ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2016
Fiat Lux: the effect of illuminance on acuity testing.
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 23 papers.
What it found
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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.
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Who cites it
23 citing papers in PubMed.
- Preoperative Higher-Order Aberrations as Predictors of Visual Acuity Changes Following Presbyopia-Correcting (PCIOL) and Aspheric Monofocal Intraocular Lens Implantation.Clinical ophthalmology (Auckland, N.Z.) · 2026Article
- Comparing Clinical Outcomes of Various Presbyopia-Correcting Intraocular Lenses Using a Novel Composite Method for the Analysis and Reporting of Uncorrected Distance, Intermediate, and Near Visual Acuities.Ophthalmology and therapy · 2026Article
- Effects on Stereopsis Under Different Lighting Conditions.The British and Irish orthoptic journal · 2026Article
- Measuring and Correction Methods of H.-J. Haase Improve Binocular Vision in Patients with Severe Anisometropia.Journal of clinical medicine · 2025Article
- Comparison of visual functions among early and late onset myopia.Scientific reports · 2025Article
- Reliability assessment of the malay version visual comfort questionnaire for schoolchildren with visual impairment.PloS one · 2025Article
- Efficacy of enhanced monofocal intraocular lens in combined phacovitrectomy for patients with photoreceptor-preserving epiretinal membrane.Scientific reports · 2024Article
- Prevalence, sociodemographic risk factors, and coverage of myopia correction among adolescent students in the central region of Portugal.BMC public health · 2024Article
- Snellen iPad App versus Traditional Light-Box Snellen Chart in Distance Visual Acuity.Journal of pharmacy & bioallied sciences · 2024Article
- Effect of Simple Myopic Astigmatism and Its Axis on Near Visual Performance for Thai Alphabet in Pseudophakic Eyes.Clinical ophthalmology (Auckland, N.Z.) · 2024Article
- Impact of Tinted Lenses on Contrast Sensitivity, Color Vision, and Visual Reaction Time in Young Adults.Cureus · 2023Article
- Classification of Presbyopia by Severity.Ophthalmology and therapy · 2022Article
- Dynamic and Static Pupil Changes After Near Work: Comparison Between Reading a Book and Using a Smartphone.Beyoglu eye journal · 2022Article
- Using a Computerised Staircase and Incremental Optotype Sizes to Improve Visual Acuity Assessment Accuracy.The British and Irish orthoptic journal · 2022Article
- Effects of visual blur and contrast on spatial and temporal precision in manual interception.Experimental brain research · 2021Article
- Reduced Monocular Luminance Increases Monocular Temporal Synchrony Threshold in Human Adults.Investigative ophthalmology & visual science · 2020Article
- Monitoring progression of retinitis pigmentosa: current recommendations and recent advances.Expert opinion on orphan drugs · 2020Article
- The influence of age, refractive error, visual demand and lighting conditions on accommodative ability in Malay children and adults.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019Article
- Article
- Accuracy of noncycloplegic refraction performed at school screening camps.Indian journal of ophthalmology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo determine the effect of changing illuminance on visual and stereo acuity.
methodsTwenty-eight subjects aged 21 to 60 years were assessed. Monocular visual acuity (ETDRS) of emmetropic subjects was assessed under 15 different illuminance levels (50-8000 lux), provided by a computer controlled halogen lighting rig. Three levels of myopia (-0.50DS, -1.00DS & 1.50DS) were induced in each subject using lenses and visual acuity (VA) was retested under the same illuminance conditions. Stereoacuity (TNO) was assessed under the same levels of illuminance.
resultsA one log unit change in illuminance level (lx) results in a significant change of 0.060 LogMAR (p < 0.001), an effect that is exacerbated in the presence of induced myopic refractive error (p < 0.001). Stereoacuity scores demonstrate statistically significant overall differences between illuminance levels (p < 0.001).
conclusionsThe findings of this study demonstrate that changes in illuminance have a statistically significant effect on VA that may contribute to test/retest variability. Increases in illuminance from 50 to 500 lx resulted in an improved VA score of 0.12 LogMAR. Differences like these have significant clinical implications, such as false negatives during vision screening and non-detection of VA deterioration, as the full magnitude of any change may be hidden. In research where VA is a primary outcome measure, differences of 0.12 LogMAR or even less could affect the statistical significance and conclusions of a study. It is recommended that VA assessment always be performed between 400 lx and 600 lx, as this limits any effect of illuminance change to 0.012 LogMAR.
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Registered trials
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.