Complaints & connections · borters.ch
Myopia
The eye is built too long — time outdoors demonstrably slows progression in children.
Also known as: myopia · short-sightedness · near-sightedness
Open in the tool — with search and all the links →This compilation is for information and replaces neither medical diagnosis nor treatment. If you have symptoms, see a doctor.
Short-sightedness: distance vision becomes blurred because the eye is built slightly too long and the image forms in front of the retina. Very common and rising sharply worldwide, especially in children and teens. Usually harmless and well corrected with glasses or contact lenses. With strong myopia, the long-term risk of retinal and eye disease rises — so in children it is worth actively slowing progression. Plenty of daylight outdoors is proven to protect.
In children, time outdoors (about 2 hours daily) provably slows progression.
Adjust correction and, with strong or fast-progressing myopia, monitor the retina.
Special lenses, contact lenses or low-dose atropine can slow progression — via an eye specialist.
During long near-work, look into the distance regularly to rest the eyes.
Glasses and contact lenses correct, they do not slow the progression. In children it can be slowed: very low-dose atropine eye drops, every night over two to three years, halve the eye’s growth in length; special spectacle lenses and rigid night lenses come alongside. And daylight: two hours outdoors a day clearly pushed back the onset in studies.
The eye grows until about the age of twenty; each additional millimetre of length equals about minus three dioptres. From minus six it counts as high myopia, and there retinal detachment, glaucoma and macular damage rise clearly — which is why in children it is about slowing it, not only about glasses. Two hours of daylight a day pushed back the onset in studies; low-dose atropine slows it by about half.
Signs or the board look blurred; near vision stays sharp.
Frequent squinting, eye strain or headaches when uncorrected.
These two pigments gather exactly at the place of sharpest vision and filter short-wave light there. Kale, spinach, chard, broccoli and egg yolk are the sources.
The retina holds particularly much zinc; it is needed to turn light into a signal. High doses over months lower copper, though — so the two are considered together.
The outer segments of the seeing cells consist largely of a long-chain omega-3 fatty acid, and the tear film needs it too.
The seeing pigment is built from vitamin A. A lack shows first as poor vision at dusk and as a dry surface of the eye.
The strongest known quantity is not an ingredient but daylight: two hours outdoors a day measurably slow the progression in children, regardless of what is done indoors. It is about the brightness, not about looking into the distance — even in the shade it is ten times brighter outdoors than at the window.
Children with stronger short-sightedness have on average lower vitamin D levels — only that is probably the same finding said twice: being outdoors little gives both. Capsules therefore do not replace the time outside.
These two protect the centre of the retina from light and are studied in age-related retinal change. On the length of the eyeball, which is what short-sightedness is about, they do not act — that is a growth process, not light damage.
Effects on inflammation and triglycerides established; cardiovascular prevention is mixed. Watch quality and freshness.
The heart of the matter: bright daylight makes the retina release dopamine, and that signal slows the eye’s growth in length. Two hours outdoors a day measurably slows short-sightedness in children — it is the light, not the distance.
The eye grows more at night, and the growth follows a daily rhythm. This is why short-sightedness also hangs on sleep and on light in the evening — not only on screen time.
In children two hours outdoors a day measurably slow the progression of short-sightedness. For carrots and other foods there is no comparable evidence — said plainly.
Time outdoors slows the increase in children — the best-documented factor there is.
It briefly creates a sharper image; it does not change the eye’s refractive power.