ACE inhibitors(like Perindopril
) do cause cough. If it is severe you need to inform your physician.
There could be various reasons of your blurring of vision. Where examined comprehensively from cornea
. It could be early cataract
. Your retina needs to be checked. You never know you haave hypertensive retinal changes( bleeding, swelling of retina). Please have your retina checked. Rarely Perindopril tablets caause swelling of retinal called as Central serous chorioretinopathy.