cataract
Let an agent explain cataract in general terms and point to eye care services, routing sudden vision changes to urgent care and giving no diagnosis.
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 cataract in general terms and point to eye care services, routing sudden vision changes to urgent care and giving no diagnosis.
A clouding of the lens of the eye that causes blurred or dim vision, glare and faded colours, most often age-related but also congenital, traumatic or linked to diabetes or medicines; commonly treated by surgery that replaces the lens.
What it is for: A common, treatable cause of vision loss.
It can be explain what cataract is in general terms; find eye tests and referral routes; understand surgery in general terms; find driving vision rules.
Distinguishing features
Clouding of the lens
Usually gradual
Very common with age
Treatable by surgery
What it looks like
A cloudy or milky lens, sometimes visible in the pupil in advanced cases.
How it is recognised
Gradual blurring and glare
Diagnosed by eye examination
Cataract as a waterfall is a different sense
Related models
is a kind of - category
affects - anatomy
is treated by - treatment
is confused with - another sense
In practice
Families and kinds
age-related cataract
congenital cataract
traumatic cataract
diabetic and secondary cataract
inherited cataract types
Identifiers
ICD-11 9B10 age-related cataract
Standards and regulation
Clinical guidelines for cataract surgery
Driving vision standards
Failure modes and hazards
Ignoring sudden vision loss
Agents diagnosing eye conditions
Driving with poor vision
Also called
+30
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.cataract
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Urgent Sudden changes.
Sudden changes need urgent care.
Sudden
Vision loss.
Sudden
Sudden vision changes.
- Is vision loss sudden, painful or accompanied by flashes or a curtain? boundary
- Which urgent eye or emergency service should be contacted? action
Diagnosis
Eye examination.
Diagnosis
Diagnosis limit.
- Is the user asking the agent to diagnose their vision? boundary
- How can they book an eye test? action
Condition General information.
General information helps.
What
Explanation.
What
Explanation.
- What is a cataract, according to reliable health sources? provenance
- What are common risk factors? provenance
Children
Congenital cataract.
Children
Children.
- Is a child with a white pupil reflex being seen urgently by a specialist? boundary
- Which service should be contacted? action
Treatment Surgery.
Clinicians decide treatment.
Surgery
General terms.
Surgery
Surgery.
- What does cataract surgery involve, in general terms? definition
- How is referral arranged here? provenance
Recovery
After surgery.
Recovery
Recovery.
- What aftercare do clinicians usually give? provenance
- Which symptoms after surgery need urgent review? boundary
Living Daily life.
Vision affects daily life.
Driving
Rules.
Driving
Driving rules.
- Do driving vision standards apply, and must the authority be told? provenance
- Where is the official guidance? provenance
Support
Sight loss support.
Support
Sight loss support.
- Which organisations support people with sight loss? provenance
- What aids are available? provenance
What the second pass must settle
- Should cataract types be separate entries?
- How should eye services be localised?
- How should the waterfall sense be split off?