Flicker comparison of fundus photographs. A technical note

Acta Ophthalmol (Copenh). 1979 Jun;57(3):503-6. doi: 10.1111/j.1755-3768.1979.tb01834.x.


A method for comparison of two fundus transparencies by means of alternating flickering light is described. Spurious differences between the pictures are reduced by making the exposures in a fixed position of the pulse cycle. Small haemorrhages are readily detected. Pulse variations of the vessels and changes in size of cup and disc can be measured.

Publication types

  • Comparative Study

MeSH terms

  • Flicker Fusion
  • Fluorescein Angiography / methods*
  • Humans