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Testing the suitability of the Vision Impairment in Low Luminance (VILL) questionnaire for assessing subjective visual function and vision-related quality of life in people with diabetic eye changes and glaucoma

Testing the suitability of the Vision Impairment in Low Luminance (VILL) questionnaire for assessing subjective visual function and vision-related quality of life in people with diabetic eye changes and glaucoma

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00033399
Enrollment
340
Registered
2024-01-16
Start date
2024-02-22
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

Code: E10.30+H36.0 Code: E11.30+H36.0 H40.1 H40.2

Interventions

Group 1: Testing the suitability of the content and methodology of an existing measurement instrument (VILL) in people with diabetic eye changes. The suitability of the content is tested using non-sta

Sponsors

Universitäts-Augenklinik Bonn
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: o Consenting adults (= 18 years) with diabetes with and without diabetic eye changes or o Consenting adults (= 18 years of age) with glaucoma

Exclusion criteria

Exclusion criteria: o Adults with insufficient understanding of the German language o Children and young people (< 18 years) o Inability to participate due to an additional disability (e.g. severe mental retardation) o Other serious mental illnesses o Others (e.g. people in closed institutions / in prison)

Design outcomes

Primary

MeasureTime frame
Testing the content and methodological suitability of the VILL questionnaire in people with diabetic eye changes and glaucoma.—

Countries

Germany

Contacts

Public ContactJan H. Terheyden

Universitäts-Augenklinik Bonn

Jan.Terheyden@ukbonn.de+49 (0)228 / 287 - 198

Outcome results

None listed

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