Questions & Answers. You have questions. And Jake has answers, especially if they haven’t been covered in one of the other sections of the blog / free guides.
Many of the topics here originate from your e-mails, or from Quora, or threads in our Facebook group, or even YouTube comments on occasion. Natural myopia control is a wide ranging and complex subject, and this might be the section to find answers to some of your questions. Browse and discover!
Astigmatism: The High Fructose Corn Syrup of the Vision Industry
If you missed the previous installment, click here: How Astigmatism is Measured. So we discussed why it is rather difficult to correctly measure astigmatism in a meaningful way. We figured out that the astigmatism correction in your lenses is probably not representative of any real vision deficiency you might have. The problem of course, is that the first time you got an astigmatism correction, it was probably not necessary (or accurate). Since then though, your eyes acclimated to that correction. The [...]
Do You Need High Index Lenses?
The index question comes up, every so often, in my e-mail and sometimes in the forum. There are several factors to consider, how much you want to spend on lenses. Always keep in mind that higher index = better optical quality (thinner lenses, less distortion) - and lower index, conversely, is always cheaper. First, there is the question of how often you will change your prescription: If this is your first ever prescription change, you may want to keep things [...]
Retinal Detachment Risks
Before it gets lost in the back pages of forum topics, let's bring a particular post about retinal detachment risks to the blog. Retinal detachment risks can be considerable for high myopes. It doesn't begin to make it on the radar of things to worry about until you are in the double digits with myopia (which you never should be, under any circumstances, with just basic preventative steps). If you have more than a -10 diopter correction, use it daily [...]
How Is Astigmatism Measured, And Why Is It Flawed?
If you missed the first installment of the Astigmatism Guide, see it here. There are three frequently used ways to measure astigmatism. The type of measurement you are likely to get, depends on the kind of facility you visit for the measurement. Most myopia prescriptions originate from optic shops. If you want to know why I hold this particular type of 'medical facility' in some measure of contempt, take a look at this post. Let's take a look at the [...]
Success Stories: Reversing High Myopia
Samson posts an update of his vision improvement progress in the forum: My name’s Samson and I’m 20 this year. It’s my first time posting here so I thought I’d share my experiences so far! About 3 months ago, I had -7.75 diopters of myopia and -7 diopters in my right, according to the centimeter calculator. I stopped wearing my glasses about 3 years ago (it was -9 for my left and -8.5 for my right, probably insanely overpowered) after [...]
Do Glasses Create Myopia? Look at this Monkey Study
For those of you who are interested in studies of the significant myopia-inducing effects of minus lenses on the eye take a look a this abstract. This is from the IOVS (Investigative Ophthalmology and Visual Science), an ARVO journal. ** If you enjoy this post, "like" it on Facebook, help me spread vision health knowledge! A quick excerpt: Methods. Starting at 3 weeks of age, eight infant monkeys were reared wearing −3 diopter (D) spectacle lenses over one eye that produced [...]