Evidence map›Paper›PMID 31786198›Full record

ArticleVision research2020

Effect of duration, and temporal modulation, of monochromatic light on emmetropization in chicks.

Gregory Lin, Christopher Taylor, Frances Rucker

Abstract read
In one paragraph

Article in Vision research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. The influence of the environment and lifestyle on myopia.Journal of physiological anthropology · 2024
    Review
  8. Article
  9. Article
  10. Light Signaling and Myopia Development: A Review.Ophthalmology and therapy · 2022
    Review
  11. Article
  12. Article
  13. Parasympathetic innervation of emmetropization.Experimental eye research · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. [Relationship between Myopia and Light Exposure].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2021
    Review
  18. Amber light treatment produces hyperopia in tree shrews.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2021
    Article
  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.

Gregory LinNew England College of Optometry, Dept. of Biomedical Science, 424 Beacon St., Boston, MA 0211, United States.
Christopher TaylorNew England College of Optometry, Dept. of Biomedical Science, 424 Beacon St., Boston, MA 0211, United States.
Frances RuckerNew England College of Optometry, Dept. of Biomedical Science, 424 Beacon St., Boston, MA 0211, United States. Electronic address: ruckerf@neco.edu.

Funding

Cone sensitivity to temporal changes in color and luminance and the development of myopiaR01EY023281 · NEI · NEW ENGLAND COLLEGE OF OPTOMETRY · PI RUCKER, FRANCES JOAN · 2015 to 2019
$1.5M
SHORT TERM RES TRAINING AT THE NEW ENGLAND COLLEGE OFT35EY007149 · NEI · NEW ENGLAND COLLEGE OF OPTOMETRY · PI Athanasios Panorgias · 1999 to 2026
$1.5M
NEI NIH HHS R01 EY023281
6 · The paper itself

Abstract

Previous experiments disagree on the effect of monochromatic light on emmetropization. Some species respond to wavelength defocus created by longitudinal chromatic aberration and become more myopic in monochromatic red light and more hyperopic in monochromatic blue light, while other species do not. Using the chicken model, we studied the effect of the duration of light exposure, modes of lighting, and circadian interruption on emmetropization in monochromatic light. To achieve this goal, we exposed one-week-old chicks to flickering or steady monochromatic red or blue light for a short (10 days) or long (17 days) duration; other chicks were exposed to white light for 10 days. Refraction and ocular biometry were measured. Activity was measured via a motion detection algorithm and an IR camera. The results showed that in both steady and flickering light, there was a greater increase in axial length and vitreous chamber depth in chicks exposed to red or white light compared to chicks exposed to blue light. With a longer duration of exposure, axial length and vitreous chamber depth differences were no longer observed, except at an intermediate time point. Chicks exposed to red light were more active during the day compared to chicks exposed to blue light. We conclude that our results indicate that with short duration monochromatic light exposure, chicks rely on wavelength defocus to guide emmetropization. With longer exposure from hatching, our results support the notion that responses to wavelength defocus can be transient and that the difference between species may be due to differences in experimental duration and/or interference with circadian activity rhythms.

Indexed as

LightAnimalsAxial Length, EyeBiometryChickensCircadian RhythmEmmetropiaRefraction, OcularTime FactorsAgeEmmetropizationMonochromatic lightMyopiaTemporal

Identifiers

PMID31786198
PMCPMC6936105

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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.