Development of a new colour-vision test chart

Development of a new colour-vision test chart - Novel colour-vision test chart development

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000024851

Enrollment

Registered

2016-11-17

Start date

2017-03-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Colour vision abnormality

Interventions

1)Ishihara test plates 2)Farnsworth Panel D15 test 3)Lanthony D15 test 4)Novel colour-vision test chart developed in this study Tests 1) to 3) are performed once each on every subject, test 4) wil

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Those diagnosed as having hereditary colour-vision abnormality in the past using currently available colour vision tests.

Exclusion criteria

Exclusion criteria: 1)Those diagnosed with abnormality within the visual system other than colour vision abnormality. 2)Those diagnosed with Diabetes mellitus.

Design outcomes

Primary

Measure	Time frame
Comparison of test results of the following 4 tests. 1)Ishihara test plates 2)Farnsworth Panel D15 test 3)Lanthony D15 test 4)Novel colour test chart developed in this study	—

Countries

Japan

Contacts

Public ContactAya Ohira

National Center for Global Health and Medicine Ophthalmology department

aohira@hosp.ncgm.go.jp+81-3-3202-7181

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026