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Construction & Validation of A Contrast Sensitivity Chart at Various Levels of Visual Acuity

A Novel Contrast Sensitivity Chart At Various Levels Of Visual Acuity- Construction & Validation

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2021/11/037900
Enrollment
54
Registered
2021-11-10
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Control Intervention1: NIL: NIL

Sponsors

Ms Namratha
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: BCVA better than or equal to 0.0logMAR, N6 Emmetropes Mild to Moderate of refractive error Myopia - SER(-1.00 to -6.00D) Hyperopia - SER(+1.00 to +5.00D)

Exclusion criteria

Exclusion criteria: With Pathological conditions Media opacity Active ocular infection Amblyopia/Strabismus Post refractive surgery

Design outcomes

Secondary

MeasureTime frame
Contrast sensitivity of normal population with novel chartTimepoint: One year—

Primary

MeasureTime frame
New Contrast sensitivity chart with varying visual acuityTimepoint: One year—

Countries

India

Contacts

Public ContactNamratha

Sankara College of Optometry

namratha.hegde@gmail.com9986266576

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026