The plant you are looking for is more commonly known as Dusty Miller, Senecio bicolor subsp. cineraria

Now that you have its modernized name I bet it will be easier for you to find. :)

Good luck with the cataract treatment. Senecios can cause liver damage if the dose is too high... so you may want to consult an herbalist or homeopath to be sure you get the dosing right!