Help with your Lens Options Here at internetspecs.co.uk, we have kept our lens options simple and sometimes FREE. Because of their high overheads, high street opticians need to charge you a lot for both frames and lenses. Online opticians will often make high profits on just the lenses. We have chosen to do neither! Our overheads are not high so there is no need to have our prices high - good for you!• We have FREE Clean & Clear 1.6 Thin & Lightweight Anti- Reflection (AR) Lenses for all of our prescription glasses* (Single Vision only). These lenses will be noticeably thinner and lighter than standard 1.5 or 1.56 lenses. (You may have noticed that our Cylinder (CYL) drop-down forms opposite for the left and right eyes only go up to -2.00. However, for our 1.6 lenses, if you have a negative Sphere (SPH) reading, we are still able to supply, for free, CYL's higher than -2.00, up to -4.00. You won't be able to input this onto our forms so please either upload a copy of your prescription to us or tell us in the 'Any Additional Information' form).• Our Clean & Clear 1.67 Extra-Thin Anti-Reflection (AR) Lenses (at just £22 extra) are even thinner and more lightweight than our free 1.6 lenses. They are great for any prescription but are particularly good for those who have a high prescription (sphere (SPH) reading above +/- 2). Our 1.67 lenses are always Aspheric. Aspheric lenses allow the lenses to be made thinner and flatter. (You may have noticed that our Cylinder (CYL) drop-down forms opposite for the left and right eyes only go up to -2.00. However, for our 1.67 lenses, if you have a negative Sphere (SPH) reading, we are still able to supply, for no extra cost, CYL's higher than -2.00, up to -4.00. You won't be able to input this onto our forms so please either upload a copy of your prescription to us or tell us in the 'Any Additional Information' form). • Our Clean & Clear 1.74 Ultra-Thin Anti-Reflection (AR) lenses are the thinnest and most lightweight plastic lenses available and cost just £75 extra. They are only available from us if you have a negative prescription (the Sphere (SPH) reading). We recommend choosing a 1.74 lens if your prescription is higher than -4.50 for the Sphere (SPH) reading (i.e: from -4.50 to -8). Our 1.74 AR lenses are also Aspheric which contributes to the lenses being thinner and flatter.• Please select 'Frame Only' if you just require the glasses frame. These will be posted to you with 'dummy' (low quality plastic) lenses that you can easily take out (we do not recommend wearing glasses with dummy lenses).• Our 1.5 & 1.6 Transition® lenses (known as 'Photochromatic Lenses' and available in either grey, brown or green), change colour in sunlight, meaning that you can use them during the day or at night. They are temperature dependent, darkening better in colder climates such as Northern Europe (in snowy conditions, they become extra dark, due to the intense ultraviolet light). Transitions® need ultraviolet rays from daylight to darken, meaning they're not always suitable for behind a car windscreen (our Polarised lenses are good during sunny driving conditions - please see below). The lenses without anti-reflection AR coating are darker in sunny conditions, whereas with anti-reflection AR coating, they are better inside and at night because they are lighter in colour. The thin 1.6 Transition® lenses come with an AR coating. The higher lens index value (1.6) causes reflections to increase. Having an AR coating helps to eliminate this.• Our Blue Protect lenses help to filter out blue light rays that can be found in artificial light sources such as mobile phones and tablets. There's been research showing that too many blue light rays could disrupt our internal body clock that controls our sleeping and waking cycles. BluProtect comes in standard 1.5 thickness lenses and thin & lightweight 1.6 lenses.
• Our 1.59 AR Polycarbonate lenses are good for sport as they are tougher than normal lenses. They're know as 'plastic aluminium' - weight for weight, they're four times the strength of aluminium - the material is used for riot shields. Because they're 1.59, they're also thin lenses. Please note: Our grey, brown and green 1.5 Transitions®, our green 1.6 Transitions® and our 1.59 Polycarbonate lenses have a more limited prescription range than we have for all our other lenses. Certain prescriptions will require more expensive 'surfaced' lenses. If this is the case for you, we will contact you very soon after you place your order to ask if you wish to pay the extra cost for 'surfaced' lenses or, in the case of the 1.5 Transition® lenses, if you wish to upgrade to 1.6 Transitions® in either grey or brown, or if you wish to change or cancel your order.• Our 1.53 AR Trivex lenses are impact resistant. They are just as strong as Polycarbonate lenses but are even more lightweight and have slightly sharper vision, although Trivex lenses aren't as thin as the 1.59 Polycarbonate lenses are.• Our 1.5 Polarised sun lenses are tinted and eliminate glare, offering 100% protection from harmful UV rays. They're ideal for those sunny sunrises and sunsets when you can be 'blinded' by the sun, even while wearing 'normal' sunglasses. Polarised lenses must not be worn while driving at night. They come in 3 different colours: grey, brown and green.• Our standard 1.5 Tinted Sun Lenses, our 1.5 Tinted Sun Anti-Reflection (AR) Lenses and our thin and lightweight 1.6 Tinted Sun Anti-Reflection (AR) Lenses are ‘fixed tint’ (they are always coloured and so are for day use only). They will absorb 85% of sunlight. They come in 3 different colours: brown, grey and green. Please note that our 1.5 Tinted Sun Lenses are not scratch-resistant. They are the only one of all the lenses that we sell on Internet Specs that are not scratch resistant (Our 1.5 Tinted Sun Anti Reflection (AR) lenses and our 1.6 Tinted Sun Anti-Reflection (AR) lenses are scratch- resistant). * Occasionally, for those with a low prescription (sphere (SPH) reading around Plano (0) to 2) selecting a pair of semi-rimless (supra) glasses, we may have to use a special 'surfaced' lens to enable glazing to occur. Here is the technical bit! - for semi-rimless glasses, the edges of the lenses have to be thick enough to allow a groove to be cut to hold the nylon thread. On occasion, a 1.6 lens will be just too thin. Please be assured that we'll contact you before we do this to make sure you're happy with us using a special 'surfaced' lens. We may need to ask for an additional payment for this.* In the instance that you have a positive (+) prescription sphere (SPH) reading, you have a small pupillary distance measurement and you choose a wide frame, we may have to use a special lens (known as a ‘surfaced’ lens) to get the centre of the lens in the correct place. If this occurs for you, we will need to ask you for an additional payment. Please be assured that if this case arises for you, we will contact you soon after you place your order to ask if you wish to pay for the special lenses or if you wish to change or cancel your order.
On your prescription, abbreviations will more than likely be used:
• ‘L’ will refer to your ‘Left Eye’ • ‘SPH’ will refer to ‘SPHERE’ • ‘CYL’ will refer to ‘CYLINDER’ • ‘ADD’ or ‘NEAR’ refers to ‘NEAR ADDITION’
Upload a Scan or a Photo of your prescription to us using the form opposite or Email (through our ‘Contact Us’ page) or Post it to us (address found on our ‘Contact Us’ page). OR, if you need ANY CLARIFICATION, you can callus on: +44 (0)1908 965985
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Tel: +44 (0)1908 965985
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