Evidence map›Paper›PMID 19146280›Full record

ArticleJournal of vision2008

Cues for the control of ocular accommodation and vergence during postnatal human development.

Shrikant R Bharadwaj, T Rowan Candy

Abstract read
In one paragraph

Article in Journal of vision, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
–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

37 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Clinical test responses to different orthoptic exercise regimes in typical young adults.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2014
    Trial
  3. Article
  4. Article
  5. Accommodative and Vergence Responses to a Moving Stimulus in Concussion.Investigative ophthalmology & visual science · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Spasm of Near Reflex: Objective Assessment of the Near-Triad.Investigative ophthalmology & visual science · 2020
    Article
  13. Article
  14. Calibration of the PlusOptix PowerRef 3 with change in viewing distance, adult age and refractive error.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2019
    Article
  15. Article
  16. Two-dimensional simulation of eccentric photorefraction images for ametropes: factors influencing the measurement.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2018
    Article
  17. Article
  18. Blur Detection, Depth of Field, and Accommodation in Emmetropic and Hyperopic Children.Optometry and vision science : official publication of the American Academy of Optometry · 2018
    Article
  19. The Response AC/A Ratio Before and After the Onset of Myopia.Investigative ophthalmology & visual science · 2017
    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

2 authors.

Shrikant R BharadwajIndiana University School of Optometry, Bloomington, IN 47405, USA. srbharad@indiana.edu
T Rowan Candy

Funding

Accommodation and Defocus in the Infant Visual SystemR01EY014460 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI CANDY, T ROWAN · 2003 to 2025
$7.5M
Short-Term Research Training For Optometry StudentsT35EY013937 · NEI · TRUSTEES OF INDIANA UNIVERSITY · PI MILLER, DONALD T · 2001 to 2021
$717k
NEI NIH HHS K12 EY01550NEI NIH HHS R01 EY014460NEI NIH HHS T35 EY013937
6 · The paper itself

Abstract

Accommodation and vergence help maintain single and focused visual experience while an object moves in depth. The relative importance of retinal blur and disparity, the primary sensory cues to accommodation and vergence, is largely unknown during development; a period when growth of the eye and head necessitate continual recalibration of egocentric space. Here we measured the developmental importance of retinal disparity in 192 typically developing subjects (1.9 months to 46 years). Subjects viewed high-contrast cartoon targets with naturalistic spatial frequency spectra while their accommodation and vergence responses were measured from both eyes using a PowerRefractor. Accommodative gain was reduced during monocular viewing relative to full binocular viewing, even though the fixating eye generated comparable tracking eye movements in the two conditions. This result was consistent across three forms of monocular occlusion. The accommodative gain was lowest in infants and only reached adult levels by 7 to 10 years of age. As expected, the gain of vergence was also reduced in monocular conditions. When 4- to 6-year-old children read 20/40-sized letters, their monocular accommodative gain reached adult-like levels. In summary, binocular viewing appears necessary under naturalistic viewing conditions to generate full accommodation and vergence responses in typically developing humans.

Indexed as

Human DevelopmentAccommodation, OcularAdolescentAdultChildChild, PreschoolConvergence, OcularCuesHumansInfantInfant, NewbornMiddle AgedPhotic StimulationSpace PerceptionVision, BinocularVision Disparity

Identifiers

PMID19146280
PMCPMC2643357

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Registered trials

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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.