Diopters. We stopped calling glasses “prescriptions” a while back, since we don’t believe a reasonable educated individual needs a so-called professional to tell them which piece of clear, curved piece of plastic to buy. (or conversely, keep you from making your own diopter choices)
If anything, we believe that most of the mainstream will give you more diopters than you need, causing progressive myopia and all sorts of long term risky side effects. We feel strongly about education you on the subject of testing your own refraction, of making your own diopter choices. Glasses are far less dangerous than lots of over-the-counter drugs! Read this section for all things related to diopters, learn about the fascinating world of bending light (to your will).
Shannon Asks: Should I Reduce By 0.25 Or Can I Go Down By 0.50 Diopters?
The forum is full of good insights, though spread out over a few thousand posts.Every so often I'll try to remember to pick good ones out for you here in the blog. Make a few things easier to find.Shannon asks:I remember reading somewhere int he course or site that those with high myopia can do 0.5 reductions to save money on glasses etc.. I was just wondering – is it always preferable to move in 0.25 increments or is it [...]
What’s Best For Your Glasses? CR-39 vs. Polycarbonate Lenses
Here's an article worth reading, if you are shopping for lenses.The Polycarbonate Sales PitchThinner, lighter, 10x more shatterproof.These and other virtues of polycarbonate lenses are extolled by your optician, when you are shopping for new glasses.Odds are that you have no idea about lens materials. And why should you? Unfortunately, there are more than a few opticians who don't actually know a whole lot about lens materials. Others may, but still want the larger profit margin that comes from selling [...]
Seeing Better With Contact Lenses vs. Glasses
There is a whole discussion going on here, about why you might see better with contact lenses than you do with glasses. Short answer, if you have high myopia, and don't have any problems with dry eyes, contact lenses might be for you. The rest of this is for those of you who are already in the whole program and familiar with normalized glasses and differential glasses prescriptions. Let's address the contact lens vs. glasses vision question for close-up. Here's [...]
Headaches: Why You Don’t Want To “Mix and Match” Prescriptions
You don't want to use any random pair of old glasses you have laying around, to start on a project of using lowered prescriptions. Things may not go perfectly, and you might not like the results!I'm going to use Alex' style for this post, referencing a recent forum post from Shannon.Hi – I am just starting out, and have put my Snellen in my office, so that I can look there every 20 minutes and assess my vision. I check [...]
Prescriptions Like Steroids – How Your Glasses Might Give You Unnatural Vision
Your optometrist is supposed to correct your vision deficiency. The goal should be for you to be able to see clearly at a distance. But how much correction are you actually given? And what does it do to you eyesight?---The optometry theory is that you should be able to see clearly at any distance. If your eyes work as they should, objects should just look smaller at greater distances, but never blurred. When you go to get an eye exam, [...]
Johnny: Working Out Double Vision & Astigmatism Reduction
Johnny writes in the forum, volunteering time to update us about his challenges with double vision, too much prescription reduction, and his astigmatism correction. If you have astigmatism, or double vision experiences, this is well worth the read: Hi everyone Time for an update! There’s been a lot going on so this might be a long post… Its been an interesting (and tough!) couple of months. I have again learnt a lot and I hope in sharing my experiences with [...]