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Comparative Efficacy of Duochrome Test Verse +1 Blur Test in Detecting Refracting Error Across Different Ages

StatusActive, Not Recruiting
PhaseNot applicable
Started
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Record status
This record was last updated July 16, 2025 (before its estimated August 1, 2025 completion). Its status may not reflect the trial's current state.

Record History

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  1. Primary endpoints: 1 to 3v2 Show 5 more changesShow less
    • Interventions: Duochrome Test (Diagnostic Test), duochrome test and +1 blur test (Combination Product) to duochrome test and +1 blur test (Diagnostic Test)
    • Eligibility criteria revised
    • Study description expanded, about 51 words
    • Study site revised
    • Study title shortened, about 4 words
  2. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
The comparative efficacy of the duochrome test versus +1 blur test in detecting refractive errors across different ages remains under-explored in current ophthalmic research. While the duochrome test is widely used to refine prescriptions, its standalone effectiveness compared to +1 blur test based refraction has not been thoroughly investigated.
Trial Details
NCT Number NCT07001124
Lead Sponsor Superior University
Conditions
(from sponsor)		 Refractive Errors
Related terms Refractive Errors
Enrollment 33 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov