Evidence map›Paper›PMID 26795295›Full record

ArticleOphthalmology2016

Associations with Intraocular Pressure in a Large Cohort: Results from the UK Biobank.

Michelle P Y Chan, Carlota M Grossi, Anthony P Khawaja, Jennifer L Y Yip, Kay-Tee Khaw, Praveen J Patel, Peng T Khaw, James E Morgan, Stephen A Vernon, Paul J Foster and 1 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 2 pooled it
10.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 2 syntheses or guidelines pooled it, 127 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Clinical parameters associated with blood pressure in patients with primary open-angle glaucoma and exfoliation glaucoma.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Observational
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Effects of ambient atmospheric pressure on intraocular pressure measured using a Goldman applanation tonometer in normal eyes under ordinary conditions.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 1 country.

Michelle P Y ChanNIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom.
Carlota M GrossiNIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom.
Anthony P KhawajaDepartment of Public Health & Primary Care, University of Cambridge, Cambridge, United Kingdom.
Jennifer L Y YipDepartment of Public Health & Primary Care, University of Cambridge, Cambridge, United Kingdom.
Kay-Tee KhawDepartment of Public Health & Primary Care, University of Cambridge, Cambridge, United Kingdom.
Praveen J PatelNIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom.
Peng T KhawNIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom.
James E MorganSchool of Optometry & Vision Sciences, Cardiff University, Cardiff, United Kingdom.
Stephen A VernonDepartment of Ophthalmology, Nottingham University Hospital NHS Trust, Nottingham, United Kingdom.
Paul J FosterNIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, United Kingdom. Electronic address: p.foster@ucl.ac.uk.
UK Biobank Eye and Vision Consortium
Moorfields Eye Hospital NHS Foundation Trust · GBUniversity of Cambridge · GBCardiff University · GBNottingham University Hospitals NHS Trust · GBUniversity College London · GB

Funding

British Heart FoundationDepartment of Health BRC2_009Department of Health CS-2014-14-023Medical Research Council G1000143Medical Research Council G1001939Medical Research Council G1001939/1Medical Research Council MC_QA137853Medical Research Council MR/K006584/1Medical Research Council MR/L023784/2Wellcome Trust 093707Wellcome Trust 094791/Z/10/Z
6 · The paper itself

Abstract

purposeTo describe the associations of physical and demographic factors with Goldmann-correlated intraocular pressure (IOPg) and corneal-compensated intraocular pressure (IOPcc) in a British cohort.

designCross-sectional study within the UK Biobank, a large-scale multisite cohort study in the United Kingdom.

participantsWe included 110 573 participants from the UK Biobank with intraocular pressure (IOP) measurements available. Their mean age was 57 years (range, 40-69 years); 54% were women, and 90% were white.

methodsParticipants had 1 IOP measurement made on each eye using the Ocular Response Analyzer noncontact tonometer. Linear regression models were used to assess the associations of IOP with physical and demographic factors.

main outcome measuresThe IOPg and IOPcc.

resultsThe mean IOPg was 15.72 mmHg (95% confidence interval [CI], 15.70-15.74 mmHg), and the mean IOPcc was 15.95 mmHg (15.92-15.97 mmHg). After adjusting for covariates, IOPg and IOPcc were both significantly associated with older age, male sex, higher systolic blood pressure (SBP), faster heart rate, greater myopia, self-reported glaucoma, and colder season (all P < 0.001). The strongest determinants of both IOPg and IOPcc were SBP (partial R(2): IOPg 2.30%, IOPcc 2.26%), followed by refractive error (IOPg 0.60%, IOPcc 1.04%). The following variables had different directions of association with IOPg and IOPcc: height (-0.77 mmHg/m IOPg; 1.03 mmHg/m IOPcc), smoking (0.19 mmHg IOPg, -0.35 mmHg IOPcc), self-reported diabetes (0.41 mmHg IOPg, -0.05 mmHg IOPcc), and black ethnicity (-0.80 mmHg IOPg, 0.77 mmHg IOPcc). This suggests that height, smoking, diabetes, and ethnicity are related to corneal biomechanical properties. The increase in both IOPg and IOPcc with age was greatest among those of mixed ethnicities, followed by blacks and whites. The same set of covariates explained 7.4% of the variability of IOPcc but only 5.3% of the variability of IOPg.

conclusionsThis analysis of associations with IOP in a large cohort demonstrated that some variables clearly have different associations with IOPg and IOPcc, and that these 2 measurements may reflect different biological characteristics.

Indexed as

Tonometry, OcularAdultAgedAgingBlood PressureBody Mass IndexCohort StudiesCorneaCross-Sectional StudiesDatabases, FactualFemaleHeart RateHumansIntraocular PressureMaleMiddle Aged

Identifiers

PMID26795295
PMCPMC4819446
OpenAlexW2254999921

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.