Participatory research is a broad term covering a range of approaches that are characterised by a focus on "action-oriented" research involving researchers and participants working in collaboration to bring about positive change. These approaches emphasise engagement with co-researchers and the development and implementation of context-appropriate strategies that seek to empower and transform at a number of levels. This article explores the dynamics of a multi-agency and multinational research programme that investigated the working practices of specialist teachers of children with visual impairment in Uganda and Kenya. The research utilised a range of participatory methods, including workshops and a dedicated practice journal, to provide opportunities for participants to record information about their practice and share their experiences with colleagues. The article analyses the effectiveness of the approach, with a particular focus on the "relational praxis" between the project partners. This analysis highlights the complex nature of the collaborative relationships when research is transnational and operates across cultural, social and environmental contexts. Considerations are offered for research design in this area. (Contains 2 tables.)