Evidence map›Paper›PMID 20852450›Full record

ArticleOptometry and vision science : official publication of the American Academy of Optometry2010

Static and dynamic accommodation measured using the WAM-5500 Autorefractor.

Dorothy M Win-Hall, Jamie Houser, Adrian Glasser

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Optometry and vision science : official publication of the American Academy of Optometry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
  4. IMI-Instrumentation for Myopia Management.Investigative ophthalmology & visual science · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Variability of Accommodative Microfluctuations in Myopic and Emmetropic Juveniles during Sustained near Work.International journal of environmental research and public health · 2022
    Article
  10. Effect of reading with a mobile phone and text on accommodation in young adults.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
  11. Changes in accommodation dynamics after alcohol consumption, for two different doses.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Comparison of objective accommodation in phakic and pseudophakic eyes between age groups.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Article
  17. Article
  18. Clinical application of accommodating intraocular lens.International journal of ophthalmology · 2018
    Review
  19. Article
  20. Article
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

3 authors.

Dorothy M Win-HallCollege of Optometry, University of Houston, Houston, Texas 77204-2020, USA.
Jamie Houser
Adrian Glasser

Funding

Research Programming ModuleP30EY007551 · NEI · UNIVERSITY OF HOUSTON · PI VALLABH E DAS · 1988 to 2026
$16.4M
SHORT TERM TRAINING--STUDENTS IN HEALTH PROFESSIONST35EY007088 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI FRISHMAN, LAURA J. · 1985 to 2025
$2.3M
Clinical Accommodation MeasurementR01EY017076 · NEI · UNIVERSITY OF HOUSTON · PI GLASSER, ADRIAN · 2008 to 2010
$1.0M
NEI NIH HHS 1 R01 EY017076NEI NIH HHS P30 EY007551NEI NIH HHS R01 EY017076NEI NIH HHS T35 EY007088
6 · The paper itself

Abstract

purposeThis study was undertaken to compare static and dynamic accommodation measurements using the Grand Seiko WR-5500 (WAM) in young, phakic subjects.

methodsFifteen subjects, aged 20 to 28 years (23.8 ± 0.58 years; mean ± SD years) participated. Accommodation was stimulated with printed text presented at various distances. In static mode, three measurements were taken for each stimulus amplitude. In dynamic mode, 5-Hz recordings were started, and subjects alternately looked through a transparent near chart and focused on a letter chart at 6 m for 5 seconds and then focused on the near letter chart for 5 seconds for a total of 30 seconds. After smoothing the raw data, the highest three individual values recorded in each 5-s interval of focusing at near were averaged for each stimulus amplitude. Analysis of variance and Bland-Altman analysis were used to compare the static and dynamic measurements. A calibration was performed with +3.00 to -10.00 D trial lenses behind an infrared filter, in 1.00 D steps in 5 of the 15 subjects.

resultsStimulus-response graphs from static and dynamic modes were not significantly different in the lower stimulus range (<5.00 D, p = 0.93), but differed significantly for the higher stimulus amplitudes (p = 0.0027). One of the 15 subjects showed a significant difference between the static and dynamic modes. Corresponding pupil diameter could be recorded along with the accommodation responses for the subjects, and pupil diameter decreased with increasing stimulus demand. Calibration curves for static and dynamic measurements were not significantly different from the 1:1 line or from each other (p = 0.32).

conclusionsSlight differences between the dynamically and statically recorded response amplitudes were identified. This is attributed to differences in the accommodative responses in this population and not to the instrument performance. Dynamic measurement of accommodation and pupil constriction potentially provides additional useful information on the accommodative response other than simply the response amplitude.

Indexed as

Accommodation, OcularAdultAnalysis of VarianceCalibrationEquipment DesignHumansLinear ModelsModels, BiologicalPupilVision TestsYoung Adult

Identifiers

PMID20852450
PMCPMC3656507

What OpenQuestion holds

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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.