<prompt> Trucking of vessels is seen in which of the following disordersCentral retinal artery occlusionCentral retinal vein occlusionHypertensive retinopathySickle cell retinopathy  <response>: Ans. a Central retinal artery occlusionRef: Kanski 7e, p. 562Narrowing of arteries and veins with sludging of and segmentation of blood column - Cattle trucking Boxcarring. 