FindTrial
Sign In

Effect of colored filter lenses on contrast sensitivity in low vision patients.

Effect of colored filter lenses on contrast sensitivity in low vision patients.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20190507003
Enrollment
30
Registered
2019-05-07
Start date
2019-05-01
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

Low vision patients low vision &#44

Interventions

Low vision patients in Low vision clinic at Chulalongkorn hospital who bested corrected visual acuity better than 20/400
Supportive Care
Low vision patients

Sponsors

Ratchadapiseksomphot Fund
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Visual acuity:Best corrected visual acuity better than 20/400

Exclusion criteria

Exclusion criteria: Illiterate Mental retardation

Design outcomes

Primary

MeasureTime frame
change in contrast sensitivity At that time Generalized estimating equations (GEE)—

Secondary

MeasureTime frame
subjective improvement At that time Fisher exact—

Countries

Thailand

Contacts

Public ContactChanapa Charussuriyong

Chulalongkorn university

chanapanacha@gmail.com0864009082

Outcome results

None listed

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