Trials / Completed
CompletedNCT00427063
Heredity of Retinal Vessel Tortuosity
Heredity of Retinal Vessel Tortuosity - A Twin Study
- Status
- Completed
- Phase
- —
- Study type
- Observational
- Enrollment
- 218 (planned)
- Sponsor
- Glostrup University Hospital, Copenhagen · Academic / Other
- Sex
- All
- Age
- 20 Years – 46 Years
- Healthy volunteers
- Accepted
Summary
The purpose of this study is to asses the relative influence of genetic and environmental influence on the tortuosity of retinal arterioles in eyes of 218 healthy Danish twins aged 20-46 years. We expect to find a high heredity for the variation in tortuosity. This knowledge can contribute to the elucidation of the pathology in retinal diseases.
Detailed description
All persons underwent an ophthalmic examination including refraction, slit lamp biomicroscopy and digital fundus photography. Two independent graders (both with an MD degree) made a visual grading of the severity of tortuosity of the retinal arterioles in the fundus images.
Conditions
Timeline
- Start date
- 1998-01-01
- Completion
- 1998-12-01
- First posted
- 2007-01-26
- Last updated
- 2007-01-26
Locations
1 site across 1 country: Denmark
Source: ClinicalTrials.gov record NCT00427063. Inclusion in this directory is not an endorsement.