Spatial contrast is a physical dimension referring to the light-dark transition of a border or an
edge in an image that delineates the existence of a pattern or an object. Contrast sensitivity …

• Contrast sensitivity functions (CSFs) were determined on a large group of patients with
macular degeneration to better assess qualitative aspects of their residual vision. Contrast …

Three different types of contrast sensitivity chart were used on normal patients by six
optometrists in clinical practice. The charts were the Vistech, the Pelli‐Robson and the …

Practitioners frequently make clinical decisions based on changes in visual acuity. However,
acuity is recognised to be only one aspect of visual performance. In recent years, a number …

• Clinical spatial contrast sensitivity measurements are typically made using psychophysical
methods that do not specify the response criterion being used by the patient in judging …

A large group of individuals with retinal disease were tested prospectively for contrast
sensitivity by means of Arden gratings. A subgroup of 19 were also tested with the Nicolet …

A description is given of a practical clinical test of contrast sensitivity and of the results
obtained on a normal population. An account is given of recent physiological work which …

The ability to distinguish contrast plays an important role in patients' everyday vision.
Contrast sensitivity testing can identify many ocular diseases. Testing the peak of contrast …

Contrast sensitivity testing is a powerful tool for determining the capability of the visual
system to process spatial and temporal information about the everyday objects we see. The …

A major assumption underlying the use of contrast sensitivity testing is that it predicts
whether a patient has difficulty seeing objects encountered in everyday life. However, there …