{"id":"https://openalex.org/keywords/angle-alpha","display_name":"alpha angle","description":"The alpha angle is an ophthalmic measurement describing the angular separation between the visual axis and the center of the cornea, relevant to intraocular lens outcomes.","display_name_alternatives":["angle alpha","\u03b1 angle","angle \u03b1"],"ids":{"openalex":"https://openalex.org/keywords/angle-alpha","wikidata":null},"primary_topic":{"id":"https://openalex.org/T11218","display_name":"Hip disorders and treatments","score":0.6157,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11218","display_name":"Hip disorders and treatments","score":0.6157,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"works_count":2607,"cited_by_count":43310,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/angle-alpha","updated_date":"2026-10-16T04:06:51","created_date":"2022-04-12T19:38:12"}