Evidence map›Paper›PMID 33799131›Full record

ArticleVision research2021

The development of and recovery from form-deprivation myopia in infant rhesus monkeys reared under reduced ambient lighting.

Zhihui She, Li-Fang Hung, Baskar Arumugam, Krista M Beach, Earl L Smith

Open access · hybridAbstract read
In one paragraph

Article in Vision research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 22 citations in OpenAlex.

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  17. Animal modeling for myopia.Advances in ophthalmology practice and research
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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

5 authors at 2 institutions in 2 countries.

Zhihui SheCollege of Optometry, University of Houston, Houston, TX, United States.
Li-Fang HungCollege of Optometry, University of Houston, Houston, TX, United States; Brien Holden Vision Institute, Sydney, NSW, Australia.
Baskar ArumugamCollege of Optometry, University of Houston, Houston, TX, United States; Former employee of University of Houston, Houston, TX, United States.
Krista M BeachCollege of Optometry, University of Houston, Houston, TX, United States.
Earl L SmithCollege of Optometry, University of Houston, Houston, TX, United States; Brien Holden Vision Institute, Sydney, NSW, Australia. Electronic address: esmith@uh.edu.
University of Houston · USBrien Holden Vision Institute · AU

Funding

Research Programming ModuleP30EY007551 · NEI · UNIVERSITY OF HOUSTON · PI VALLABH E DAS · 1988 to 2026
$16.4M
Optically Induced AnisometropiasR01EY003611 · NEI · UNIVERSITY OF HOUSTON · PI Lisa A Ostrin · 1985 to 2026
$11.1M
NEI NIH HHS P30 EY007551NEI NIH HHS R01 EY003611
6 · The paper itself

Abstract

Although reduced ambient lighting ("dim" light) can cause myopia in emmetropizing chicks, it does not necessarily lead to myopic changes in emmetropizing rhesus monkeys. Because myopia is rarely spontaneous, a question remained whether dim light would hasten the progression of visually induced myopia. To determine the effects of dim light on the development of and recovery from form-deprivation myopia (FDM), seven 3-week-old infant rhesus monkeys were reared under dim light (mean ± SD = 55 ± 9 lx) with monocular diffuser spectacles until ~154 days of age, then maintained in dim light with unrestricted vision until ~337 days of age to allow for recovery. Refractive errors, corneal powers, ocular axial dimensions and sub-foveal choroidal thicknesses were measured longitudinally and compared to those obtained from form-deprived monkeys reared under typical laboratory lighting (504 ± 168 lx). Five of the seven subjects developed FDMs that were similar to those observed among their normal-light-reared counterparts. The average degree of form-deprivation-induced myopic anisometropia did not differ significantly between dim-light subjects (-3.88 ± 3.26D) and normal-light subjects (-4.45 ± 3.75D). However, three of the five dim-light subjects that developed obvious FDM failed to exhibit any signs of recovery and the two monkeys that were isometropic at the end of the treatment period manifest abnormal refractive errors during the recovery period. All refractive changes were associated with alterations in vitreous chamber elongation rates. It appears that dim light is not a strong myopiagenic stimulus by itself, but it can impair the optical regulation of refractive development in primates.

Indexed as

LightingMyopiaAnimalsCorneaEyeMacaca mulattaRefraction, OcularSensory DeprivationAmbient light levelDim lightEmmetropizationForm-deprivationMyopiaNon-human primates

Identifiers

PMID33799131
PMCPMC8058302
OpenAlexW3152208575

What OpenQuestion holds

Textmetadata
LicenceTDM
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.