![]() There is a great resource if you want to get more into the mathematical part of designing progressive lenses by Werner Koeppen. Compared to that hard progressive lens designs gives you wider clear zones but then the distortions will be more noticeable as you perform eye moments into the periphery. The image just gets a little blurrier but with a slight increase the more you look into the sides. When the periphery is designed with a soft design (which most progressive lens designs have today) the distortions of the lens are slightly noticeable as you perform eye movements into the periphery. This design was one of the first to adopt the freeform technology to provide the wearer natural vision by large viewing zones in combination with a soft periphery. The Varilux Comfort Design has been on the market for a while as has been updated to newer standards over the years. As the Add value increases most people will benefit from it. Maybe you just have standard parameters in your face and then of course you would not benefit from the 360 feature. And if he says something like “yeah your eyes are a little bit more apart as the average value would be” (of 32mm on each side) then just order the 360 feature with my recommendation and you will be fine. Just ask your optician if one of the parameters is out of place. And to not get the result on the left side here above with the standard set of parameters. How far is each pupil away from the middle of your nose, where is your eye rotation center how big is the tilt of the frame in your face, and a few things more… With all the information the blue zones on the lens can be best distributed for you individually to have the widest field of view. Varilux lenses do this with a customization of your parameters on how the glasses sit in your face. ![]() In the upper half of the lens, you will find the prescription for distance vision and in the lower middle, you will find the reading part. Blue stands for clear vision, green is a little bit blurry and in the red and yellow zones, there is just blurriness. Here in the pictures, you can see different colors that represent your visual acuity as you look through your lenses. The picture shows a high-end Variulux lens on the right and another Varilux lens that does not have the 360 feature. The mentioned 360 feature in combination with a higher-end lens makes definitely also sense when your prescription is quite high and your Add Value is lower (like +1,25) than with a prescription of +/-6D you would still get distortions in the periphery and the 360 package fights these effectively. Most lenses can have that feature except for the Varilux Road Pilot and some lower-priced or specialized models which we will go down into detail later. It is basically a way to customize the lenses to your needs. And so does the reading zones in your Varilux lenses as you order the 360 packages with it. When looking at different faces you will notice the pupilar distances vary. Just looking at your needed Add value to give you the recommendation to choose a Varilux lens design would be a little dull. Because as time passes you will need more support from your progressive lenses and what happens is the zone for reading gets smaller with every 0,25D you go up.įrankly spoken it gets more expensive as we move to the right of the Varilux lenses table. So the reason really is to optimize the lenses (go to the right) the more reading power you need. And with the reading power increases the distortions in the Varilux lenses that bring you blurriness in the sides. And as you move down the rows your reading power increases. The reason is the more you move right in the columns the more advanced is the lens technology. Add ValueĪs you can see in this chart I gave you some recommendations based on the Add value (reading power) on which Varilux model to choose. In this article, you get an in-depth explanation of what to do and why to do it. When this happens it is wise to go up in lens quality. As you progress in age your needs in your Varilux lenses change because you need more reading power.
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