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Clinical Trials/CTRI/2025/08/092470
CTRI/2025/08/092470
Completed
Not Applicable

Effects of habitual smartphone usage patterns on accommodation and convergence among young adults.

Sankara eye hospital2 sites in 1 country81 target enrollmentStarted: August 16, 2025Last updated:

Overview

Phase
Not Applicable
Status
Completed
Enrollment
81
Locations
2
Primary Endpoint
smartphone usage patterns, convergence and accommodation will be comapred

Overview

Brief Summary

Subjects will be recruited based on the inclusion and exclusion criteria. After obtaining the informed consent , participant will undergo a baseline evaluation including history, refraction, slit-lamp examination, and accommodation and convergence assessment. Habitual smartphone usage patterns will be assessed by recording device features, measuring usual reading distance and posture through unobtrusive photographs, and administering a structured questionnaire covering type of tasks, average daily screen time, duration of continuous use, use of spectacles, smartphone use at bedtime with lights off, and any eye strain or visual discomfort experienced after digital device use. This study aims to evaluate smartphone usage patterns and their impact on accommodation and convergence. The findings may help to develop standard ergonomic guidelines for smartphone use.

Study Design

Study Type
Observational

Eligibility Criteria

Ages
18.00 Year(s) to 35.00 Year(s) (—)
Sex
All

Inclusion Criteria

  • BCVA (OU) 0.0 logMAR and N6.

Exclusion Criteria

  • Ocular pathologies (anterior/posterior segment diseases) History of ocular surgery Amblyopia, Stabismus and Ocular motility dysfunction.

Outcomes

Primary Outcomes

smartphone usage patterns, convergence and accommodation will be comapred

Time Frame: All datas will be collected in single visit

Secondary Outcomes

  • the findings may help to develop standard ergonomics guidelines for smartphone use.(All assessments done in only single visit)

Investigators

Sponsor Class
Research institution and hospital
Responsible Party
Principal Investigator
Principal Investigator

Sanila Lawrance

sankara eye hospital,bangalore

Study Sites (2)

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