myopia
Let an agent explain myopia and its progression in general terms from ophthalmic sources, describe correction and control methods, relay the rising prevalence with attribution, and route personal eye concerns to eye care professionals.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain myopia and its progression in general terms from ophthalmic sources, describe correction and control methods, relay the rising prevalence with attribution, and route personal eye concerns to eye care professionals.
A refractive error, also called nearsightedness, in which light focuses in front of the retina because the eyeball is too long or the cornea too curved, causing blurred distance vision, usually beginning in childhood and progressing through adolescence, with high or degenerative myopia carrying risks of retinal detachment, myopic maculopathy and glaucoma, and rarer syndromic forms; myopia prevalence is rising sharply worldwide, and it is corrected with lenses or surgery and slowed in children by outdoor time and specific treatments.
What it is for: Not applicable; a refractive error.
It can be explain the condition; relay correction and control; relay prevalence trends; route personal concerns.
Distinguishing features
Minus lens correction
Childhood progression
Rising prevalence
High myopia risks
What it looks like
Not a visible object; blurred distance vision, corrected by minus lenses.
Physical character
high myopia threshold: worse than -6 dioptres - commonly defined
projected prevalence by 2050: about 50 percent - of world population, Holden et al. 2016
prevalence in East Asian young adults: about 80-90 percent - some cities
How it is recognised
Nearsightedness from light focusing before the retina
Simple, high, degenerative and syndromic myopia; myopia in animals
Hyperopia is farsightedness; astigmatism is uneven focus; presbyopia is age-related near blur
Related models
is a kind of - in registry terms
is contrasted with - farsightedness
is corrected by - with concave lenses
increases risk of - when high
In practice
Families and kinds
simple or school myopia
high myopia
degenerative or pathological myopia
syndromic myopia in conditions such as Marfan and Stickler syndromes
myopia in animals such as dogs and horses
night myopia and pseudomyopia
Identifiers
ICD-11 9D00.0 myopia
MeSH D009216 myopia
Standards and regulation
Clinical guidelines on refractive error and myopia control
Regulation of spectacles, contact lenses, atropine and refractive surgery
School vision screening programmes
Failure modes and hazards
Undetected myopia affecting learning
Complications of high myopia
Agents giving personal medical advice
Unproven remedies
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What myopia is.
Clinical.
Definition
Definition and cause.
Definition
Definition.
- What is myopia, and why does light focus in front of the retina? definition
- Is the question about myopia, hyperopia, astigmatism or presbyopia? boundary
Kinds
Kinds.
Kinds
Kinds.
- How do simple, high, degenerative and syndromic myopia differ, and does myopia occur in animals? definition
- Which entry fits the specific kind? action
Care Correction and control.
Clinical.
Correction
Correction.
Correction
Correction.
- How is myopia corrected with spectacles, contact lenses and refractive surgery, in general terms? provenance
- Is the user asking about their own vision, which needs an eye examination? boundary
Control
Myopia control in children.
Control
Control.
- What do guidelines say about slowing progression with outdoor time, atropine and special lenses, with evidence attributed? provenance
- Which references are standard? provenance
Risks Risks and trends.
Attribution.
Complications
Complications.
Complications
Complications.
- What complications does high myopia carry, and what warning signs need urgent care? provenance
- Is the user describing sudden flashes, floaters or vision loss, which need urgent eye care? boundary
Epidemic
Rising prevalence.
Epidemic
Epidemic.
- Why is myopia rising worldwide, and what do researchers say about causes, with findings attributed? provenance
- Which sources are cited? provenance
Context History and research.
Context.
History
History.
History
History.
- How were nearsightedness and its correction understood historically? provenance
- Which entry fits the history of spectacles? action
Research
Research.
Research
Research.
- What research explores genetics, light exposure and new treatments for myopia? provenance
- Which entry fits myopia research? action
What the second pass must settle
- Should high myopia and myopia control be separate primary entries?
- How should clinical guidelines be linked?
- The registry entry has merged aliases naming animal and syndromic forms; should they be split off?