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Arclight Project training repositioned Malawian eye-care workers and sustained device use over three yearsLow-cost eye tools changed roles for health workers in Malawi

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Key Takeaway
Consider designing PEC programmes to strengthen professional networks alongside skills transfer to sustain impact.

This qualitative follow-up study assessed the long-term impact of the Arclight Project in central Malawi, involving Ophthalmic Clinical Officers (OCOs) and Health Surveillance Assistants (HSAs) within community health systems. The intervention comprised a cascade Training the Trainers (ToT) programme utilizing the Arclight device and Wilson anterior segment loupe. Data were collected three years after implementation to evaluate device function, evolving professional roles, training diffusion, and communication patterns.

The study found that frugal eye-care technologies functioned not only as diagnostic tools but also as mechanisms for professional repositioning. HSAs equipped with low-cost devices were recognized as community eye focal persons, receiving referrals from colleagues and community members. OCOs who delivered training emerged as central hubs for clinical advice, creating strong vertical networks between district and community levels.

However, horizontal peer-to-peer networks among HSAs remained weak and largely informal. Communication patterns relied heavily on ad-hoc phone calls and WhatsApp messaging, with limited structured communities of practice. Despite sustained use of devices and retention of key skills, network activity often declined over time without active reinforcement. Safety data, adverse events, and specific quantitative outcomes were not reported.

The study notes that designing PEC programmes with explicit attention to strengthening and sustaining professional networks, rather than focusing solely on skills transfer, may enhance alignment with WHO Integrated People-Centred Eye Care. This approach could improve long-term programme sustainability and impact. The authors emphasize that generalizability beyond central Malawi and causal impacts cannot be inferred from this qualitative evidence.

Researchers looked at how a Training the Trainers program affected health workers using simple eye care devices in central Malawi. The program trained Ophthalmic Clinical Officers and Health Surveillance Assistants to use tools like the Arclight device and Wilson loupe. This study followed them for three years to see how their work and connections changed over time.

The results showed that these low-cost devices helped workers become recognized leaders in their communities. Health Surveillance Assistants were seen as focal points for eye care, while trained officers became hubs for advice and training. These changes created strong connections between district and community levels.

However, peer-to-peer networks among health workers remained weak and informal. Communication relied mostly on phone calls and messaging apps rather than structured groups. The study also found that network activity often declined over time unless there was active reinforcement to keep things going.

Readers should understand that this study describes experiences in one specific region. It does not prove that these tools will work the same way everywhere. Future programs should focus on building strong professional networks to ensure long-term success.

What this means for you:
Low-cost tools helped workers take on new roles, but networks need active support to last.

Study Details

EvidenceLevel 5
PublishedApr 2026
View Original Abstract ↓
Background The World Health Organisation (WHO) advocates integrating primary eye care (PEC) within community health systems, supported by task-shifting and frugal technologies. While low-cost tools such as the Arclight device and Wilson anterior segment loupe have demonstrated training and diagnostic value, their long-term impact on community health worker (CHW) roles and professional networks remain poorly understood. Methods We conducted a qualitative follow-up study 3 years after implementation of an Arclight Project enabled cascade training of the trainers (ToT) PEC programme in central Malawi. Ophthalmic Clinical Officers (OCOs) trained using the Arclight training and diagnostic package subsequently cascaded PEC training to Health Surveillance Assistants (HSAs). Semi-structured interviews were undertaken 3 years later with OCOs and HSAs to explore device use, evolving professional roles, training diffusion, and communication patterns. Data were analysed thematically, informed by concepts from social network analysis to examine changes in advice-seeking, mentorship and peer collaboration. Results Frugal eye-care technologies functioned not only as diagnostic tools but as mechanisms of professional repositioning. HSAs equipped with low-cost diagnostic devices became recognised as community eye focal persons, receiving referrals from colleagues and community members. OCOs who delivered training emerged as central hubs for clinical advice and ongoing training, creating strong vertical networks between district and community levels. However, horizontal peer-to-peer networks among HSAs remained weak and largely informal. Communication relied heavily on ad-hoc phone calls and WhatsApp messaging, with limited structured communities of practice. Despite sustained use of devices and retention of key skills, network activity often declined over time without active reinforcement. Conclusions Frugal eye-care technologies act as social as well as clinical interventions, reshaping CHW networks and professional hierarchies. Designing PEC programmes with explicit attention to strengthening and sustaining professional networks, rather than focusing solely on skills transfer, may further enhance alignment with WHO Integrated People-Centred Eye Care and improve long-term programme sustainability and impact.
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