Plain-language guides
Guides
What happens to near vision with age, what the options are, and what the research on Gabor patches and perceptual learning does and doesn’t show. We make Visionary, so where we compare products, we say so.
Presbyopia and reading glasses
Why near focus changes with age, how reading glasses and prescriptions work, and what the options are.
Presbyopia guide
Why near focus changes with age, when to get an eye exam, and the options.
Presbyopia at 40
Why small print gets harder around 40, how it progresses, and every option.
Can you reverse presbyopia?
What eye exercises, pinhole glasses, and supplements actually do.
Reading glasses with contacts
Readers over contact lenses, choosing a strength, and multifocal options.
How to read your prescription
OD, OS, SPH, CYL, axis, ADD, and PD decoded with a real example.
Reading glasses vs training
What each one does, and why training is no substitute for glasses.
What is 20/20 vision?
What the numbers mean, and why 20/20 is not perfect vision.
Presbyopia eye drops
The four FDA-approved drops, compared from their labels: how they work, how long they last, and what they warn about.
Eye drops compared
Vuity, Qlosi, VIZZ, and Yuvezzi side by side, from their FDA labels.
Every presbyopia eye drop
Each FDA-approved drop: active ingredient, labeled dosing, and warnings.
Eye drop side effects
What each label warns about, in plain language.
Vuity
Pilocarpine 1.25%, the first presbyopia drop.
Qlosi
Low-dose pilocarpine 0.4% in single-use vials.
VIZZ
Aceclidine 1.44%, a pupil-selective drop.
Yuvezzi
Carbachol and brimonidine in one drop.
Questions for your appointment
A checklist of questions about drops to bring to an eye-care appointment.
Eye drops vs visual training
How a prescription drop differs from practicing visual skills.
Gabor patches
What Gabor patches are, what the training studies did, and what they did not show.
What are Gabor patches?
What they are, why vision scientists use them, and what studies found.
Gabor patches and presbyopia
The main presbyopia studies, their designs, and their limits.
How long Gabor training takes
How long the studies trained people, and why no one can promise a timeline.
Can you improve contrast sensitivity?
What affects contrast sensitivity, when to get it checked, and what research found.
Compare apps
Eye training and vision training apps side by side, written by the team behind Visionary.
The science
Perceptual learning, neuroplasticity, and the eye-exercise claims the research does not support.
Research
The perceptual-learning research that informs Visionary, with each study’s design and limits.
Perceptual learning
How adults get better at specific visual tasks with practice.
Neuroplasticity and vision
What the adult visual system can still learn, and what research does not show.
Bates method and eye exercises
A century of eye-exercise claims, checked against the evidence.
History
How people have cared for their eyes, and how eyeglasses came to be.