Binocular Vision & Developmental Optometry, Explained
Vision is more than 20/20.
This is where binocular vision — how the two eyes and the brain work together — and the neuroscience behind reading, attention, concussion recovery, dizziness, and everyday vision gets explained clearly — for parents trying to understand a diagnosis, teachers noticing something's off in the classroom, clinicians looking for a next step, and anyone curious how vision actually works.
Created by Dr. Justin Chelette, OD, FAAO — a residency-trained developmental optometrist who has spent his career teaching this material to patients and clinicians alike.
Who This Is For
Find your starting point
Whatever brought you here, there's a direct path to it.
Understand a diagnosis
Plain-language explanations of what's actually going on, written to make sense the first time you read them.
See the classroom connection
How vision quietly shapes reading, attention, and performance in students who seem to be struggling for no clear reason.
Build the foundation
A sequenced path through each pillar, starting where boards leave off.
Jump to a clinical question
Straight into the Clinical Library — findings, differentials, diagnosis.
Adding VT to your own practice? See Practice Building →
The Reference Shelf
Ten topics, defined terms, and the evidence behind them
The core of the site is a clinical library on binocular vision and the conditions around it, backed by a glossary and a source list.
Ten topics, one library
Convergence insufficiency, oculomotor dysfunction, binocular vision dysfunction, accommodative disorders, strabismus, concussion, dizziness, and more.
Terms, defined plainly
Sixty-plus terms from near point of convergence to vestibulo-ocular reflex, each linked back to the pages that use them.
What the literature says
The research, textbooks, and training programs behind the material, organized by topic.
Why This Exists
The field has a knowledge gap. This is one way to close it.
Optometry school teaches you to measure the eye. It spends far less time on how the brain interprets what the eye sends it — the piece that actually determines whether a patient can read fluently, track a moving target, or sit through a school day without a headache. See It Differently exists to put that neuroscience in front of the people who need it: the practicing OD looking for a next diagnosis, the student who wants more than the boards require, and the parent trying to understand why glasses alone didn't fix things.