hyperopia
Let an agent explain hyperopia and its degrees in general terms from ophthalmic sources, describe symptoms, diagnosis and correction, distinguish it from presbyopia and myopia, 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 hyperopia and its degrees in general terms from ophthalmic sources, describe symptoms, diagnosis and correction, distinguish it from presbyopia and myopia, and route personal eye concerns to eye care professionals.
A refractive error, also called hypermetropia or farsightedness, in which light focuses behind the retina because the eyeball is too short or the cornea or lens too weak, causing blurred near vision and eye strain, ranging from mild latent hyperopia common in children to high-grade hypermetropia that can cause amblyopia or strabismus, sometimes combined with astigmatism; it is diagnosed by refraction and corrected with convex lenses, contact lenses or refractive surgery.
What it is for: Not applicable; a refractive error.
It can be explain the condition; relay symptoms and correction; distinguish from related conditions; route personal concerns.
Distinguishing features
Plus lens correction
Latent form in children
Accommodation compensation
Amblyopia risk when high
What it looks like
Not a visible object; blurred near vision, corrected by plus lenses.
Physical character
high hyperopia: above +5 dioptres - commonly defined
prevalence in adults: about 5-10 percent - varies by population and definition
How it is recognised
Farsightedness from light focusing behind the retina
Mild, moderate and high-grade hyperopia; hyperopia with astigmatism
Presbyopia is age-related loss of accommodation; myopia is nearsightedness
Related models
is a kind of - in registry terms
is contrasted with - nearsightedness
is corrected by - with convex lenses
can cause - when high and uncorrected in children
In practice
Families and kinds
simple and axial hyperopia
latent, manifest and absolute hyperopia
high-grade hypermetropia
hyperopia with astigmatism
hyperopia in children and in adults
rare syndromic hyperopia
Identifiers
ICD-11 9D00.1 hypermetropia
MeSH D006956 hyperopia
Standards and regulation
Clinical guidelines for refractive error and paediatric vision screening
Regulation of spectacles, contact lenses and refractive surgery
Failure modes and hazards
Undetected hyperopia in children causing amblyopia
Agents giving personal medical advice
Confusing hyperopia with presbyopia
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 hyperopia is.
Clinical.
Definition
Definition and cause.
Definition
Definition.
- What is hyperopia, and why does light focus behind the retina? definition
- Is the question about hyperopia, presbyopia or myopia? boundary
Degrees
Degrees and forms.
Degrees
Degrees.
- How do latent, manifest and high-grade hyperopia differ, and how does astigmatism combine with it? definition
- Which entry fits the specific form? action
Care Diagnosis and correction.
Clinical.
Diagnosis
Diagnosis.
Diagnosis
Diagnosis.
- How is hyperopia diagnosed, including cycloplegic refraction in children? provenance
- Is the user asking about their own vision, which needs an eye examination? boundary
Correction
Correction.
Correction
Correction.
- How is hyperopia corrected with lenses or surgery, in general terms? provenance
- Which references are standard? provenance
Children Children.
Clinical.
Screening
Screening.
Screening
Screening.
- Why does hyperopia matter in children, and how is vision screened? provenance
- Which sources are cited? provenance
Complications
Amblyopia and strabismus.
Complications
Complications.
- How can high hyperopia lead to amblyopia and strabismus? provenance
- Which entry fits amblyopia? action
Context Epidemiology and history.
Context.
Epidemiology
Prevalence.
Epidemiology
Epidemiology.
- How common is hyperopia across ages and populations? provenance
- Which entry fits refractive error epidemiology? action
History
History.
History
History.
- How were farsightedness and its correction understood historically? provenance
- Which entry fits the history of spectacles? action
What the second pass must settle
- Should refractive error be the primary linked entry?
- How should clinical guidelines be linked?
- The registry entry has merged aliases naming rare and high-grade forms; should they be split off?