ArticlePLoS neglected tropical diseases2019
The global burden of trichiasis in 2016.
Article in PLoS neglected tropical diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The prevention and management of postoperative trachomatous trichiasis: A systematic review.Survey of ophthalmologyPooled it
- Epidemiology of eyelid disorders in an elderly population: Tehran Geriatric Eye Study.BMC ophthalmology · 2026Article
- Article
- Prevalence of Trachoma After Three Rounds of Antibiotic Mass Drug Administration in 13 Woredas of Gambella Region, Ethiopia.Ophthalmic epidemiology · 2024Article
- Article
- Tropical Data: Approach and Methodology as Applied to Trachoma Prevalence Surveys.Ophthalmic epidemiology · 2023Article
- Population Prevalence of Trachoma in Nine Rural Non-Indigenous Evaluation Units of Brazil.Ophthalmic epidemiology · 2023Article
- Perceptions of ophthalmologists on the impact of trachoma in Egypt: a mixed-methods, nationwide survey.BMC infectious diseases · 2023Article
- Associated factors of the co-occurrence of trachoma and soil-transmitted helminthiases in children 1 to 9 years old in rural communities of the Amazon basin in Loreto Department, Peru: Results from a population-based survey.PLoS neglected tropical diseases · 2022Article
- Exploring eye care pathways, patient priorities and economics in Pakistan: A scoping review and expert consultation study with thematic analysis.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2022Article
- Trachoma.Nature reviews. Disease primers · 2022Review
- GrgA overexpression inhibits Chlamydia trachomatis growth through sigmaMicrobial pathogenesis · 2021Article
- Detecting extra-ocular Chlamydia trachomatis in a trachoma-endemic community in Ethiopia: Identifying potential routes of transmission.PLoS neglected tropical diseases · 2020Article
- Ocular immune responses, Chlamydia trachomatis infection and clinical signs of trachoma before and after azithromycin mass drug administration in a treatment naïve trachoma-endemic Tanzanian community.PLoS neglected tropical diseases · 2019Article
- How much trachomatous trichiasis is there? A guide to calculating district-level estimates.Community eye health · 2019Article
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75 authors.
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Abstract
backgroundTrichiasis is present when one or more eyelashes touches the eye. Uncorrected, it can cause blindness. Accurate estimates of numbers affected, and their geographical distribution, help guide resource allocation.
methodsWe obtained district-level trichiasis prevalence estimates in adults for 44 endemic and previously-endemic countries. We used (1) the most recent data for a district, if more than one estimate was available; (2) age- and sex-standardized corrections of historic estimates, where raw data were available; (3) historic estimates adjusted using a mean adjustment factor for districts where raw data were unavailable; and (4) expert assessment of available data for districts for which no prevalence estimates were available.
findingsInternally age- and sex-standardized data represented 1,355 districts and contributed 662 thousand cases (95% confidence interval [CI] 324 thousand-1.1 million) to the global total. Age- and sex-standardized district-level prevalence estimates differed from raw estimates by a mean factor of 0.45 (range 0.03-2.28). Previously non- stratified estimates for 398 districts, adjusted by ×0.45, contributed a further 411 thousand cases (95% CI 283-557 thousand). Eight countries retained previous estimates, contributing 848 thousand cases (95% CI 225 thousand-1.7 million). New expert assessments in 14 countries contributed 862 thousand cases (95% CI 228 thousand-1.7 million). The global trichiasis burden in 2016 was 2.8 million cases (95% CI 1.1-5.2 million).
interpretationThe 2016 estimate is lower than previous estimates, probably due to more and better data; scale-up of trichiasis management services; and reductions in incidence due to lower active trachoma prevalence.
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