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Repeatability Assessment of the New Numbers Contrast Sensitivity Chart

Repeatability Assessment of the New Numbers Contrast Sensitivity Chart

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20120000006
Enrollment
Unknown
Registered
2012-05-11
Start date
2010-12-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Various Daignoses of Eye Diseases Contrast Sensitivity Visual Acuity Chart Repeatibility

Interventions

None listed

Sponsors

The Quality Improvement Fund, King Chulalongkorn Memorial Hospital, Thai Red Cross, Bangkok, Thailan
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 90 Years

Inclusion criteria

Inclusion criteria: Aged over 18 years old, able to communicate well and understand Arabic numbers

Exclusion criteria

Exclusion criteria: People who cannot read Arabic Numbers.

Design outcomes

Primary

MeasureTime frame
the mean differences of log CS At the end of study Bland-Altmand plot—

Secondary

MeasureTime frame
the coefficients of repeatability At the end of study Bland -Altmand plot—

Countries

Thailand

Contacts

Public ContactBharkbhum Khambhiphant

King Chulalongkorn Memorial Hospital

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026