Endpoint
Contrast sensitivity
The ability to detect sharp boundaries (stimuli) and to detect slight changes in luminance at regions without distinct contours. Psychophysical measurements of this visual function are used to evaluate visual acuity and to detect eye disease.
CAT:outcome/contrast-sensitivityreported in log contrast sensitivity
How it is measured
Contrast sensitivity function measured at named spatial frequencies, commonly 1.5, 3, 6 and 12 cycles per degree, by sine-wave grating test or by a contrast chart such as Pelli-Robson or CSV-1000, expressed as log contrast sensitivity. The spatial frequency, the test used, and the luminance and glare condition are recorded with each finding and are not optional.
Measured, not recorded
- Subject
- contrast sensitivity
- Measurements
- 1 measurement
- Recorded as a finding
- No
Show what was measured
contrast sensitivity
increases, MD 0.26 (95% CI 0.22-0.30)
Fixed-effects meta-analysis of the two studies that reported contrast sensitivity showed that lutein supplementation was associated with higher contrast sensitivity at spatial frequencies of 3, 6, 12 and 18 cycles per degree (MD 0.26; 95%CI 0.22 to 0.30,.
PMID:31887124 · one of two readings recorded this