Re: Interesting tech
I had my cataracts done abt 20 years ago, there wasn't any particular injunction about face washing (and you have the eye being done bandaged up for a day anyway, when you go back to the hospital and the opthalmologist removes the dressing and you can see properly!)
This was the Fred Hollowes style of intraocular lens replacement where they put a cannula in the side of the eye, (you are more or less awake for this!) ultrasonic emulsification of the cloudy lens, suction all the bits out of the lens sac than popin a rolled up replacement plastic lens which unwinds into position, bobs your uncle, you can see again!!!
If you have cataracts, definitely recommended!