Evidence map›Paper›PMID 26968720›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2016

Factors influencing the pupillary light reflex in healthy individuals.

Sourabh Sharma, Mani Baskaran, Annadata V Rukmini, Monisha E Nongpiur, HlaMyint Htoon, Ching-Yu Cheng, Shamira A Perera, Joshua J Gooley, Tin Aung, Dan Milea

Abstract read
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In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

33 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
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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

10 authors at 4 institutions in 1 country.

Sourabh SharmaSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
Mani BaskaranSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
Annadata V RukminiProgram in Neuroscience and Behavioral Disorders, Duke-NUS Medical School, Singapore, Singapore.
Monisha E NongpiurSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
HlaMyint HtoonSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
Ching-Yu ChengSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
Shamira A PereraSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
Joshua J GooleyProgram in Neuroscience and Behavioral Disorders, Duke-NUS Medical School, Singapore, Singapore.
Tin AungSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore.
Dan MileaSingapore Eye Research Institute, 11, Third Hospital Avenue #5-00, SNEC Building, Singapore, 168751, Singapore. dan.milea@snec.com.sg.
Singapore National Eye Center · SGSingapore Eye Research Institute · SGSingapore College of Traditional Chinese Medicine · SGDuke-NUS Medical School · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine the ocular anatomical factors influencing the pupillary light reactions to different wavelengths of light, measured with chromatic pupillometry.

methodsCommunity-based, cross-sectional study including subjects with normal ocular health (ages 50-79 years). Direct pupillary responses to continuously increasing irradiances (6.8 to 13.8 log photons cm(-2) s(-1)) of red (631 nm) and blue (469 nm) light were measured, using a dedicated infrared pupillometer. All subjects underwent swept source optical coherence tomography (SS-OCT, CASIA SS-1000, Tomey Corporation, Nagoya, Japan) and noncontact partial coherence laser interferometry (Lenstar LS900, Haag-Streit AG, Switzerland). Univariate and multivariable regression analyses were performed to determine the anatomical features influencing pupillographic parameters.

resultsAmong the 177 included subjects, 167 (94.4 %) were Chinese and 116 (65.5 %) female. The average baseline pupil diameter in darkness (β = -0.080, p < 0.001) and the amplitude of the relative pupillary constriction (β = -0.233, p = 0.006) to blue light decreased with age. The amplitude of pupillary constriction was significantly larger in patients with a thinner iris, in response to stimulation with blue (β = -0.321, p < 0.001) and red light (β = -0.336, p < 0.001). Other ocular parameters (i.e., lens vault, anterior chamber depth width, iris volume, iris curvature, and lens thickness) were not significantly associated with pupillometric outcomes.

conclusionsThe amplitude of the pupillary light constriction to chromatic photic stimuli is reduced with increasing age and iris thickness in subjects with normal ocular health, a finding which needs to be integrated into future pupillometric studies.

Indexed as

Visual FieldsAgedAnterior ChamberCross-Sectional StudiesFemaleGonioscopyHumansIntraocular PressureMaleMiddle AgedPupilReference ValuesReflex, PupillaryTomography, Optical CoherenceIntrinsically photosensitive retinal ganglion cellsIris thicknessPupilPupillary light reflexPupillometry

Identifiers

PMID26968720
OpenAlexW2294111498

What OpenQuestion holds

Textmetadata
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.