contrast sensitivity


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contrast sensitivity

[′kän‚trast sen·sə′tiv·əd·ē]

contrast sensitivity

The ability to detect the presence of differences in luminance; the reciprocal of the contrast threshold.
References in periodicals archive ?
Significant improvement in vision was demonstrated at six months after AAV-RPE65 treatment, as measured by assessments of vision-guided mobility, retinal sensitivity, visual acuity and contrast sensitivity. Larger improvements from baseline in functional vision were observed between treated and control eyes at lower light levels.
2012), included tests of visual acuity, visual contrast sensitivity, handgrip strength, vibrotactile threshold, standing steadiness, and single leg stance.
Not only can a carefully selected option address the glare, it can also lead to functional improvements in my patients' visual performance in terms of acuity, contrast sensitivity, and improved mobility.
But the outcome was surprisingly suboptimal in the form of post-op refractive surprises, spectacle dependency, reduced reading speed, reduced level of contrast sensitivity and most alarmingly the photic phenomena (Halos, Glare, Starburst etc.).
Continued improvement was also observed in contrast sensitivity as determined by Pelli-Robson low-contrast testing.
Problems can include trouble with contrast sensitivity, which is the ability to distinguish between objects of similar tone (e.g., milk in a white cup), and difficulty with depth perception (e.g., uncertainty of step height).
18, 2018 (HealthDay News) -- The risk of incident contrast sensitivity (CS) impairment is increased with factors such as cadmium exposure and older age, according to a study published online Sept.
Both groups had significant improvements in contrast sensitivity at six cycles per degree (the primary outcome measure), in other measures of contrast sensitivity and visual function, and in the amount of macular pigment.
And contrast sensitivity is "the ability to distinguish an object as the lighting is altered in intensity," said Fromer, who wasn't involved in the new study.
The visual acuity of all participants was assessed before the visual contrast sensitivity (CS; 1/threshold) was measured.