Contact lens or placebo?

I've worn contact lenses for more than 30 years, and for the first time this week, I had one that corrected nothing. Yeah, pure placebo. As I was watching TV in my daughter apartment, I was wondering if the show was HD or just digital.

There was a slight blur and I must say that the only lens I wear only offers a slight correction. So I struggled for a couple of days until I tried my eyeglasses on to discover that – yes! - my lens wasn't correcting anything. Just a clear, useless piece of plastic over my pupil...

By luck, I had taken with me an extra lens and, a few seconds later, I was seeing with full clarity! This shows to go that quality control issues happen everywhere and no one product is ever perfect!