protecting eyes from developing such issues. They can also help to prevent wrinkles by protecting the delicate skin around the eyes from premature ageing. Good quality sunglasses protect your eyes from harmful UV rays of sun specially in summers.

Sunglasses protect your eyes from wind, dust and debris

Sunglasses can act as an effective barrier against wind, dust, smoke and other kind of pollution in the air. They keep the moisture level of eyes balanced by reducing the evaporation of tears and eye water level. If your wear contact lenses for eye sight issues, a good pair of sunglasses can help you protect them for wind particles, humidity and other elements going into your eyes and disturbing your lenses. To get such protection, consider close-fitting “wrap” style frames as these are a particularly effective barrier.

Sunglasses can enhance vision

Sunglass lenses are tinted to reduce the amount of brightness and sharpness of light to enter your eye and increase terrain definition. What color of tint you choose may affect the following factors:

• The quantity of light reaches your eyes,
• How well you see other colors, and
• How well you see contrasts.

You need to choose the correct and most suitable color tint for your activity to help improve your visual acuity in a certain environment. Some bright or fashionable colors will change your color perception very badly. From a visual standpoint this is why it is usually best to choose lenses that are grey, brown or green.

When is it most important to wear sunglasses?

It very beneficial to wear sunglasses whenever you are going outdoors but it is essential particularly when:

• In summers: UV radiation is 3 times higher than it is during winter
• At the beach or near the water (one of the most reflective surfaces)
• AT high elevations like mountains, top of skyscrapers etc, due to more wind exposure.
• If you have had cataract surgery/ are taking photo-sensitizing drugs.

Selection of Suitable Sunglasses

Frames

Frames are available in countless shapes and they greatly impact your looks and usability of sunglasses. In fact, finding sunglasses with the qualities that are most important to you could be as simple as choosing the right frame material because each type has its own distinctive strong points.

Plastic (Nylon) Frames

Nylon frames are very popular in sports use since they are lightweight and stretchy. They can bend slightly and return to their original shape instead of breaking when pressure is applied to them. This flex can also help the glasses grip well on the wearer's face.

Metal Frames

Metal frames are usually harder than nylon frames and they can be damaged when the wearer participates in sport activities. This does not imply that they cannot be used for such activities. Because metal frames are more rigid, some models have spring-loaded hinges to help them grip the wearer's face better. In some metal frames the end of the resting hook and the bridge over the nose is textured or has rubber or plastic material to improve hold. The ends of the resting hook are curved so that they wrap around the ear.

Lens

Manufacturing material of lens matters a lot in all aspects whether it is regarding weight, comfort ability performance or durability

Polycarbonate Lens

Polycarbonate lens are extremely light weight, durable and adequate. Comparing to glass lens this type is far more light and durable. In manufacturing of such type of lens the color is inserted throughout the lens preventing the chance of peeling off or scratching. As a result it remain optically precise. Another plus point of such lens is that it help protection against UV rays. Several types of glasses are available with prescription in such specs.

Glass Lens

Coming to glass made lens, their core feature is optimum optical quality and the resistance against scratches. Most premium sunglasses are manufactured from distortion-free, borosilicate glass to ensure the maximum satisfaction level in terms of vision. As a safety measure, all glass made lens are passed through a special ball-dropping test.

Plastic Lens

Coming to the last and the inferior type, plastic lens are far cheaper, less weighted, softer and easier to scratch. Manufacturing of lens from plastic is not in trend now-a-days and people usually prefer polycarbonate lens as compared to plastic ones.

Photo-Chromatic Lens

Photo-chromatic lens are the one which change their color lighter or darker depending on the level of UV rays. Premium brands offer such sunglasses with such lens. One of the major drawback of such lens is that if you are behind some kind of glass or windshield the wont work. For them to work you have to be under direct influence of UV rays (sunlight). Usually they are made from polycarbonate but some manufacturers also manufacture them from glass and plastic.

Mirror Lens

Mirror sunglasses are preferred for use when you are in contact of direct bright sunlight. Beneficiary of such type of lens are those who remain under the influence of sunlight for extended period of time such as construction worker, mountain climbers, policemen and boaters.

Non-Polarized Lenses

Keeping in mind the area of usage of a lens non-polarized lens, it is fit for all type of routine day to day activities. Tinting of such types of lens gives you maximum satisfaction while creating high definition color scheme and fighting irritating glare. Almost every color is available in tinting.

Polarized Lens

Regular non-polarized sun lenses indiscriminately filter all light whether it is horizontal or vertical. Glare is dampened, but not eliminated. More importantly, by filtering all components of light, visual acuity is diminished. On the other hand polarized lenses allow in the vertical component of light, which is preferred for clear vision, while eliminating the easily scattered and skewed horizontal component of light. Vertically aligned light is preferred because it respects the natural tendency of the visual system to focus on the vertical component of an image.

Face Shapes

What is your face shape? Heart? Square? Determine your face shape and then head towards the suitable sunglasses that fits your face. Here is a guide for you about what type of sunshades fits you well. Whether you're wearing your glasses for fashion or function, you have to look your best. Great eyewear can enhance your appearance by drawing attention to your favorite features while minimizing any imperfections.

Oval Shape

Oval face shape is considered ideal when it comes to beauty standards and suitability of face wears. Oval faces have the most balanced proportions. Any shape of frame will look god on an oval shape which is very fortunate. Frames that are as wide or slightly wider than the broadest part of the face will help maintain oval's natural balance. Glasses with detailed embellishments also look great with the high cheek bones typically found on oval faces.

Heart-shaped Face

Heart-shaped faces looks like the typical love symbol drawn. The widest part of the face is at the top and the narrowest part at the bottom. People with heart-shaped faces have jawlines that match to a defined chin. While choosing glasses for heart-shaped faces, keep in consideration the frames which minimize the width of the top of the face and broaden the look of the chin. People with heart faces should avoid frames that could exaggerate the width of the forehead or the narrowness of the chin.

Round-Shaped Face

The face shape we call round is circular, full, and without strong lines and angles.

One with a round face must be extremely careful while choosing sunglasses. The shape of the sunglasses should ad contrast to roundness of face. One should avoid such shapes that enhance the roundness of face. A well-chosen pair of sunglasses can add angels and a bit of thin look to a round face.

A basic rule while choosing a pair of sunglasses for people with round faces is to choose glasses that are wider than they are tall, as wider frames give the illusion of a slimmer face. Also glasses with a clear bridge can make your eyes appear wider while adjustable nose-pads can prevent frames from resting on fuller cheeks. Choose glasses with prints and embellishments.

Square-Shaped Face

Distinct angels, strong jawlines and equal measurements on top and bottom forms a square faces.

While selectingg glasses for square-shaped faces, choose such frames which give length and softness to hard angels. Add curving lines and smooth frames, you will make a square face appear thinner and softer.

Special Use

Land Vehicle Driving

Driving a vehicle is a thrilling yet careful job. When you are driving for adventure and sports purpose the speed and risk are very high and a glare caused by low sunlight in the day, high street lights at night, reflection on snow or water, high beam light by other vehicles can be dangerous. A good pair of Sunglasses can protect against glare when driving.

You need to keep in mind two principles: vision must be clear, and the glasses must let sufficient light to get to the eyes for the driving conditions.