Sunglasses protect you from excessive exposure to both visible and invisible components of light. The units protect you against ultraviolet radiation which can cause ocular problems such as pterygium, cataracts, photokeratitis and snow blindness.
The units also protect you from flare reflected off shiny non-metallic surfaces such as water. This allows you to see into water when a person not wearing the glasses would only see the water surface.
If you have eye problems such as short-sightedness, long-sightedness or any other condition, there are prescription sunglasses that you can wear. The cool thing with these units is that you can wear them almost anywhere thus getting rid of the need for contact lenses and clip-on sunglasses.
Lenses
Just like your regular glasses, prescription sunglasses come in almost any type of lens that you want. This means that you can not only use the units outdoors, you can also use them for reading.
You should go for lenses that fit your lifestyle. For example, if you are into outdoor sports such as boating and water-skiing you should go for polarized lenses that will help you in reducing the glare.
On the other hand if you work in manual jobs such as in the construction sites you should go for polycarbonate lenses. In addition to these lenses being light, they are also shatter proof. As rule of thumb you should avoid glass lenses as they are heavy and break easily.
In addition to considering your lifestyle you should also consider the eye problem that you are suffering from. For example, if you have problems reading close text you should go for presbyopic lenses.
Frame styles
Wearing sunglasses doesn’t mean that you have to be unfashionable. Designers and companies have come up with many frame styles that you can choose from. You should visit your nearest store and choose the frame that is right for your face shape and activity.
When choosing the frame, you should avoid the wraparound frame that curves around the head. This is because most of these frames have extreme curves that tend to distort vision.
Tint
If you have been shopping for sunglasses you must have noticed that they come in different colours. The colours protect you from different types of lights and you can use them in different applications. The most common tints that you will come across are:
Amber/yellow/gold: they are known for filtering out blue light and emphasizing shadows so that you can easily see bumps and breaks. They are ideal for driving, golfing and hiking.
Gray/green: they are ideal for bright sunny days as they reduce the strain on your eyes.
Rose/pink: they are ideal for almost any application and very effective at reducing glare.
Conclusion
There you go. That’s all you needed to know about prescription sunglasses. For the units to last for long and offer you the service you deserve you should buy them from a reputable store.
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