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).
(Another) DIY Diopter Measuring Tool
This post is if you, if you're looking to make your own diopter measuring tool. Of course first there is the whole topic of centimeters and diopters covered in various posts in the lens and diopter blog category. And also of course with endmyopia being by far the largest and most comprehensive science based vision improvement resource online, readers and students have created various similar forms of diopter measuring tools. Adding to the list is this DIY solution, posted by Charleen: [...]
Taking New (Lowered Diopter) Glasses On Vacation?
If you're about to have a vacation coming up, and about to be ready for reduced normalized glasses, this article is for you! Discussion courtesy of the BackTo20/20 forum, and David: And centimeter gains! My comments: Familiar environments during focal plane changes, good idea. As with most things here it makes perfect sense once you know. Make it easy for your visual cortex to sort out a focal plane change, by not also changing your visual environment at the same [...]
Glasses vs. Contact Lenses: The Correct Focal Plane
Are your contact lenses and glasses the same exact (relative) correction? They better be! Focal planes are the key to all things myopia. Your eye being a dynamic system, constantly adjusting to seek ideal eyesight, uses focal plane feedback to calibrate itself. This aspect of our biology is elegant and so complex that we barely begin to scratch the surface on how it works. And yet ... we go monkey around with artificial focal plane changes, like it's no [...]
(Q&A) High Astigmatism, Low Myopia – Sph. To Cyl. Ratio Control
This Q&A, applicable if you have spherical correction at or below cylinder correction (high cyl to spherical ratio). A repost here from two BackTo20/20 support forum threads. While I only provide case specific support in the forum, you might be able to come to your own relevant conclusions based on reviewing these scenarios. Not sure if my mesurments are very accurate. Having a hard time telling where the actual blur starts. Think this is the astigmatism. For example this [...]
A Complicated Differential Glasses Reduction Scenario (Pro Topic)
Pro topic. Don't go monkeying around with diopters until you really know what you're doing. Messing around with diopter ratio, making focal plane changes, all creates a series of interactions with your visual cortex. If you don't know what you're doing you might at minimum cause unnecessary discomfort - or more negatively, impact your opportunities for future progress. Quick post today, with just part of a BackTo20/20 forum thread. This one highlights how changes (improvements) in your vision that may [...]
Q&A: Sniper Stare, Medium Distance Focal Plane, & More
Q&A for those with low myopia and advanced level endmyopia students. There's a brilliant thread in the support forum right now (many brilliant threads, but this one really gets me). If you're in BackTo20/20, or even if you're going DIY with just the blog, you might love this one, too. Todd has been keeping his progress all in one thread, reducing astigmatism, working on equalizing, and running through an interesting scenario of travel and home-habits time. He's right at [...]