Purpose:
To assess the influence of age-related macular degeneration (AMD) on critical flicker-fusion frequency (CFF)
Methods:
CFF was measured centrally for a red, green and blue target and in 10° excentricity with a red target. 28 patients with non exsudative AMD, 12 patients with exsudative AMD and 45 age-matched healthy eyes were included.
Results:
CFF decreased in eyes with non exsudative AMD (red 1.3 Hz p=0.025, green 1.4 Hz p=0.053, blue 2.1 Hz p=0.006) and exsudative AMD (red 2.2 Hz p=0.02, green 3.3 Hz p=0.001, blue 2,9 Hz p=0.02) The difference between central and peripher CFF increased in non exsudative AMD (red-red 10°, 0,7 Hz p=0.024), but was not significantly increased in exsudative AMD (1.3 Hz, p=0.059). There was no difference between eyes with non exsudative AMD with good visual acuity (VA > 20/32, n=18) and healthy eyes, as well as between eyes with non exsudative (n=10) and exsudative AMD (n=9) with VA from 20/100 to 20/40.
Conclusions:
CFF decreased in non exsudative and exsudative AMD. CFF is not able to distinguish between AMD eyes and healthy eyes of equal visual acuity and therefore is not applicable as a possible diagnostic test.
«
Purpose:
To assess the influence of age-related macular degeneration (AMD) on critical flicker-fusion frequency (CFF)
Methods:
CFF was measured centrally for a red, green and blue target and in 10° excentricity with a red target. 28 patients with non exsudative AMD, 12 patients with exsudative AMD and 45 age-matched healthy eyes were included.
Results:
CFF decreased in eyes with non exsudative AMD (red 1.3 Hz p=0.025, green 1.4 Hz p=0.053, blue 2.1 Hz p=0.006) and exsudative AMD (red 2.2...
»