ArticleBMC digital health2025
Validity of digital measurement of visual acuity and contrast sensitivity in Parkinson's disease.
Article in BMC digital health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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.
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
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- The Effects of Digital Health Interventions on Motor Symptoms, Nonmotor Symptoms, and Quality of Life in Patients With Parkinson Disease: Systematic Review and Meta-Analysis of Randomized Controlled Trials.Journal of medical Internet research · 2026Pooled it
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: The Senaptec Sensory Station (SSS) is a device that can measure visual acuity (VA) and contrast sensitivity (CS), but validity has not been established in clinical populations. Therefore, we examined analytical and initial clinical validation of VA and CS measured via the SSS in Parkinson's disease (PD). Methods: SSS was used in 34 PD (aged 69.6 (SD = 9.4) years old) to measure VA (via visual clarity outcome) and CS (via SSS-CS6 and SSS-CS18 outcomes). Analytical validation was performed through comparison to reference VA and CS eye-charts (ETDRS VA, MARS CS), and clinical validation was performed through correlation with clinical measures. Results: Difference in VA LogMar score between the reference eye chart and the SSS was - 0.03 (0.23); e.g., approximately a single letter on the eye chart. There was moderate agreement between the SSS and eye chart VA measurement in PD (ICC = 0.42). Additionally, there was moderate correlation between SSS and eye chart (0.8 cpd) CS measurement in PD, specifically for SSS-CS6 (6 cpd) ( Conclusion: VA and CS can be measured with SSS in PD with moderate comparability to reference eye charts (dependent on cpd for CS), and digital outcomes may provide clinically meaningful outcomes to use in PD trials. A range of human, technological and protocol factors may impact validity of VA and CS measurement via SSS, which should be further examined in future studies.
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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.