Got a checkup at the eye doctor today. All went well, but like most of us getting older, my near-vision is getting worse. He mentioned a new eyedrop (Vuity) which provides a temporary (6 hour) relief of farsightedness. Of course I thought about its application in diving. I could get a dose before a dive, see my SPG clearly (for once) without having to squint! Well, I tried a drop in each eye. After about 30 minutes I could read small print again without assistance! But it only lasted about 90 minutes. But I'm way past the 40-55 most effective age range. Maybe someone younger than me might find this useful.