Your Eyesight Is Perfect. Your Vision Might Be Failing You.
“If you cannot control your eyes and their ability to focus, you cannot control your mind and its ability to focus.” — Dr. Bryce Appelbaum
The Genius Life on Vision: How to Preserve and Enhance Vision for Better Brain and Mental Health
Neuro-optometrist Dr. Bryce Appelbaum joins Max Lugavere on The Genius Life and ends up screening Max LIVE on camera. What they find changes the entire conversation about reading fatigue, focus struggles, and what your eyes actually reveal about your brain.
Watch the episode below or read on to find out just how much your vision could be impacting every area of your life.
You Didn’t Fail the Eye Test. The Eye Test Failed You.
There’s a specific kind of reader who reaches the bottom of a page and realizes they absorbed none of it.
They’ve reread the same paragraph three times. Their mind drifted mid-sentence to something else entirely. And for most of their life, they’ve chalked it up to some version of how their brain is wired.
It turns out there may be a very different explanation. And it takes about 30 seconds and a coffee straw to find out.
In a recent appearance on The Genius Life with Max Lugavere, Dr. Bryce Appelbaum set out to deliver a masterclass on vision and brain health. What neither of them expected was for the host to become a live case study as Max found out, on camera, that he had been running with a hidden functional vision problem his entire life.
What happened next is worth reading closely, especially if you’ve ever suspected that your brain works harder than it should just to get through a normal day.
What Is Functional Vision And Why Is It Different From Eyesight?
Functional vision is how your brain processes and acts on everything coming through your eyes such as tracking, teaming, converging, and making sense of three-dimensional space. It’s not the same as eyesight, which is simply whether light focuses clearly on the back of your eye.
You can have 20/20 eyesight and a significant functional vision problem at the same time and the standard eye exam won’t catch it.
Eyesight and Vision Are Not the Same Thing
At some point in the conversation, Max mentioned that his eyesight has always been excellent — better than 20/20, in fact. Dr. Appelbaum stopped him immediately.
“20/20 eyesight,” he corrected. Not 20/20 vision.
For most people, that correction sounds like a technicality. It isn’t.
Eyesight is the ability to see clearly. Letters on an eye chart. Street signs. What the teacher wrote on the board. Eyesight is what a standard exam measures. It’s what glasses and contacts correct. It’s a single, narrow measure of whether light is focusing accurately on your retina.
Vision is something else entirely.
Vision is how your brain filters, organizes, and processes everything coming in through your eyes, so it can make meaning, direct attention, guide movement, and navigate the world. It includes how your eyes track, converge, maintain focus over time, process depth, coordinate with your balance system, and integrate with your attention and spatial awareness systems. Vision is a brain function. And the standard eye exam doesn’t evaluate most of it.
This means you can have 20/20 eyesight and a significant functional vision problem simultaneously. And most people living with that problem have been told, repeatedly, that their eyes are completely fine.
Dr. Appelbaum frames it this way: eyesight is the symptom. Vision is the system behind it. A standard eye exam addresses the symptom. Neuro-optometry addresses the system.
The Straw Test That Exposed What 20+ Years of Eye Exams Missed
Midway through the conversation, Dr. Appelbaum borrowed Max’s iced coffee straw and ran a 30-second convergence screen.
He asked Max to follow the tip of the straw as it moved slowly toward his face. He watched Max’s eyes. Within three seconds, he had his answer.
Past midline, Max’s left eye started jumping, losing the target, struggling to follow smoothly. As the straw moved closer, instability increased. Max was seeing multiple straws simultaneously.
Dr. Appelbaum broke down what was happening.
“When you look at something close, your brain directs both eyes to point at the same target, which is two separate lines of sight converging on a single point. In a healthy visual system, those lines meet precisely. In Max’s case, they were pointing behind the target. His brain was compensating constantly: sometimes fusing the two mismatched images, sometimes suppressing input from one eye entirely to eliminate the confusion, sometimes splitting the difference and letting things blur.”
He’d been doing this his entire life. Every book. Every screen. Every face he tried to read across a table.
“You’re running uphill on ice skates wearing a box of bricks,”
Dr. Appelbaum told him.
“And you’re still getting up the mountain. Most people find something else to do.”
The reading fatigue. The mind-wandering mid-sentence. The instinct toward podcasts and audio over text. The gravitating toward topics he was obsessively interested in just to be able to follow the words at all. None of it was a character flaw. None of it was poor focus or low motivation. It was a struggling visual system expressing itself in the only language it has.
Why This Keeps Getting Diagnosed as ADHD and Why That Matters
Dr. Appelbaum makes a pointed claim about the current state of diagnosis: ADHD and dyslexia are incomplete diagnoses without first evaluating vision.
That’s not dismissing those diagnoses. It’s arguing that labels describe behaviors and behaviors have root causes. When the root cause is a functional vision problem, attaching a label doesn’t lead to the right treatment. And the child, or the adult, keeps struggling with the same symptoms indefinitely.
The overlap is striking. Research states that 15 of the 18 most common symptoms associated with ADHD are also symptoms of functional vision problems.
A child diagnosed with ADHD has three times the likelihood of having convergence insufficiency, which is the same teaming problem Dr. Appelbaum found in Max with a straw.
They’re twice as likely to have a lazy eye, and twice as likely to have uncorrected farsightedness or astigmatism.
For parents, this shows up as the child who loves being read to but fights reading on their own. The one who loses their place on the page, skips words, or tears up over homework. The one teachers describe as bright but unfocused, so much potential, doesn’t apply themselves.
The snowball effect that starts when they transition from learning to read, to reading to learn and suddenly every subject becomes a fight.
For adults, it shows up differently:
- High intelligence that never quite translated into grades.
- Compensatory strategies developed over years to work around something that was never named.
- An identity built partly around reading aversion and around strengths in speaking or listening or anything that doesn’t require sustained visual processing.
Dr. Appelbaum is direct: before the ADHD conversation, before the dyslexia conversation, before the medication conversation — vision needs to be the first variable evaluated. It rarely is. And there’s a shortage of practitioners who even know what to look for: in the DC/Maryland area, one of the most densely populated regions in the country for eye doctors, there are roughly seven board-certified neuro-optometrists. Two of them are in Dr. Appelbaum’s practice.
Learn more about how vision issues can mimic learning and attention disorders here.
Before the ADHD conversation, before the dyslexia conversation, before the medication conversation — vision needs to be the first variable evaluated.
Dr Bryce Appelbaum, OD, FOVDR
Neuro-Optometrist
What Your Eyes Reveal about Alzheimer’s Risk
This is a conversation that most vision discussions never reach and it’s one of the most important threads in the episode.
Vision loss, it turns out, is a modifiable risk factor for Alzheimer’s disease. This isn’t fringe research and Dr. Appelbaum explains exactly why it makes structural sense.
The eyes emerge from brain tissue in the first trimester. They are, literally, part of the brain. More areas of the brain are dedicated to processing vision than to all other senses combined. Two-thirds of the neurons entering the brain originate from the eyes. The idea that visual decline and cognitive decline are separate systems stops making sense when you understand the architecture.
What Dr. Appelbaum tracks clinically, before formal diagnosis, are changes in spatial orientation. A loved one who seems lost in space, confused about where they are or where other objects are in relation to them. Depth perception is quietly deteriorating. Difficulty assigning language to a symbol they recognize. These visual-spatial changes often precede everything else.
There’s also emerging research connecting specific protein deposits in the lens of the eye, proteins that mirror the beta-amyloid plaques that define Alzheimer’s brain pathology to the disease itself. And a specific layer of the retina that can be imaged on standard OCT equipment, where inclusion bodies appear in patterns that mirror changes seen in the Alzheimer’s brain.
The eye, Dr. Appelbaum argues, may be the earliest accessible window into what’s beginning to deteriorate in the brain, often visible years before any other symptom surfaces.
What protects the eyes protects the brain. What damages the brain shows up in the eyes first.
What You Eat Is Directly Shaping What You See
The conversation took a turn into nutrition and it’s one of the most actionable segments of the episode.
The nutritional framework for optimal eye health is nearly identical to the framework for brain health. Dr. Appelbaum doesn’t separate them.
Omega-3 Fatty Acids
Omega-3 fatty acids are foundational. They support the tear film, the retina, and the entire neural architecture connecting the eye to the brain. Cold water fatty fish like sardines, salmon, and mackerel are the most bioavailable source.
Antioxidants
Antioxidants are essential, particularly vitamins A, C, and E. The retina has among the highest concentration of mitochondria of any tissue in the body. Anything that creates oxidative stress whether poor diet, seed oils, chronic inflammation, or uncontrolled blood sugar hits the retina hard. Macular degeneration, Dr. Appelbaum points out, doesn’t appear overnight. It’s the result of decades of wrong inputs compounding quietly.
Lutein and Zeaxanthin
Lutein and zeaxanthin are the carotenoids most people have heard of and almost none consume adequately. Both concentrate specifically in the macula, which is the central retinal region responsible for sharp, detailed vision and in the brain itself. You cannot reliably get therapeutic amounts from diet alone unless you’re committed to a significant daily serving of dark leafy greens. Supplementation is necessary for most people.
Beware of These Foods for Your Vision
The list of what damages the visual system maps exactly onto what damages the brain:
- refined seed oils
- sugar
- highly processed foods
- alcohol
- gluten and dairy for those with inflammatory sensitivity
Dr. Appelbaum is blunt about it, you eat for your brain, you eat for your eyes. The same instructions govern both.
The baseline is simpler than most people make it: a diet built primarily around real, whole, minimally processed foods covers most of this by default. The nutrition conversation gets complicated in the margins. The foundation doesn’t. Eat real food. Protect the infrastructure
Curious if a functional evaluation could help you or your child?
We invite you to start with our quick self-check quiz or schedule a discovery call with our team to learn more about how MyVisionFirst can help.
Three Things You Can Start Doing Today
Dr. Appelbaum gave exercises for both eyesight and vision. Here are the three most immediately actionable.
Near-Far Focus — Eye Push-Ups
- Hold your thumb at arm's length, nail facing you.
- Bring it slowly toward your face until it begins to blur. Stop there.
- Work to bring it back into focus for five seconds, which you'll notice your pupil constrict as the focusing system engages.
- Then shift your gaze to the farthest point available, ideally out a window, for five seconds.
- Alternate. Do this with each eye separately.
This directly counters the rigidity that leads to reading glasses by building stamina and flexibility in the focusing system. Done daily, even 30 seconds per eye — it’s the single exercise most likely to prolong reading independence, reduce dependence on existing reading glasses, or, with consistent effort, reverse early-stage near vision decline.
This exercise helps reduce strain from close-up tasks (like reading or phone use) and supports a healthy, responsive visual system.
Peripheral Pointing
- Choose a fixed point across the room and hold your gaze there.
- Without moving your eyes, become aware of something in your peripheral field like a person, an object, anything to the side and point to where you think it is.
- Then shift your gaze over and see how accurate you were.
- Work both sides
- Practice expanding that peripheral awareness as far as you can while keeping your central gaze steady.
When you actively open peripheral awareness, your nervous system receives a signal that you are safe in space, the biological opposite of the tunneled, focal state that fight-or-flight and prolonged screen use both produce. Dr. Appelbaum has had patients use this exercise mid-panic on a bridge. It’s one of the most direct ways to shift yourself out of a stress response, and it doubles as training for better visual integration over time.
This practice improves spatial awareness and supports better performance in everyday tasks like driving, reading, and even playing sports, by expanding your field of visual attention.
The 20/20/20 Rule
Every 20 minutes of screen time, take a 20-second break and look at something at least 20 feet away. This is not a productivity suggestion. It’s a nervous system reset.
Four hours of continuous screen work and four hours broken into 20-minute intervals are the same total time with dramatically different outcomes for your visual system and your brain.
Put Your Vision First
More areas of your brain are dedicated to processing vision than to all other senses combined. It shapes reading, attention, spatial reasoning, balance, emotional regulation, and, as the research increasingly shows, long-term cognitive health.
Dr. Appelbaum’s consistent message throughout this conversation is that vision should be the first variable evaluated, not an afterthought after every other explanation has been tried. That functional vision is trainable at any age. That the gap between eyesight and vision is where most people’s hidden struggles actually live.
The full episode goes deeper: what vision screening for elite athletes looks like and how it factors into draft decisions, the connection between peripheral vision and anxiety regulation, what optometric phototherapy does for conditions like Horner syndrome, and how the intensive programs at MyVisionFirst are structured.
If any of what you’ve read sounds familiar, especially the reading fatigue, the mind-wandering, the sense that your brain is working harder than it should, then this episode is worth your full attention.
If any of what you’ve read sounds familiar, your visual system may be part of the reason.
MyVisionFirst offers a quick online vision quiz designed to identify common signs of functional vision issues including reading fatigue, screen stress, attention challenges, and visual overwhelm.
Taking the quiz is a simple first step in understanding whether your symptoms may be connected to how your visual system is functioning.
You can also explore ScreenFit™ if you’re ready to start supporting your visual system directly.
Make sure to follow The Genius Life and Max Lugavere, as well as Dr Bryce Appelbaum.
Are Functional Vision Problems Holding You Back?
Answer a few quick questions about your symptoms and see if Vision Performance Training can help you reach your full potential.
Answer a few quick questions about your symptoms and see if Vision Performance Training can help you reach your full potential.
About MyVisionFirst
A Bethesda-Based Vision Therapy & Neuro-Optometry Practice with Global Reach
At MyVisionFirst, we’re not your typical eye care clinic—and we like it that way.
Based in Bethesda, Maryland, we specialize in neuro-optometry and functional vision rehabilitation for both children and adults.
Our mission: Unlock Your Potential Through Vision.
We help people finally understand why their vision doesn’t feel right—even if they’ve been told everything looks “normal.”
Whether you’re a student struggling to read, an adult battling screen fatigue, or someone recovering from a brain injury or concussion, we help uncover and treat the underlying visual processing issues that traditional exams often miss.
And we don’t just serve the Maryland & DC metro area.
Patients travel from across the U.S. (and beyond) for our Vision Intensives, and many benefit from our virtual training programs that bring high-level care right to your home—no matter where you are.
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Keep Learning
The 3PM Crash Isn’t What You Think: How the Eye-Brain Connection Impacts Fatigue and Focus
In a powerful episode of The Dhru Purohit Show, neuro-optometrist Dr. Bryce Appelbaum reveals why the eye-brain connection may be the missing link behind brain fog, fatigue, and focus struggles—even with 20/20 eyesight.
The Hidden System Behind Performance: Why Vision Is Trainable (and what to do about it)
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