{ "model": { "rank": 16732, "code": "thing-q550455", "model_id": "vr.tr.retinal-disease", "name": "retinal disease", "purpose": "Let an agent route sudden vision changes to urgent eye care, give general sourced information on retinal diseases, screening and low vision support, and refer individual questions to clinicians.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.STA", "industry": "", "version": "", "url": "/models/thing/q550455/", "tier": 2, "score": 32, "payload": { "layer": "wikidata", "aliases": [ "retina neoplasm", "retinal haemorrhage", "hypotony maculopathy", "Fundal haemorrhage", "autoimmune retinopathy", "HIV retinopathy", "AIDS retinopathy", "Multifocal choroiditis and panuveitis", "Histoplasma duboisii retinitis", "retinal degeneration", "osteogenesis imperfecta-retinopathy-seizures-intellectual disability syndrome", "angioid streaks of choroid", "cone-rod dystrophy", "peripheral retinal degeneration", "retinoschisis and retinal cysts", "primary retinal cyst", "secondary retinal cyst", "Radiation retinopathy", "Leber congenital amaurosis 2", "Leber congenital amaurosis 16", "Leber congenital amaurosis 17", "Leber congenital amaurosis 10", "Leber congenital amaurosis 3", "foveal hypoplasia 1", "peripheral cone dystrophy", "angioid streaks", "genetic vitreous-retinal disease", "Leber congenital amaurosis 7", "iris hypoplasia with glaucoma", "microcephaly and chorioretinopathy", "retinopathy of prematurity", "central serous retinopathy", "acute annular outer retinopathy", "Azoor", "nerve fibre bundle defect", "Valsalva retinopathy", "retinal vascular disease", "cone dystrophy", "Leber congenital amaurosis", "retinal edema" ], "aliasCount": 70, "merged": 70, "knownIn": 32, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q550455", "url": "https://www.wikidata.org/wiki/Q550455", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T12:34:42Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q550455", "registryId": "vr.tr.retinal-disease", "name": "retinal disease", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.STA" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q550455/", "model": { "registry_id": "vr.tr.retinal-disease", "name": "retinal disease", "purpose": "Let an agent route sudden vision changes to urgent eye care, give general sourced information on retinal diseases, screening and low vision support, and refer individual questions to clinicians.", "definition": "Any disease or disorder of the retina, the light-sensitive layer at the back of the eye, such as age-related macular degeneration, diabetic retinopathy, retinal detachment, retinal vein occlusion and inherited retinal dystrophies; some can cause permanent sight loss if not treated promptly.", "what_it_is_for": "A group of eye conditions relevant to emergencies, screening and sight loss support.", "affordances": [ "recognise warning signs needing urgent eye care", "find diabetic eye screening services", "find general information on retinal conditions", "find low vision and sight loss support" ], "distinguishing_features": [ "Affects the retina", "Can threaten sight", "Some need urgent treatment", "Screening prevents loss in some conditions" ], "appearance": "Not visible externally; seen by clinicians with retinal examination and imaging.", "visual_identification": [ "Flashes, floaters or a shadow in vision", "Distorted or blurred central vision", "Cataract affects the lens rather than the retina" ], "physical_properties": [], "families_and_kinds": [ "age-related macular degeneration", "diabetic retinopathy", "retinal detachment", "retinal vascular occlusions", "inherited retinal dystrophies" ], "related_models": [ { "relation": "is a kind of", "target": "eye disease", "why": "category" }, { "relation": "affects", "target": "retina", "why": "structure" }, { "relation": "is examined by", "target": "ophthalmologist and optometrist", "why": "specialist" }, { "relation": "is related to", "target": "visual impairment", "why": "outcome" } ], "identifiers": [], "standards_and_regulation": [ "National diabetic eye screening programmes", "Driving vision standards" ], "failure_modes_and_hazards": [ "Delaying care for sudden vision loss", "Missing diabetic screening", "Agents diagnosing eye symptoms" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "urgent", "name": "Urgent", "description": "Warning signs.", "rationale": "Safety comes first.", "layers": [ { "id": "detachment", "name": "Detachment", "description": "Flashes and shadows.", "findings": [ { "id": "detachment-finding", "name": "Detachment", "description": "Retinal detachment signs.", "questions": [ { "text": "Are there sudden new flashes, many new floaters or a curtain over vision?", "kind": "boundary" }, { "text": "Should the person seek same-day urgent eye care?", "kind": "action" } ] } ] }, { "id": "loss", "name": "Loss", "description": "Sudden vision loss.", "findings": [ { "id": "loss-finding", "name": "Loss", "description": "Sudden vision loss.", "questions": [ { "text": "Has vision suddenly dimmed or been lost in one eye?", "kind": "boundary" }, { "text": "Should emergency services or an eye emergency department be contacted now?", "kind": "action" } ] } ] } ] }, { "id": "information", "name": "Information", "description": "General facts.", "rationale": "Sourced information only.", "layers": [ { "id": "conditions", "name": "Conditions", "description": "Types.", "findings": [ { "id": "conditions-finding", "name": "Conditions", "description": "Condition types.", "questions": [ { "text": "What do eye health organisations say about this retinal condition?", "kind": "provenance" }, { "text": "How is it usually diagnosed?", "kind": "definition" } ] } ] }, { "id": "personal", "name": "Personal", "description": "Personal questions.", "findings": [ { "id": "personal-finding", "name": "Personal", "description": "Personal advice limits.", "questions": [ { "text": "Is the user asking about their own symptoms or scan results?", "kind": "boundary" }, { "text": "How should the agent refer them to an eye specialist?", "kind": "action" } ] } ] } ] }, { "id": "screening", "name": "Screening", "description": "Prevention.", "rationale": "Screening protects sight.", "layers": [ { "id": "diabetes", "name": "Diabetes", "description": "Diabetic screening.", "findings": [ { "id": "diabetes-finding", "name": "Diabetes", "description": "Diabetic eye screening.", "questions": [ { "text": "How often should people with diabetes have eye screening, according to the national programme?", "kind": "provenance" }, { "text": "How can they book it?", "kind": "action" } ] } ] }, { "id": "checks", "name": "Checks", "description": "Eye tests.", "findings": [ { "id": "checks-finding", "name": "Checks", "description": "Routine eye tests.", "questions": [ { "text": "How often are routine eye tests recommended?", "kind": "provenance" }, { "text": "Are they free for some groups?", "kind": "provenance" } ] } ] } ] }, { "id": "support", "name": "Support", "description": "Living with sight loss.", "rationale": "Support improves lives.", "layers": [ { "id": "lowvision", "name": "Low vision", "description": "Services.", "findings": [ { "id": "lowvision-finding", "name": "Low vision", "description": "Low vision services.", "questions": [ { "text": "Which low vision services and charities help?", "kind": "provenance" }, { "text": "Which aids and technology exist?", "kind": "provenance" } ] } ] }, { "id": "driving", "name": "Driving", "description": "Fitness to drive.", "findings": [ { "id": "driving-finding", "name": "Driving", "description": "Driving rules.", "questions": [ { "text": "Must the condition be reported to the driving authority?", "kind": "provenance" }, { "text": "Which vision standard applies?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should each retinal disease be a separate entry?", "How should screening services be localised?", "How should sight loss support be linked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "disease or condition", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a retinal disease, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent route sudden vision changes to urgent eye care, give general sourced information on retinal diseases, screening and low vision support, and refer individual questions to clinicians.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: retina neoplasm, retinal haemorrhage, hypotony maculopathy, Fundal haemorrhage, autoimmune retinopathy, HIV retinopathy, AIDS retinopathy, Multifocal choroiditis and panuveitis, Histoplasma duboisii retinitis, retinal degeneration, osteogenesis imperfecta-retinopathy-seizures-intellectual disability syndrome, angioid streaks of choroid.", "70 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 32 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a retinal disease, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by criteria applied to signs and findings, not by appearance. Two conditions can look identical and be distinguished only by test." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "retina neoplasm", "retinal haemorrhage", "hypotony maculopathy", "Fundal haemorrhage", "autoimmune retinopathy", "HIV retinopathy", "AIDS retinopathy", "Multifocal choroiditis and panuveitis", "Histoplasma duboisii retinitis", "retinal degeneration", "osteogenesis imperfecta-retinopathy-seizures-intellectual disability syndrome", "angioid streaks of choroid" ] } ], "standing": "Described in 32 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 70 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one retinal disease from another, and a retinal disease from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a retinal disease sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a retinal disease from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a retinal disease passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a retinal disease between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a retinal disease, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a retinal disease is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "diagnosis-and-criteria", "name": "Diagnosis, criteria and coding", "description": "What makes a case of retinal disease a case, and under which revision.", "rationale": "Criteria change between revisions, so a diagnosis without its coding revision cannot be compared with a later one.", "layers": [ { "id": "criteria", "name": "Diagnostic criteria", "description": "The criteria in force and who issues them.", "findings": [ { "id": "criteria-record", "name": "Criteria, issuer and revision", "description": "What must be true for a diagnosis, according to whom.", "questions": [ { "id": "criteria-record-q01", "text": "What criteria define retinal disease, issued by which body, in which revision?", "kind": "definition" }, { "id": "criteria-record-q02", "text": "What changed between revisions that would reclassify existing cases?", "kind": "boundary" } ] } ] }, { "id": "coding", "name": "Coding and terminology", "description": "The codes used to record it and their mapping.", "findings": [ { "id": "coding-record", "name": "Codes and mappings", "description": "Which classification codes apply and how they map.", "questions": [ { "id": "coding-record-q01", "text": "Which classification and terminology codes cover retinal disease, and how do they map to each other?", "kind": "definition" }, { "id": "coding-record-q02", "text": "What is lost when a case is mapped from one scheme to another?", "kind": "boundary" } ] } ] } ] }, { "id": "course-and-population", "name": "Course, population and care", "description": "How retinal disease develops, whom it affects, and what is done about it.", "rationale": "The condition, the diagnosis and the episode of care are three different things, and an agent must not merge them.", "layers": [ { "id": "course", "name": "Course and stages", "description": "Onset, progression, remission and outcome.", "findings": [ { "id": "course-record", "name": "Stages and transitions", "description": "The stages recorded and what moves a case between them.", "questions": [ { "id": "course-record-q01", "text": "What course does retinal disease typically take, and what marks each stage?", "kind": "definition" }, { "id": "course-record-q02", "text": "What separates the condition itself from an episode of care for it?", "kind": "boundary" } ] } ] }, { "id": "population", "name": "Affected populations", "description": "Who is affected, how often, and on what evidence.", "findings": [ { "id": "epidemiology", "name": "Prevalence and its basis", "description": "Rates with their population, period and source.", "questions": [ { "id": "epidemiology-q01", "text": "What prevalence or incidence is reported for retinal disease, in which population and period?", "kind": "measurement" }, { "id": "epidemiology-q02", "text": "What may an agent not conclude about an individual from a population rate?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a retinal disease came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a retinal disease and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a retinal disease is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a retinal disease, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a retinal disease, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a retinal disease is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }