The aim of this study is to use different non-invasieve techniques to measure the spatial distribution of the macular pigment and its possibly relation with retinal structure and contrast sensitivity.
ID
Source
Brief title
Condition
- Ocular structural change, deposit and degeneration NEC
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
The spatial distribution of the macular pigment
Retinal thickness
Contrast sensitivity
Secondary outcome
not applicable
Background summary
Lutein and zeaxanthin are the only carotenoids present in the macular pigment
(MP) of the retina. Its exact meaning is unknown. Two hypothse have been put
forward. 1. To minimize chromatic abbeartion (Acuity Hypothesis); 2. To protect
agains age related macular deganeration. Although both unproven yet, may
supplements do contain already large amounts of lutein and/or zeaxanthin.
Study objective
The aim of this study is to use different non-invasieve techniques to measure
the spatial distribution of the macular pigment and its possibly relation with
retinal structure and contrast sensitivity.
Study design
Cross-sectionele study.
Study burden and risks
A session takes one hour per subject.
Due to the tropicamide used to ensure pupil dilation, driving of a car must be
postponed for another two hours.
There are no riscs. The use of the mydriatitum is 'standard procedure' in
ophthalmology without any additional risks.
Postbus 5800
6202 AZ Maastricht
Nederland
Postbus 5800
6202 AZ Maastricht
Nederland
Listed location countries
Age
Inclusion criteria
aged 18 years and older
visual acuity > 0.5
Exclusion criteria
no known eye disease
Design
Recruitment
Medical products/devices used
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL15898.068.07 |