Same problem, same solution.
If the (uncorrected) astigmatism is only mild, you may want to consider …
ETA: they CAN put correction for astigmatism into these lenses.
On the boat, sure. But underwater?
ETA: Never mind, @DavidNRockies has a good suggestion.
Same solution when skiing. I don’t dive yet, except for snorkeling where I don’t need to read any gauges.
I am quite nearsighted, but am old enough to use bifocals (my near prescription was different than my far prescription since I was in my mid 30s but I could adjust then – not so much anymore)
(I also have mild astigmatism)
Anyhow, I got prescription goggles with just my far prescription and no astigmatism and they were fine for snorkeling.
YMMV
Brian
I got almost my far prescription in one eye, and an “i can read my watch” prescription in the other eye. Works pretty well.
I think that’s a good rule in general, not just for underwater activities.
I learnt with one agency and done most of my dives with another. For both
Rule #1 is never hold your breath.
Not running out of air is obvious to a non diver and while it is important if that is the only thing you do wrong you can just grab your buddy’s alternate supply and ascend to the surface.
Never holding your breath is less obvious but more important. The pressure of the air you breathe increases at depth if you then hold your breath as you ascend your lungs will expland and if they overexpand some pretty nasty things can happen. It can also happen with surprisingly small changes of depth.
I would recommend doing a fair bit of research before deciding who to train with. You want to find an instructor that will teach you to be a good diver not just to get you qualified. I didn’t, I learnt with the place that was nearest to me that had an available course, he did the minimum necessary to get me qulified and did some things that were wrong to make things quicker for him. A good instructor will ensure you are comfortable doing the skills not just that you performed them once and will also talk about things which might not be strictly speaking part of the course but will make you a better diver.
That must mean for scuba, in snorkeling holding your breath is rather important. Rule #2 for snorkeling is don’t inhale if your snorkel is underwater, or still full of water from being under.
Correct, a snorkeller breathes in at the surface at normal pressure when they descend theire lungs compress, they will expand again as they return to the surface but not get any bigger than they were originally.
Another riule of scuba is not to share your air with a free diver becasue they normally hold their breath and may not breath out as they approach the surface to prevent lung over expansion
100%. Easy, fun, - if you like snorkelling, give it a go. I think mine cost an extra $50 on a snorkelling trip.
Never tried it but looking at the links you can not buy your own equipment you have to go with an outfitter and a guide. This make sense, while I have seen similar things on kickstarter the safety of such devices s very concerning if used by those not trained. What I said about lung overexpansion would also apply to snuba and there would be other dangers such as getting the air supply line entangled or coming up too quickly.
To use snuba (or similar) safely you would need basic safety instructions and be in the presence of a qualified instructor or have a more thorough training so you can deal with any incidents yourself (with your buddy).
This isn’t that much different from scuba, most agencies offer discovery dives where someone who isn’t qualified can after some basic instruction go for a dive with a qualified instructor to take care of them.
With snuba you’re never more than 30 feet deep. So, even if things go wrong, you can probably get the the surface safely. I’m certified for scuba, and did snuba only once. But as I recall, there was no scuba-like training or precautions with the snuba.
I still reckon it is very similar to Discover scuba. The maximum depth of discover scuba is 20-30 ft so they are the same there though I admit with Scuba it is the responsibility of the instructor to ienforce this where with snuba it is not physically possible and rules such as never hold your breath would apply to both.
The “training” for discover scuba is very light, the instructor does almost everything for you but there are a few essentials like breathing and basic signals that must be taught and I can’t imagine the same doesn’t apply to snuba.
Reviving this a bit - for folks who do underwater photography, do any of you use a GoPro? I was going to replace our dead Olympus Tough camera with another but I realize that a GoPro Hero 11 would be a new wrinkle to my photography, especially for skiing.
I can get one for $400 with a bunch of needed accessories right now so it’s less money than the Olympus Tough and more versitile. There are few times I’d use the Tough instead of my phone unless I was in the water but the GoPro has many other uses.