Trustee, Snowdon Trust (charity for disabled students) (interest ceased 14 October 2024)

International Council for Education of People with Visual Impairment (interest ceased 14 December 2023)

Director, International Council for Education of People with Visual Impairment (ICEVI)

Member, Disability Advisory Committee, Equality and Human Rights Commission (interest ceased 31 March 2022)

Ambassador, Disability Rights UK

Chair, Low Commission on the future of advice and legal support (no financial interest, some expenses covered) (interest ceased 31 January 2014)

The Royal National Institute of Blind People (RNIB) employs a Parliamentary Peer Support Assistant to assist the member; the member reimburses the RNIB for 100% of the employment costs incurred (interest ceased 31 December 2022)

Vice Chair, Transformation Council, Royal National College for the Blind (no financial interest, some expenses covered) (interest ceased 31 December 2018)

Chair, ACEVO Commission on Third Sector Regulation (no financial interest, travel expenses covered)

Member, House of Lords Appointments Commission (interest ceased 31 May 2019)

A former employee of Sense, now working for Hacked Off, provides the Member with research services, in particular those relating to children and young people with special educational needs and disabilities, and to parliamentary procedure

Visit to Vienna, 22-23 January 2012, to attend a conference on "Good Policies for Disabled People" organised by World Future Council; costs met by conference organisers (travel, accommodation and subsistence for the duration of the conference)

President, UK Association for Accessible Formats (no financial interest)

President, Visionary (umbrella organisation of local associations for visually impaired people) (no financial interest, some expenses covered)

Trustee, St Dunstan's

Immediate Past President, International Council for Education of People with Visual Impairment (interest ceased 31 August 2016)

President, Disability Alliance

President, Skill (national bureau for students with disablities)

Visit (with wife as guide) to Egypt and Gaza, January 2010, as part of a pan-European parliamentary delegation; paid for by European Campaign to end Siege of Gaza

A full-time researcher is provided by the Royal National Institute of Blind People (RNIB)