Normalized reduce the blur horizon by just enough to give good stimulus, but definitely not enough to make the world significantly blurry. A good pair of normalized allow the wearer to continue their daily activities without any difference for the most part - an exception may be night time driving, in which a higher correction is a very good choice. (Always ensure your eyesight meets the minimum legal requirement while driving.) Normalized induce a small amount of myopic defocus, which has been shown to reduce axial length in a clinical study.
How do I reduce normalized for the first time?
When you're starting out with EndMyopia, you will likely have a lot of ciliary spasm and eye strain. Lucky you! This means your early rate of improvement will be staggeringly high, before it plateaus and you enter the long game of much slower improvements.
The golden rule with all of EndMyopia: don't reduce too quickly. It is recommended that you reduce no more than 0.25 diopters from correction you can see 20/20 with. This gives plenty of good stimulus and blur challenge for the majority of moderate myopes. If your myopia is higher (7 diopter+), you may consider doing a 0.5 reduction. But in general there are no benefits to reducing more quickly, and most of the time reducing too quickly will lead to problems than faster progress. Take your time!
Jake recommends starting with differentials, and using normalized 4–6 weeks later after starting differentials. In general, never reduce more than 1 diopter for your first pair of normalized, from the correction you were using before EndMyopia. In the early stages of vision improvement, your goal will be to find Active Focus, and correcting your distance vision habits so that you can get the stimulus you need to improve your eyesight.
- Read, Scott A.; Collins, Michael J.; Sander, Beata P. (December 2010). "Human Optical Axial Length and Defocus". Investigative Ophthalmology & Visual Science.
- The EndMyopia Blog, https://endmyopia.org/pro-topic-differential-now-normalized-in-4-6-weeks/