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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ClinicalTrials.gov
Last refreshed on: 11 July 2016
Main ID:  NCT02767284
Date of registration: 04/05/2016
Prospective Registration: Yes
Primary sponsor: Uppsala University
Public title: A Comparative Study of Six Methods to Measure Human Contrast Vision
Scientific title: UCST Studie 1 - Jämförande Studie Mellan några Befintliga Och Nyutvecklade Metoder för Att mäta Den Spektrala kontrastkänslighetsfunktionen Hos människa
Date of first enrolment: June 2016
Target sample size: 40
Recruitment status: Recruiting
URL:  https://clinicaltrials.gov/show/NCT02767284
Study type:  Interventional
Study design:  Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Diagnostic  
Phase:  N/A
Countries of recruitment
Sweden
Contacts
Name:     Lars Malmqvist, M.D
Address: 
Telephone: +46186115135
Email: lars.malmqvist@neuro.uu.se
Affiliation: 
Name:     Prof. Per Söderberg, M.D PhD
Address: 
Telephone:
Email:
Affiliation:  Uppsala University
Key inclusion & exclusion criteria

Inclusion Criteria:

- Normal best corrected visual acuity: LogMAR = 0

- No current or previous eye disease in either eye.

- Student at Uppsala University

Exclusion Criteria:

- Previous surgery in any eye

- Inability to follow the test procedure.



Age minimum: 18 Years
Age maximum: N/A
Gender: Both
Health Condition(s) or Problem(s) studied
Methods to Measure Contrast Vision
Intervention(s)
Device: Quick-CSF (QCSF)
Device: UCST-V3
Device: UCST-V2
Device: Optec 6500
Device: Pelli-Robson
Device: UCST-V1
Primary Outcome(s)
Average area under the curve for the log contrast sensitivity function (AULCSF) in one eye for each method [Time Frame: At end of data collection (up to 12 months after first subject is included)]
Average time (in seconds) used to measure the contrast sensitivity function for one eye for each method [Time Frame: At end of data collection (up to 12 months after first subject is included)]
Secondary Outcome(s)
Sources of variability of the average area under the curve for the log contrast sensitivity function [AULCSF squared] [Time Frame: At end of data collection (up to 12 months after first subject is included)]
Sources of variability of the average time used to measure the contrast sensitivity function [seconds squared] [Time Frame: At end of data collection (up to 12 months after first subject is included)]
Secondary ID(s)
UCST-01.2014
Source(s) of Monetary Support
Please refer to primary and secondary sponsors
Secondary Sponsor(s)
Ethics review
Results
Results available:
Date Posted:
Date Completed:
URL:
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