ArticleKorean journal of ophthalmology : KJO2021
Methodology and Rationale for Ophthalmic Examinations in the Seventh and Eighth Korea National Health and Nutrition Examination Surveys (2017-2021).
Article in Korean journal of ophthalmology : KJO, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 24 citations in OpenAlex.
- Axial Length-Adjusted Normative Reference Values for Retinal Layer Thickness in a Population-Based OCT Study.Translational vision science & technology · 2026Article
- Data-Driven Redefinition of Normal Intraocular Pressure in Nonglaucomatous Korean Adult Population.Ophthalmology science · 2026Article
- Intermittent Fasting and Risk of Diabetic Retinopathy: Retrospective Data from the National Health and Nutrition Examination Survey.Nutrients · 2026Article
- Associations of nutritional intake and body mass index with branch retinal vein occlusion: A cross-sectional study using data from a Korean national survey.Science progress · 2026Article
- Risk Factors and Quality of Life in Patients With Geographic Atrophy, a Late Stage of Age-Related Macular Degeneration: Findings From the Korea National Health and Nutrition Examination Survey.Journal of Korean medical science · 2026Article
- Nationwide Trends and Future Projections of Diabetes and Diabetic Retinopathy Prevalence in Korea: Korean National Health and Nutrition Examination Survey Study.Journal of Korean medical science · 2026Article
- Article
- Sleep duration modifies the association between obstructive sleep apnea risk and glaucoma: evidence from the Korea National Health and Nutrition Examination Survey.Eye and vision (London, England) · 2025Article
- Association between normal tension glaucoma and the risk of obstructive sleep apnoea using the STOP-Bang questionnaire.Eye (London, England) · 2025Article
- Sufficient Magnesium Intake Reduces Retinal Vein Occlusion Risk: National Health and Nutrition Examination Survey Analysis.Nutrients · 2025Article
- Prevalence and risk factors of undiagnosed age-related macular degeneration: the Korea National Health and Nutrition Examination Survey 2017-2020.Scientific reports · 2025Article
- Retinal vein occlusion risk prediction without fundus examination using a no-code machine learning tool for tabular data: a nationwide cross-sectional study from South Korea.BMC medical informatics and decision making · 2025Article
- Automated and code-free development of a risk calculator using ChatGPT-4 for predicting diabetic retinopathy and macular edema without retinal imaging.International journal of retina and vitreous · 2025Article
- Development of a novel scoring system for glaucoma risk based on demographic and laboratory factors using ChatGPT-4.Medical & biological engineering & computing · 2025Article
- Association between obstructive sleep apnea and glaucoma.Korean journal of family medicine · 2025Article
- A machine learning-based prediction of diabetic retinopathy using the Korea national health and nutrition examination survey (2008-2012, 2017-2021).Frontiers in medicine · 2025Article
- Association Between High Blood Folate Levels and Glaucoma in a Representative Korean Population.Investigative ophthalmology & visual science · 2024Article
- Suicide risk in juvenile open angle glaucoma patients.International journal of ophthalmology · 2024Article
- Metabolic syndrome as an independent risk factor for glaucoma: a nationally representative study.Diabetology & metabolic syndrome · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
23 authors at 18 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This report provides a detailed description of the methodology for ophthalmic examinations according to the Korea National Health and Nutrition Examination Survey (KNHANES) VII and VIII (from 2017 to 2021). The KNHANES is a nationwide survey which has been performed since 1998 in representatives of whole Korean population. During the KNHANES VII and VIII, in addition to the ophthalmic questionnaire, intraocular pressure measurement, visual field test, auto refractometry, axial length and optical coherence tomography measurements were included. This new survey will provide not only provide normative and pathologic ophthalmic data including intraocular pressure, refractive error, axial length, visual field and precise measurement of anterior segment, macula and optic nerve with optical coherence tomography, but also a more accurate diagnosis for major adult blindness diseases, including age-related macular degeneration, diabetic retinopathy, glaucoma, and other ocular diseases, for the national Korean population.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.