ArticleJournal of current ophthalmology
The Effect of Ambient Light Intensity on Transient Changes in Refraction and Ocular Biometric Components following Near Work: A Randomized Clinical Trial.
Article in Journal of current ophthalmology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: To evaluate the effect of ambient light on transient changes in refraction and ocular biometry after near work. Methods: This single-blind, randomized clinical trial included 87 participants randomly assigned to three groups based on ambient light levels: Group 1 (100-200 lux), Group 2 (300-400 lux), and Group 3 (500-700 lux). Each participant performed 1 h of computer-based text reading at 40 cm. Objective refraction and ocular biometric parameters, including axial length (AL), keratometry, anterior chamber depth (ACD), and lens thickness, were measured before and immediately after the task. Results: The mean ± standard deviation change in spherical equivalent (SE) was -0.72 ± 0.57 diopter in Group 1, -0.39 ± 0.34 diopter in Group 2, and -0.11 ± 0.33 diopter in Group 3 ( Conclusions: Near visual tasks induce transient myopic shifts and biometric changes, primarily through axial elongation and increased lens power. This effect is influenced by ambient light, with myopic shift intensifying as light levels decrease.
Indexed as
Identifiers
What OpenQuestion holds
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.