Jun 232012
 

polaroid_mens_best-of-best

Polarised lenses are a special type of light-filtering lens that do not have a regular tint like regular sunglasses. They are more effective at filtering glare from sunlight and reflected light, such as the sun reflecting off water, sand, snow or hot road surfaces.

Instead of a regular tint, polarised lenses have a layer that consists of hundreds of tiny vertical lines that are so small, to the naked eye they look like a solid colour. These miniature bars effectively block horizontal light waves, allowing only vertical waves to pass through. This is probably better explained with a more visual method:

polarization

As most glare is carried on horizontal light waves, vertically polarised lenses are extremely effective at removing the effects of glare, improving your ability to see clearly on even the sunniest of days, whether you are out driving, cycling, working or relaxing on the beach.

polarised-road-example

All polarised lenses also come with UV400 protection as a standard, ensuring that your eyes are protected from the harmful effects of exposure to UV – essential for your holiday sunbathing sessions!

You can choose a polarised tint for your regular sunglasses, or even have polarised prescription sunglasses if desired – just remember that, like all sunglasses, they aren’t ideal for wearing indoors!

At Lichfield Street Opticians, as well as offering polarised tints as an option for your prescription lenses, we also stock a range of Polaroid sunglasses. Polaroid – the company which invented polarised lenses, are recognised the world over as the definitive authority on polarised lenses and the technology behind these fashionable marvels.

P4102 C Filter Cat 3P4126 A Filter Cat 3

Jun 232012
 

hackett_sunspecs

One of the easiest ways to protect your eyes during the Summer months is by wearing sunglasses. These are glasses with heavily tinted lenses that filter the light before it enters your eyes, ensuring that you avoid many of the problems that can arise through exposure to strong light such as eyestrain, which can lead to headaches and migraines.

Sunglasses reduce glare, making them an effective choice for drivers to ensure that they can see the road at all times during the day and can help immensely when you find yourself in places where reflected sunlight means there is nowhere to turn to avoid a face full of glare – such as at the beach, where the sea and sand conspire to reflect the sun’s rays all over the place.

Looking at you

Modern sunglasses also have built-in UV filters that add extra protection for your eyes, which can help to avoid long-term damage such as cataracts. What’s more, most sunglasses are oversized compared to regular spectacles which offers additional benefits, such as shielding the thinner skin around your eyes (where you may not normally apply sunblock) and your eyelids from UV damage, as well as acting as a portable ‘windshield’ for your eyes, protecting them from the elements and wind-borne dust and debris.

Many models can also support your prescription – meaning they will also function as normal glasses when out and about. Please note however, that not all designer sunglasses will support all prescriptions due to required lens designs – if in doubt, always check with your optician.

At Lichfield Street Opticians we stock a range of designer sunglasses from Ted Baker, Anna Sui, Converse and Polaroid. We also offer a budget range of quality sunspecs for just £10.

For more information on sunglasses and of the designer ranges offered by Lichfield Street Opticians, please feel free to check out our website here.

Anna Sui AS814 113The Close Talker - TortoiseSienna 1174 709

 

Sunglasses look great on just about anyone – so they are also make for amazing fashion accessories!

Jun 162012
 

Ultraviolet light is contained in sunlight and can be harmful to not only our skin but also our eyes. But what is UV and why should we protect ourselves from it’s effects?

UV From The Sun

What Is UV?

Ultraviolet light (UV) is a part of the light spectrum that is shorter than visible light. You cannot see it with your eyes, but it’s there. Although there are many man-made sources of UV, it is produced primarily by the Sun. This sunlight is our main source of vitamin D, which is required to build and maintain strong bones. But most people only need to spend a short amount of time in the sun to make the required amount of vitamin D – far less than the point of developing sunburn.

UV radiation is all around us and can be harmful to our bodies unless we take precautions. For example, as most of us already know, most skin cancers are caused by overexposure to UV from the sun or sunbeds, so when out in the sun we protect ourselves with things like sun creams and parasols. But what most people seldom realise is that our eyes are also highly susceptible to the effects of UV – in particular UVA and UVB rays – that may be factors in many eye conditions such as cataracts. You could also suffer damage to your retinas and cornea in certain environments.

Where am I most at risk of UV damage?

In the UK, UV levels are much lower than in hotter countries closer to the equator, however we are still at risk especially in the summer months. This risk is at its highest at noon in on the hottest days. UV tends to be much higher where there are more reflective surfaces such as sand and water, so protecting your eyes while at the beach, fishing, boating or on holiday is a must. Snow also intensifies the amount of reflected UV light, so good protection is needed in Alpine holiday destinations. It should be noted that there is also higher risk of UV during the winter – especially after snowfall.

CFUV sun1

So how do we protect our eyes from UV?

We cannot just blank out light from entering our eyes. After all, it’s how we see. But there are ways to filter out harmful UV rays before they enter the eye. Over the next few days we will be showing some of the options that are open to you, to ensure that you are fully prepared for the heated highs of summer!

Jun 122012
 

Summer

Summer is here and with it comes good times – holidays, the beach, tans, ice cream aplenty – all round great fun. But with increased sunlight comes increased risks. We all know that sunlight carries harmful ultraviolet (UV) rays and we all know that UV can be bad news for your skin. So to avoid conditions like sunburn or worse, we spend hundreds of pounds on skin cream products and sun block.

But UV doesn’t affect only your skin – your eyes are also at risk of various conditions that can arise from the damage caused by UV – from corneal flash burns ‘snow blindness’ and is the main cause of cataracts.

Luckily, protecting your eyes and preventing damage caused by the summer months can actually be very simple – by adjusting the simple things in life, such as changing your diet to include more leafy greens, or to look into buying UV-filtered glasses – whether through clear coatings such as Crizal UV, sunglasses, polarised lenses, Transitions or clip-on shades for your existing glasses.

There are also options for your children – who spend more time outdoors and would therefore benefit more from UV protection and sunglasses.

This month, as we spin ever closer to the hottest time of the year, when your eyes are particularly vulnerable, we will look at the options open to you in terms of caring for yours and your family’s eyes during the bright rays of Summer. JH