ArticleInternational health2023
Comparing image quality and trachoma detection across three camera types from a survey in Kongwa, Tanzania.
Article in International health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 3 citations in OpenAlex.
- Training Data Recorders with a Manual to Take High-Quality Trachoma Photographs in South Sudan.The American journal of tropical medicine and hygiene · 2026Article
- Case study: Gait assessment of a patient with hallux rigidus before and after plantar modification.International journal of surgery case reports · 2024Article
- Addressing the challenges of reaching trachoma elimination: leveraging on lessons learnt from programme implementation.International health · 2023Article
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Authors and funding
6 authors at 2 institutions in 1 country.
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Abstract
backgroundThere is an increasing demand for photography for trachoma prevalence surveys. In previous studies, digital single lens reflex (DSLR) images were superior to smartphone images, but newer-model smartphones and/or lens attachments may be able to bridge this gap. This study compares the image quality and ability to detect trachomatous inflammation - follicular (TF) of three camera types: a DSLR Nikon camera, an iPhone SE and an iPhone 13 Pro with a cell scope.
methodsWe surveyed 62 children ages 1-7 y from two Tanzanian communities. Upper tarsal conjunctiva images of both eyes were graded for TF by two standardized graders. The McNemar's test and a logistic regression model were used for analyses.
resultsThe DSLR camera malfunctioned during the study, thus the iPhone SE and iPhone 13 Pro with cell scope were both more likely to take high-quality, gradable photographs (88% and 86%, respectively) compared with the DSLR camera (69%) (p<0.001 and p=0.02, respectively). TF was detected in gradable images from the iPhone SE (8.8%) and iPhone 13 Pro with cell scope (9.0%) at the same rate (p=1.0) as images from the DSLR camera (9.7%).
conclusionSmartphones with high-quality image capture, like the iPhone SE/13 Pro, have the potential for use in trachoma surveys if the proportion of gradable images can be improved.
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