Vision Is a Nervous System Process—Not a Lens Problem

Vision Is a Nervous System Process—Not a Lens Problem

0:00 Dec 31, 2025
About this episode
Sam Berne (00:00.088) I’d like to welcome you to Facebook live tonight. We’re going to go about 25 minutes, maybe a little longer. We’ll see how the questions are going. So I’d like to welcome everybody. I’ve been off for a few weeks, but it’s great to be back on. So if you’ve got questions, you feel free to type them in. Hopefully I’ll get to see them and I want to start off with a couple of announcements. First of all, I’m going to be teaching. A two hour class on April 30th. It’s a Saturday and it will be from 10 AM to 12 noon Mountain Time. It’s one of my classes that people love because it’s going to be on. Well, a lot of different ways to improve your vision through color therapy, aroma therapy. We’re going to. do some eye exercises and I’m going to teach you how to negotiate a healthy prescription of contact lenses or glasses with your eye doctor. That’s always a challenge, especially if you want to improve your vision. There are ways that you can talk to your doctor so that you can get what you need. I’m going to take a couple of questions that people have emailed me and then if we get any questions from from the audience, I’m happy to answer those as well. So the first question that I’m getting tonight is one that I get a lot. It’s on mono vision. And what do I think of mono vision? This is with contact lenses and you know, what are the alternatives if I don’t? like mono vision. So for those of you who don’t know what mono vision is, this is a prescription where the doctor is correcting one eye for distance and one eye for near. If you look at my hands right now, this is kind of the setup. So my right eye is the distance. I my left eye is the near eye. You can see that there is a Sam Berne (02:24.297) a change in the focal distance between your eyes. This actually sets up a couple of scenarios. One scenario is double vision because your focal lengths are different between your two eyes. Let’s say your right eye is corrected for distance and your left eye is corrected for near. What this means is that when you’re driving Your left eye because it’s corrected for near is not engaging with the right eye. So a lot of times the brain shuts off the the eye that you’re not using and this is very disturbing because you’re now you’re now eliminating or at the very least reducing the the integration between your two eyes. So the brain suppresses or shuts off the left eye because it’s the right eye. That’s the driving eye and that the same token if you’re using the computer or reading it’s your left eye that’s carrying the load and the right eye is focused somewhere out at 20 feet, but it can’t come into a near focus. So again, the brain is suppressing the right eye so it reduces or in fact even eliminates the potential of binocular vision. This is disturbing because over time each eye is carrying more of the load than it should be and this can lead to eye strain eye fatigue and
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