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Acta Ophthalmol (Copenh). 1979 Jun;57(3):503-6.

Flicker comparison of fundus photographs. A technical note.

Abstract

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.

[Indexed for MEDLINE]

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