Save Money With Replacement Lenses
Save Money With Replacement Lenses
Following your eye test your optician is legally obliged to provide you with your prescription. Some people choose a new frame, others upgrade to a designer look but, as you may have discovered already, both options can prove very expensive. The answer might be to get replacement lenses fitted into your existing frames.
Designer Frames and Replacement Lenses
First, it’s important to remember why you chose your existing frames. Was it because of comfort, style, feel and price? If so, why struggle all over again when you can keep what you already know and like.
Second, is the overall cost? It makes no difference if you go for the latest designer or a standard frame. Both can cost you anything from £45 up to £327 depending on brand plus the cost of your lenses on top.
Why waste money on constantly changing designer frames? It’s a fact that designer eyewear is a fashion item often driven by time sensitive marketing. For this reason unsold stock can remain on display after the campaign and sit around for weeks and sometimes months before somebody buys it. The only way you’ll ever know is to ask how old the frame is.
Play safe, and use your existing frame which looks good and feels comfortable. Simply replace the lenses, it saves you a significant amount of money and you get to keep your favourite frames.
Replacement Lenses and CR-39
Do Designer Glasses Have Special Lenses?, NO. Regardless of frame cost, your new Replacement Lenses will almost certainly be manufactured from a plastic called Columbian resin or CR- 39 as its known although there are other materials around, the CR39 is the more common.
The name CR-39 was a result of the 39th formula of a thermosetting plastic developed during world war II by PPG Industries a global supplier of products with headquarters in Pittsburgh, Pennsylvania. In the 1940s PPG Industries, converted much of its production into materials for military use and developed synthetic resins that lead to plastics.
The company had a vision for its future and patented CR-39 before creating a successful line of optical products to include transitions lenses and photochromic ophthalmic plastic eyewear.
Long Sight and Short Sight Replacement Lenses
Your Replacement Lenses depend on your prescription, whether they are for long sight or your short sight correction, the visual acuity which is your ability to read a standard size letter at a testing distance of 20 feet or 6 meters. For example a person with 20/20 vision has the ability to read a black letter inside a block 8.73 mm high by 4.38mm wide on a white background at a distance of 20 feet.
However, a person is deemed to have short sight who can focus on an object at arms length but is unable to focus on the black letter 20 feet away, will need correction of the long site by way of “minus” ( – ) corrective lenses, these lenses are thicker at the edges than the middle.
Similarly, a person is deemed longsighted when they can focus the black letter inside the block 20 feet away but may struggle to focus on objects within arms length, would need “plus” (+) corrective lenses to correct their short sight, these lenses are thicker in the centre and thinner at the edge.
Obviously, as we approach 40 years of age, whether you have short site or are longsighted, reading small print could become difficult, to correct this you will need an additional prescription, this could be for a pair of reading glasses, or it can be placed at the bottom of a bifocal or a varifocal lens.
Short Sight Replacement Lenses
For short sighted individuals the stronger your prescription the thicker the edges of the lens will be, which means as most designer frames have a thin rim the thick lens edges can detract from the overall appearance of your eyewear. Consequently, to reduce the edge thickness you may need to consider the more expensive “high-index” plastic lens materials that allow the lens to be produced with a slightly thinner edge, depending on your latest prescription.
Another solution to keep the lens edge as thin as possible is to select frames that are smaller, the edge will be thinner by virtue of the curvature of the lens. Alternatively, another option is to consider Rimless Glasses.
Short Sight and Rimless Replacement Lenses
When you are short sighted and need significant correction for your longsight, high-index lenses can still be a problem on thin frames where the replacement lenses may protrude either side of the rim. However, by using Rimless Glasses these look more appealing and modern and by that fact that they are frameless give the impression that your Replacement Lenses are thinner and the glasses have a much neater and cleaner look.
Advantages of High-Index over Standard Replacement Lenses
High index plastic lenses are thinner both for longsighted and short sighted wearers. This is because of the ability of a high index lens to bend light more efficiently than a standard lens, so a thinner lens profile can be used.
The amount required to correct your vision is written on your optical prescription. Your prescription consists of numbers called dioptres. A mild long sighted person who sees clearly in the distance and struggles to see properly within arms length will need a “plus” (+) lens which might be written + 1.50. The lens profile looks thick in the centre and thin on the edge.
A short sighted person who struggles to focus on distance objects and can focus on objects within arms length will have a minus ( – ) lens perhaps written -1.50 so the lens profile looks thin in the centre and thick on the edge.
High Index plastic lenses are growing in popularity as the optical properties of the material used is now approaching those of high index glass and are safer, as the resin used for high index plastic lenses seldom shatters, unlike glass which means a plastic lens is safer.
Replacement Lenses Are Cheaper Online
As the production of high index plastic lenses is increasing to satisfy their popularity, the cost savings through mass production are being passed on to consumers to enjoy more favourable deals, particularly from retailers online with fewer overheads.
Prices vary so much, particularly a varifocal lens which can cost anything from £70 to £570, where three prescriptions for distance, mid and reading are placed on one lens improving visual performance and noted as a rule of thumb, that the more expensive varifocals have the wider field of view of each prescription range.
Perhaps your toughest challenge in today’s online optical market may be “who can I trust?”
One select retailer online supplying a quality product is providing valuable information for Replacement Lenses, with a clear pricing table that shows you exactly what you get with no hidden extras such as coatings unlike some.
The retailer is well respected with over 20 years experience within the optical profession and retail arena. This knowledge together with a global online brand brings this new service to the masses, supplying optimum precision quality lenses with great customer service and great feedback (See Reviews), very competitive pricing and simplified 60 Second ordering.