Gunn sign is?
A. Silver wiring of arterioles
B. Deflection of veins at arteriovenous crossing
C. Copper wiring of arterioles
D. Tapering of veins on the either side of the crossings
Correct answer : D. Tapering of veins on the either side of the crossings
Hypertensive retinopathyFundus picture in hypertensive retinopathy
Gunn sign is seen in grade III hypertensive retinopathy.
The other findings in grade III hypertensive retinopathy include
copper wiring of arterioles
banking of veins distal to arteriovenous crossings
right-angle deflection of veins
flame shaped haemorrhages
cotton wool spots
hard exudates.
Ref: Comprehensive Ophthalmology, A. K. Khurana, 4th edition, p258.
Image credits: Frank Wood. Licensed under the Creative Commons Attribution 3.0 Unported license. https://en.wikipedia.org/wiki/File:Hypertensiveretinopathy.jpg
