@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/ophthalmia>
  skos:prefLabel "ophthalmia"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/keratitis>
  skos:prefLabel "keratitis"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/astigmatism>
  skos:prefLabel "astigmatism"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/conjunctivitis>
  skos:prefLabel "conjunctivitis"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/strabismus>
  skos:prefLabel "strabismus"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/localized_diseases>
  skos:prefLabel "localized diseases"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/diseases_and_medical_conditions>
  skos:prefLabel "diseases and medical conditions"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/cataracts>
  skos:prefLabel "cataracts"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/myopia>
  skos:prefLabel "myopia"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/retinal_diseases>
  skos:prefLabel "retinal diseases"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/microphthalmos>
  skos:prefLabel "microphthalmos"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/concepts>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/asthenopia>
  skos:prefLabel "asthenopia"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/nystagmus>
  skos:prefLabel "nystagmus"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/glaucoma>
  skos:prefLabel "glaucoma"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/disease>
  skos:prefLabel "disease"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/eye_disease> .

<https://concepts.sagepub.com/social-science/concept/eye_disease>
  skos:narrower <https://concepts.sagepub.com/social-science/concept/myopia>, <https://concepts.sagepub.com/social-science/concept/strabismus>, <https://concepts.sagepub.com/social-science/concept/ophthalmia>, <https://concepts.sagepub.com/social-science/concept/retinal_diseases>, <https://concepts.sagepub.com/social-science/concept/keratitis>, <https://concepts.sagepub.com/social-science/concept/glaucoma>, <https://concepts.sagepub.com/social-science/concept/microphthalmos>, <https://concepts.sagepub.com/social-science/concept/conjunctivitis>, <https://concepts.sagepub.com/social-science/concept/nystagmus>, <https://concepts.sagepub.com/social-science/concept/cataracts>, <https://concepts.sagepub.com/social-science/concept/astigmatism>, <https://concepts.sagepub.com/social-science/concept/asthenopia> ;
  a skos:Concept ;
  skos:definition "Visual problems are among the most feared disabilities in the elderly. According to the World Health Organization, more than 161 million people globally were afflicted with visual impairments in 2002. [Source: <a href=\"https://sk.sagepub.com/reference/aging/n106.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Health &amp; Aging; Eye Diseases</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/disease>, <https://concepts.sagepub.com/social-science/concept/diseases_and_medical_conditions>, <https://concepts.sagepub.com/social-science/concept/localized_diseases> ;
  skos:prefLabel "eye disease"@en .