http://www.lensociety.com/sunglasses-bifocal/
What are Bifocal Sunglasses?
Bifocal sunglasses are generally prescription glasses with lenses which have two different optical powers and generally prescribed to people suffering from presbyopia and who also require a correction for myopia, hyperopia and/or astigmatism. The top half of the lenses is used for distance correction while the nearer objects are seen through the lower half of the lenses.
Since bifocal sunglasses can be used as reading glasses as well as sunglasses, you are required to have a prescription before you prepare to buy bifocal sunglasses. And you’d best to have an eye examination once two years to check whether you need to change you lenses so as to see more clearly.
An advantage of bifocal sunglasses is that they are available in diverse styles which mean that your choice is no longer restricted to thick framed and dull looking reading glasses as before. You can choose the types that you like most and fit your face most. If you are an outdoor enthusiasts, or your work requires frequent outdoor activities, you can also choose polarized bifocal sunglasses, which are not only able to block the harmful UV rays of the sun but also the harsh glare that other sunglasses cannot block off.
Here are some tips of how to choose bifocal sunglasses from the aspects of lenses, frame style and material and the weight.
It is wise to select lenses that are light weighted and scratch-resistant. Additionally, the shape of the lower corrective area can be decided by you as well. The semicircular ones seem to be favourable by most people.
When it comes to frames, silver or golden plated metal frames or plastic ones of different colors are available. The different styles help you to portray the different shades of your personality. Like the black boxy plastic frames that are most fashionable in recent years make you look cool; the silver or golden metal frames enhance your elegance, while the rhinestone ones show your dignity.
An important factor to take into consideration is the weight of the frame. Heavy glasses not only leave marks on your nose but also cannot be used for long hours.
Online stores are now offering bifocal lenses at astonishingly low prices. Not only will you get a wide collection to choose from but you can also take your time to go through this immense range.
About the Author
EyeExperts.co.uk, is the largest online glasses store that offers various cheap prescription glasses,frames, prescription sunglasses and designer glasses for men and women at lowest prices.
twoeyes Lana Leopard Bifocal Reading Sunglasses
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