Diopter Post List2017-05-03T05:54:04+00:00

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).    

High Myopia Measuring Tool: Nate Tweaks The Diopter Tape

Our darling Facebook group gets the occasional brilliant post. Or maybe it's quite a few, though it does get its fair share of repeating newbie questions.  Pro tip:  If you want to make it into the group, answer all the join questions - I've been getting quite strict about not letting riff-raff into the group, lately. Here's Nate's high diopter tape tweak: Psychology might matter. To download your own (free) diopter ruler, courtesy of uncle Jake, or various awesome eye [...]

By |Focal Planes, How To's|

Pro Topic: Managing Your Maximum Diopter Gap

Diopter Gap: Number of diopters between your differential and normalized correction. This one falls squarely into advance topics. For most people, choosing a differential based on ergonomically comfortable close-up distance from a computer screen, and a differential based on about 20/30 on a Snellen chart, results in a diopter gap of around 1.5 diopters.   Lots of factors can play into the individual diopter gap. Anything from accommodation range (age), ambient lighting, alternate close-up distances, preferences for distance vision diopter [...]

By |Focal Planes, How To's|

Newbies! Stop Reducing Too Much

There are a few recurring themes with kittehs getting started with getting that lens monkey off their back (or ... nose). The most recurring one is, newbies reducing too many diopters all at once. I get five billion e-mails and messages, all asking this same question.  Hey, Jake.  Is it ok if I reduce my diopters by ... half?  Hey Jake, I'm -5. How about if I go to -3.  Would that be ok, Jake?  Hmmm?  What do you think [...]

By |Focal Planes, How To's, Video|

Long Term Uncorrected Low Myopia Blur Adaptation

Pro topic. You may have low myopia (below 2 diopters) and simply never started wearing glasses.  While in principle this is a smart move towards protecting your distance vision from lens-induced myopia, it doesn't alone address your existing myopia degree. It also creates an issue of habituated blur, something you'll have to address before being able to make meaningful progress in eliminating the low degree myopia. A question on this topic from the BackTo20/20 support forum: Smart self assessment. Here's [...]

By |Focal Planes, How To's, Low Myopia|

Q&A: Can I Reduce More Diopters For More Gains?

Generally speaking, you can reduce by 0.50 diopters - but quite likely you shouldn’t. In some cases (high myopia) it can make sense to do so – see here a more detailed breakdown. But then also reducing diopters more just means that you’re reducing your distance to blur.  Seen clearly less far doesn’t really improve your vision at all – so does it make sense to make your diopter bubble smaller by half diopter? Stimulus is key to improvement.  Blur [...]

By |Focal Planes, Q&A, Video|