Progression of flicker perimetry in clinical application

Flicker perimetry measures the function of retina by stimulating it using flickering light.It has three test modes:contrast modulation flicker , critical flicker fusion frequency and luminance pedestal flicker.These 3 modes have their own characteristics.Flicker perimetry shows a higher sensitivity than white-white standard automated perimetry in early diagnosis of glaucoma.It also has advantages in the diagnosis for age-related macular degeneration , diabetic retinopathy and other retinal diseases.With further understanding of the flicker perimetry , its clinical application will gradually expand.In this paper , the basic principle and clinical application are reviewed. Key words: Perimetry ;  Flicker fusion ;  Photic stimulation ;  Contrast sensitivity ;  Visual perception ;  Glaucoma ;  Macular degeneration ;