Tag Archives: prescription sunglasses
Many eyeglass doctors or companies will try to sell you photochromic lenses- or transition lenses – as opposed to clip-on or fit over sunglasses for your eyeglasses. While transitions lenses can be much more convenient than carrying around multiple pairs of glasses, or worrying about losing or breaking clip-ons, don’t take these lenses at face value.
The first downside to photochromic lenses is that they fade back to clear by a thermal process, and therefore become less dark when the weather is particularly hot. This means that in the hottest weather, when you are most likely to have a day requiring sunglasses, your sunglasses will be less efficient than normal. Another problem is that on overcast days the lenses receive less direct UV light due to the clouds, so while it still may be bright outside the lenses will only turn halfway and be kept dim. If you live in an area where overcast weather is common, you may want to consider this effect before buying photochromic lenses. The third, and probably most inconvenient, pitfall of photochromic lenses is that a car windshield has a UV protective coating on it. Therefore the lenses will not darken when you are behind the wheel of a car. Depending on your desired driving conditions, you may have to purchase sunglass clip-ons or prescription sunglasses for driving purposes anyways, at which point the photochromic lenses have not saved you much convenience, and certainly have not saved you any money.
Many people claim that these glasses begin to retain a permanent tint as they get older, which makes it more difficult to see through them indoors. This can also lead to problems if you are in to photography, because looking through the camera lens with tinted glasses can cause you to overexpose the picture. Overall, photochromic lenses cost a great deal more than a pair of prescription sunglasses or clip-ons would. While they are more convenient in one capacity, that of not having multiple pairs of glasses, they are extremely inconvenient in many other ways, and because they do not function while driving you may have to get another pair of glasses anyways. It is important to make sure you get a pair of sunglasses that will work well, and photochromic lenses do not seem to do that when compared to actual sunglasses.
People are still unaware of the eye damages caused by harmful UV radiation. In the earlier days, people encountered mild eye damages due to the presence of ozone layer, but now there is an increase in the UV radiation levels reaching the earth’s surface due to ozone layer depletion. High intensity UV radiations can cause a wide range of eye damage including cataract, skin cancer around the eyelids and other eye disorders. Hence, it is important to make use of sunglasses to secure the eyes from harmful UV radiations.
Apart from protection, people have started to make use of sunglasses to enhance their outlook too. Today, sunglasses have become as an important stylish accessory among the youngsters who are purchasing wholesale sunglasses to enjoy various models of sunglasses. Increasing demand and bulk production has also reduced the price of the sunglasses considerably. If you are looking for sunglasses, you need to have basic knowledge about the latest models to make your shopping easier and comfortable.
Some popular types of sunglasses are listed:
Sport sunglasses are specifically designed for sport enthusiasts who are looking for adventurous activities such as mountain climbing, surfing, parachute diving and more. These sunglasses have high optical quality and visual enhancement features for the lenses. Advanced visual enhancement feature helps to identify specific colored things more effectively. Sport sunglasses are made up of high quality lenses that offer 99% UV protection.
Aviator sunglasses that were designed for pilots to avoid harmful radiations while flying were renowned for its aviator style. Now, these sunglasses are becoming popular as a stylish accessory due to their modern and unique outlook.
These sunglasses are produced to satisfy the increasing demand for trendy stylish sunglasses among the fashionistas. Designer sunglasses are available in a wide range of models, designs, quality, size, UV radiation resisting features and much more.
Depending on the eye vision, prescription sunglasses are designed to offer maximum vision and enhanced security from UV radiations. You can choose the frame design, lens quality and other features according to your expectation when opting for prescription sunglasses.
These are types of sunglasses that are becoming more and more popular throughout the world. When it’s up to sunglasses, always check out the UV radiation resisting ability of the sunglasses to avoid unnecessary regrets later, since low quality lenses may not offer complete protection from harmful radiations.