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What are bifocals? Blue Light Glasses

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What are bifocals? Blue Light Glasses

When we get to our forties the cilary muscle that controls our crystalline lens weakens which results in our lens having difficulty focusing on objects up close.  This is something that happens to everyone regardless of whether they are habitual glasses wearers but the age at which it occurs can vary.  Its results in a person having two different prescriptions, one for distance (which could be zero prescription power) and one for reading.  One option is to get one pair of glasses for distance and one pair for reading. The problem with this option is that whilst the reading glasses...

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How to clean your lenses - Blue light glasses

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How to clean your lenses - Blue light glasses

Looking after your lenses is very important and often neglected job as a glasses wearer.  Its important to prevent glare as light with reflect of the scratches causing glare and can be particularly troublesome whilst driving from oncoming headlights.  It can also be a nuisance when using a computer screen as the light from the computer screen will cause glare when reflecting off the scratch.  The location of the scratch will have a big impact as to whether you notice any visual disturbances as a very central scratch will obviously be much more noticeable that one in the periphery.  Apart...

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Polarised Lenses - Are they worth it - Blue light glasses

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Polarised Lenses - Are they worth it - Blue light glasses The big advantages of polarised lenses over tinted lenses is that the polarised lenses block UV and glare from all angles.  This is most noticeable to the user in activities such as fishing and skiing where the suns rays bounce off the water and snow and hit the eye at different angles.  It is also useful for drivers where the sun for example might bounce off a puddle of water in the road.  Fishermen and anglers find them extremely useful as they can see much further through the water...

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Fog on your glasses lenses - Blue Light Glasses

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Fog on your glasses lenses - Blue Light Glasses We have all experienced this, you walk from the cold street into a warm cafe and suddenly your glasses fog up.  I can be very annoying and inconvenient especially if you don't have a cloth to hand. So why does this happen and how can we prevent it.  It is caused by condensation, when water vapour in the air hits a cold surface (the lenses) it causes the vapour to cool and turn into a liquid film on your lens.  The same can occur with your breath when going from cold...

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Cataracts - Blue Light Glasses

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Cataracts - Blue Light Glasses. Cataracts are clouding of the eyes crystalline lens which can occur overtime as part of the aging process, due to trauma or due to excessive exposure to UV.  Lens opacities often begin in the 40's and 50's but generally don't cause disturbance to vision until the sixth and 7th decade of life.   Symptoms include * cloudiness of vision * sensitivity to glare and light * increasing difficulty with night time vision Customers with catatacts who are purchasing prescription glasses online are recommended to choose an anti reflective coating on their lenses to help reduce...

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