Normally sunglasses are believed to be fabulous fashion accessory that show you more stylish. These days, sunglasses become an essential accessory for young or old who spend time outdoors.
Sunglasses give protection to the eyes against harmful rays of the sun which further prevents skin cancer around eyes and other eye diseases. Sunglasses also reduce glare caused by sun and this prevents healthy eyes.
There are some qualities which need to be considered at the time of purchasing the sunglasses using Amazon discount coupons:
You should try to find pair of sunglasses which block ultraviolet rays almost completely. The shades should be able to block UAV and UAB rays because they can cause damage to the eyes. You should opt for sunglasses that are labeled “UV 400” that can block all the light rays having wavelength to 400 nanometers that covers all the UAV as well as UAB rays. This will prevent premature aging of delicate skin around eyes.
*Polarized Lens Protection
You should opt for polarized lenses which reduce the glare from glass, water and snow using coupons at Daraz Pakistan. These are much better than normal tinted sunglasses for certain sports and driving as these permit wearer to see clearly.
Though best protection against sun glare is offered by polarized lenses, some people still go for tinted glasses. Tints applied to the lenses of sunglasses assist in absorption of light passing through them.
Though the color selected is as per choice of the individual, there are few color related benefits which should be considered:
- Gray Lenses: These lenses reduce brightness without distorting colors.
- Brown and Amber Lenses:They reduce some glare from sun including glare by blue frequency in the sunlight. The colors are distorted more by brown and amber tints than gray tints.
- Yellow Lenses:They are useful for improving the images but can cause color distortion.
- Green Lenses:They reduce glare and help in filtering out part of blue light. These provide contrast between the objects.
- Rose Lenses: These are good for people involved in water sports or outdoor activities.
* Polycarbonate Lenses versus Other Materials
Polarized or tinted lenses are the perfect plastic for the sunglasses lenses and are constructed using compressed plastic tubes. These are shatter proof. Even if they break, they do not crack into large number of pieces but tubes roll on each other providing increased safety to wearer.
Sunglasses can also be made from another plastic CR-39 but that is normally used for prescription lenses. Another option is glass but it is heavy for wearing and is also not safe as polycarbonate lenses.
Presently large frames are popular with the sunglasses and old designs seem to have made a comeback. However large sunglasses can cause headache because of heavy frame. Lightweight sunglasses eliminate this problem but you should always try the frame properly before buying it. Get the best offers on sunglasses at savemypocket. Being light weight, titanium is the best choice of metal for the frame. It is durable, flexible and will serve longer.