Observational studyIndian journal of ophthalmology2026
Impact of contrast sensitivity on driving behaviors in individuals with moderate-to-severe glaucoma.
Observational study in Indian journal of ophthalmology, 2026. 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
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis study aimed to investigate the relationship between contrast sensitivity (CS) and driving performance in individuals with moderate to severe glaucoma, using the Pelli-Robson (PR) chart and Spaeth/Richman Contrast Sensitivity (SPARCS) test.
designCross-sectional observational study. METHODS
settingA hospital-based study was conducted in a multi-specialty tertiary care institute. STUDY POPULATION: Forty-five non-professional drivers (90 eyes) diagnosed with moderate-to-severe glaucoma using Hodapp-Anderson-Parrish classification. Mean age (± standard deviation, in years) was 61.76 ± 10.02 with a significant male preponderance (97.8%). OBSERVATION PROCEDURES: Participants underwent a comprehensive clinical assessment, and CS was assessed using both the PR chart and SPARCS. Driving-related parameters were evaluated using the Driving Habits Questionnaire, which assessed driving difficulty, driving space, and dependency on others. Statistical analyses were performed to identify correlations between CS scores and driving parameters. PRIMARY OUTCOME: Patients with lower peripheral contrast experienced significant driving-related difficulties.
resultsSignificant correlations were observed between CS and driving behaviors in the worse eye. Lower peripheral SPARCS scores (particularly upper and lower right quadrants; ρ = 0.35-0.51, P < 0.05) were associated with reduced driving space (ρ = 0.44-0.50) and increased dependency (ρ = -0.32) and lower right scores ( ρ = -0.32, P = 0.035). Driving difficulty scores showed positive correlations with SPARCS upper right quadrant ( ρ = 0.34, P = 0.023) and lower right quadrant scores ( ρ = 0.51, P < 0.001). Driving space scores were positively correlated with PR ( ρ = 0.33, P = 0.027) and total SPARCS scores.
conclusionCS, especially in peripheral regions, is significantly associated with driving difficulties, reduced driving space, and dependency on others in individuals with glaucoma. The worse eye's CS measures have a stronger correlation with these driving-related factors. CLINICAL IMPLICATIONS: SPARCS correlates with structure and behavior, making it a holistic functional biomarker. Peripheral CS loss predicts functional self-regulation even before driving cessation. CS assessment could enhance the understanding of driving capabilities and safety, guide interventions, and driving restrictions more effectively to improve patient safety on the road.
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.