Smartphone attachment enables remote cataract screening in rural areas

Researchers have developed a low-cost smartphone attachment designed to screen for cataracts and other eye diseases in remote, underserved communities. The device, which includes a magnifying lens, two white LEDs, and a silicone scope, clips onto a smartphone camera to capture diagnostic-quality images. The entire system costs less than £150, including the phone.

Presented at the 44th Congress of the European Society of Cataract and Refractive Surgeons, the study showed a high level of agreement between remote screenings using the device and in-person examinations conducted by ophthalmologists. This technology aims to address the limitations of traditional ‘eye camps’—temporary outreach clinics that are often expensive, logistically complex, and reach only a small fraction of those in need.

Developed by a team including Dr. Prabhu Krishna Ravilla of Aravind Eye Hospital and researchers from Johns Hopkins University, the tool could allow community health workers with minimal training to identify patients requiring surgery. This is particularly significant for women, the elderly, and impoverished populations in low-resource settings where access to specialists is severely limited.