Critical Flicker Frequency as a Potential Vision Technique in the Presence of Cataracts

Abstract

CFF was unaffected by cataract, yet sensitive to MD, and provided useful information about the postoperative visual outcome beyond that obtained through history and ocular examination in patients with dense cataracts.

Psychophysics, reliability, and norm values for temporal contrast sensitivity implemented on the two alternative forced choice C-Quant device

“…This is in agreement with other studies testing the potential effects of optical disturbances on the outcome of flicker tests: comparing normal individuals and individuals with media opacities, such as cataract, 10,11 comparing before and after cataract extraction, 9,35 and comparing differences in refraction correction. 35 Several (flicker) perimetry studies show systematical variation between measurements and it is suggested that these are learning and fatigue effects. [36][37][38][39] However, for single frequency temporal contrast measurements, it is mentioned that fatigue effects are small, due to the relative simplicity and short duration (a few minutes) of the measurement.…”

Critical flicker frequency and related symptoms in mild traumatic brain injury

“…It has been found to vary with various aspects of the stimulus quality and population tested [2][3][4][5][6]. CFF is important not only in assessing the integrity of the retina, but also in ascertaining temporal processing beyond the retina [7][8][9][10][11][12]. It reflects the capabilities of temporal processing with respect to the speed and transmission aspects of the neural response.…”

Perceptual Learning of Motion Leads to Faster Flicker Perception

“…Based on these findings, CFFT is used in medical and drug studies as a diagnostic tool. For instance, CFFT has been suggested as a diagnostic measure for Schizophrenia [10], Alzheimer's Disease [11], Multiple Sclerosis [12], and also some ocular diseases [13], [14]. In addition, CFFT is used as a measure of cognitive side-effects in psychopharmacological studies [15]–[17] and as a measure of workplace fatigue [18].…”