Are headaches and slightly blurry vision common post angiogram? no bleeding at the access site and other than normal discomfort there a d the headach and blurred vision no other symptoms?

Transient blindness : Transient cortical blindness is an uncommon complication which follows coronary angiography. It was first reported in 1970, with an incidence of 0.05% to 0.08%. The mechanism and physiopathology remain unknown and largely speculative. It has been attributed to a toxic reaction of the contrast agent as it penetrates into the brain parenchyma, and some patients seem to be more susceptible.