The objectives of this study is to determine The influence of dynamic light conditions on visual function of glaucoma patients.
Bron
Verkorte titel
Aandoening
Glaucoma
Ondersteuning
Onderzoeksproduct en/of interventie
Geen registraties gevonden.
Uitkomstmaten
Primaire uitkomstmaten
Measurement of contrast sensitivity on a time varying background.
Achtergrond van het onderzoek
To determine the influence of dynamic light conditions on visual functioning in glaucoma. For this purpose we measure (1) the contrast sensitivity to a small stimulus at a time-varying background luminance and (2) the critical fusion frequency (CFF), which is the highest frequency of flicker that can be distinguished from steady state (temporal sensitivity), as a function of background luminance.
Doel van het onderzoek
The objectives of this study is to determine The influence of dynamic light conditions on visual function of glaucoma patients.
Onderzoeksopzet
Cross-sectional
Onderzoeksproduct en/of interventie
None
Publiek
Wetenschappelijk
Belangrijkste voorwaarden om deel te mogen nemen (Inclusiecriteria)
Glaucoma patients (age 40-70) from the outpatient clinic ophthalmology UMCG, who provide written informed consent.
Healthy subjects (age 18-70) who have signed in, without ophthalmic abnormalities and provide written informed consent.
Belangrijkste redenen om niet deel te kunnen nemen (Exclusiecriteria)
- Visual acuity below 1.0 (below 50 years of age) or below 0.8 (above 50 years of age).
- Visual field defects not caused by glaucoma
Healthy subjects:
- Subjects with an eye disease.
- Subjects with a first degree relative with glaucoma, or with high eye pressure in the past.
- Visual acuity below 1.0 (below 50 years of age) or below 0.8 (above 50 years of age).
- Visual field defects which are not understood
Opzet
Deelname
Opgevolgd door onderstaande (mogelijk meer actuele) registratie
Geen registraties gevonden.
Andere (mogelijk minder actuele) registraties in dit register
Geen registraties gevonden.
In overige registers
Register | ID |
---|---|
NTR-new | NL6342 |
NTR-old | NTR6526 |
CCMO | NL61403 |