{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.eye-movement","code":"thing-q760256","url":"https://ver.cy/models/thing/q760256/","name":"eye movement","alternateNames":["abnormal eye movements","fixation","eye movement in scene viewing","rapid eye movement","smooth pursuit","Vergence","eye movement in music reading","ocular convergence","eye movements in reading","Microsaccade"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.EVT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A voluntary or involuntary movement of the eyes, including saccades, smooth pursuit, vergence, fixation and the rapid eye movements of sleep, controlled by six extraocular muscles per eye.","purpose":"Let an agent handle eye movements by type, function, measurement and clinical relevance, without diagnosis.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Several distinct types","Controlled by brainstem and cortex","Measurable with eye trackers","Abnormalities can signal medical problems"],"structure":{"bundles":[{"id":"type","name":"Type","description":"Which movement.","layers":[{"id":"kind","name":"Kind","description":"Saccade, pursuit.","findings":[{"id":"kind-finding","name":"Kind","description":"Movement type.","questions":[{"text":"Which type of eye movement is meant?","kind":"definition"},{"text":"What is its function?","kind":"definition"}]}]},{"id":"control","name":"Control","description":"Neural control.","findings":[{"id":"control-finding","name":"Control","description":"Neural control.","questions":[{"text":"Which brain areas control it?","kind":"provenance"},{"text":"Is it voluntary or reflexive?","kind":"definition"}]}]}]},{"id":"measurement","name":"Measurement","description":"Eye tracking.","layers":[{"id":"tracking","name":"Tracking","description":"Devices.","findings":[{"id":"tracking-finding","name":"Tracking","description":"Eye tracking.","questions":[{"text":"How is the movement measured?","kind":"measurement"},{"text":"What sampling rate is needed?","kind":"measurement"}]}]},{"id":"privacy","name":"Privacy","description":"Gaze data.","findings":[{"id":"privacy-finding","name":"Privacy","description":"Gaze data privacy.","questions":[{"text":"Is gaze data collected with consent?","kind":"boundary"},{"text":"How is it stored?","kind":"provenance"}]}]}]},{"id":"health","name":"Health","description":"Clinical relevance.","layers":[{"id":"symptoms","name":"Symptoms","description":"Abnormal movements.","findings":[{"id":"symptoms-finding","name":"Symptoms","description":"Abnormal movements.","questions":[{"text":"Are sudden double vision or abnormal eye movements present?","kind":"boundary"},{"text":"Should urgent medical care be sought?","kind":"action"}]}]},{"id":"specialists","name":"Specialists","description":"Referral.","findings":[{"id":"specialists-finding","name":"Specialists","description":"Specialists.","questions":[{"text":"Which specialist assesses eye movement disorders?","kind":"provenance"},{"text":"How can an appointment be made?","kind":"action"}]}]}]},{"id":"applications","name":"Applications","description":"Uses.","layers":[{"id":"accessibility","name":"Accessibility","description":"Gaze control.","findings":[{"id":"accessibility-finding","name":"Accessibility","description":"Gaze control.","questions":[{"text":"Can gaze control help this user operate a device?","kind":"action"},{"text":"Which systems support it?","kind":"provenance"}]}]},{"id":"research","name":"Research","description":"Reading and design.","findings":[{"id":"research-finding","name":"Research","description":"Research uses.","questions":[{"text":"How are eye movements used in reading or usability research?","kind":"definition"},{"text":"What are the limits of the method?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Explain the kinds of eye movement and how they are controlled in general terms.","Use gaze data in a system only with the user's informed consent and for the stated purpose."],"mustNot":["Diagnose a neurological or eye condition from described symptoms or recordings.","Record or infer a person's attention, emotions or health from gaze without consent.","Use eye tracking to judge a person's honesty or suitability for a job.","Share gaze data beyond the purpose a person agreed to."],"requiresHuman":["Any medical interpretation of a person's eye movements."]},"ethics":{"considerations":["Gaze data can reveal health, interests and attention a person did not choose to share.","Changes in eye movement can be early signs of illness that need a doctor."],"affectedParties":["People being tracked","Patients","Users of eye-tracking devices"]},"owners":{"steward":"Nobody owns the movement; the operator of an eye-tracking system answers for the data it collects.","roles":[],"masterSystems":[]},"relations":[{"target":"Q115728415","type":"parent","note":"registry parent class"},{"target":"Q3326454","type":"parent","note":"registry parent class"},{"target":"movement","type":"related","note":"category"},{"target":"eye and extraocular muscles","type":"related","note":"anatomy"},{"target":"eye tracker","type":"related","note":"instrument"},{"target":"REM sleep","type":"related","note":"sleep"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.eye-movement","Wikidata: Q760256 (https://www.wikidata.org/wiki/Q760256)"]},"properties":{"applicability":"not-applicable","items":["saccade duration: about 20-200 ms","extraocular muscles: 6 per eye"]},"recognition":{"applicability":"optional","items":["Saccades are fast jumps","Smooth pursuit follows moving targets","REM occurs during sleep","Rapid jumps, smooth following and converging of the eyes."]},"capabilities":{"applicability":"required","items":["distinguish types of eye movement","understand eye tracking research","recognise when abnormal movements need a clinician","use eye tracking in accessibility"]},"hazards":{"applicability":"required","items":["Self-diagnosis from symptoms","Privacy risks from gaze data"]},"interfaces":{"applicability":"required","items":["Medical device rules for clinical eye tracking","Research ethics and data protection for gaze data"]},"context":{"applicability":"required","items":["Directing gaze, tracking objects and keeping images stable.","saccades","smooth pursuit","vergence","vestibulo-ocular reflex","rapid eye movement in sleep"]}},"sources":[{"title":"Wikidata item Q760256: eye movement","url":"https://www.wikidata.org/wiki/Q760256","note":"identity and sense of the item"},{"title":"Wikipedia: Eye movement","url":"https://en.wikipedia.org/wiki/Eye_movement","note":"general description of the item"}],"openQuestions":["Should each movement type be a separate entry?","How should eye tracking datasets be linked?","How should clinical terms be kept non-diagnostic?"],"resources":{"spec":"/models/things/publications/thing-q760256/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q760256/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T09:30:49Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:02+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties."},"score":1.0}}