Frequently Asked Questions/Normalized

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What are normalized?

Main article: Normalized

Normalized glasses are slightly undercorrected for distance vision, usually no more than 0.25 diopters. They are combined with Active Focus and distance vision to improve eyesight.

How do I reduce normalized?

See Guide:Reducing normalized.

From the blog: reducing normalized

When should I reduce normalized?

Jake says:
James asks in the forum:

I was wondering when the best time to reduce the normalized prescription is. I feel like with past reductions I may have done them earlier than necessary, resulting in less enjoyable vision and slower progress. I think I heard from the blog or forum that when you can see 20/20 consistently for two full weeks it is a good time to reduce. Is this the case? If so, is this 20/20 in outdoor light, 1000 lux, or a more typical 200 lux scenario?

Here’s what I tell James, and a good set of guidelines for you:

What tends to work well is to reduce after you reach the same acuity as with your previous prescription. Ideally you’d wait a while before changing from there (a few weeks at least). So if you set yourself 20/20 in indoor light as your comfortable baseline, you’d change again a few weeks after you hit 20/20 with the new normalized.

The rationale here is that you have your own blur horizon distance preference. Some like 20/50 indoor, some are more comfortable with a 20/30, for example.

Initial reductions are a bit more volatile, since you initially tend to start with an overprescription, and your first normalized just brings you down to 20/20 or 20/30. Eventually, for most, an indoor 20/50 works well (since it translates to an outdoor 20/30 or better). But once you are in a groove of reductions, changing when you hit the target Snellen line works well.

Another caveat is plateaus. IF you find yourself not ready after 4 months on the same prescription, sometimes forcing the next 0.25 bump can help restart stimulus (though that one, check with me first).

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