Potential role of proprietary patent medicine vendors in primary eye and ear care: A mixed methods study in northern Nigeria

• Joseph Okeibunor ,

  Roles Data curation, Formal analysis, Investigation, Methodology, Supervision, Writing – review & editing

  ¶Member of PPMV Study Group.

  Affiliation Social Scientist, Department of Anthropology and Sociology, University of Nigeria Nssuka, Enugu State, Nigeria

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• Andrew Smith ,

  Roles Conceptualization, Methodology, Writing – review & editing

  ¶Member of PPMV Study Group.

  Affiliation Honorary Professor, International Centre for Evidence in Disability, Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom

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• Emma Jolley,

  Roles Formal analysis, Validation, Writing – review & editing

  Affiliation Head of Portfolio, Health and Disability Research, Sightsavers, Haywards Heath, West Sussex

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• Elizabeth Elhassan ,

  Roles Conceptualization, Methodology, Writing – review & editing

  ¶Member of PPMV Study Group.

  Affiliation Filant Consulting, 1a Yusuf Lere Drive, U/Rimi, Kaduna, Kaduna State, Nigeria

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• Oluwatosin Adekeye,

  Roles Data curation, Investigation, Writing – review & editing

  Affiliation Social Scientist, Department of Psychiatry, Ahmadu Bello University Teaching Hospital, Shika, Zaria, Nigeria

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• Lawal Hasfat Kontagora,

  Roles Data curation, Investigation, Writing – review & editing

  Affiliation Director, Academic Services, National Teachers’ Institute, Kaduna, Nigeria

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• Sunday Isiyaku ,

  Roles Conceptualization, Methodology, Project administration, Resources, Writing – review & editing

  ¶Member of PPMV Study Group.

  Affiliation Country Director, Sightsavers, Kaduna, Nigeria

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• William Adamani,

  Roles Data curation, Project administration, Writing – review & editing

  Affiliation Research Officer, Sightsavers, Kaduna, Nigeria

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• Caleb Mpyet,

  Roles Conceptualization, Funding acquisition, Writing – review & editing

  Affiliation Department of Ophthalmology, University of Jos, Jos, Nigeria

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• Hannah Faal,

  Roles Conceptualization, Funding acquisition, Writing – review & editing

  Affiliation Director of Evidence, Research and Innovations, Sightsavers, Haywards Heath, West Sussex

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• Elena Schmidt ,

  Roles Conceptualization, Methodology, Writing – review & editing

  ¶Member of PPMV Study Group.

  Affiliation Adjunct Professor, International Eye Health, University of Calabar Teaching Hospital, Calabar, Nigeria

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• Clare E. Gilbert

  Roles Conceptualization, Funding acquisition, Methodology, Writing – original draft

  * E-mail: clare.gilbert@lshtm.ac.uk

  ¶Member of PPMV Study Group.

  Affiliation International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom.

  https://orcid.org/0000-0003-3514-6248

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