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i have the same issues with unable to see things at close up (e.g. dive watch). i'm looking for a transparent glue that able to permanently stick "plastic to glass" or "glass to glass" ensuring the glue is completely see through when cured/dried up. Was wondering if Loctite Glass Glue able to perform such task.
Check with a professional dive store as those chemicals can discolor over time and actually make things worse. An optometrist knows which glue to use.
 
hello, anyone tried Nano470 glue before?

 
Giving these a go. Will report back.
 
I have a Seavision mask with bifocal lenses. I used to have a problem with it flooding or fogging, but that stopped. I've been very happy with it other than when looking sometimes, I get sortof a 3-D effect when I am crossing the bifocal line (I think.)
 
I have a Seavision mask with bifocal lenses. I used to have a problem with it flooding or fogging, but that stopped. I've been very happy with it other than when looking sometimes, I get sortof a 3-D effect when I am crossing the bifocal line (I think.)

I had the same setup, bifocals in a SeaVision. In my situation, I found that as my eyes moved away from the prescription, the distinction was more pronounced.

Ultimately I had to look through the lower lenses to see at distance. When I got a newer progressive prescription and had it done by SeaVision, it seemed to take care of what I had experienced with the bifocal.

How old is the prescription in your mask compared to your current eyeglasses?
 
My go to for my dive buddies who need vision correction is to use a framed mask and just swap in the lenses. Cheap, effective, and easy to carry a spare in case of boot related hi-jinx on the boat. My partner’s sets of prescription masks cost less than my favorite frameless mask, so it can certainly be done on a budget.
 
The mask has a 2 year old prescription, but my eyes haven't changed much. The mask still works great. The only issue I have (and this has nothing to do with the mask, it's a function of my age) is I have a hard time seeing things a far distance away in a blue darkish background. Everything blurs together, so usually the best I get is a shape outline. But I can see tiny nudibranches great, so there's that.
 
That's about the same price as these from DGX: Masks - Vision Correcting. $40 for the mask and $20 for the lenses ($10 per eye). Plus no having to deal with the insane shipping times and poor customer support from Aliexpress. But to each their own, the goal is to make sure you can see and enjoy yourself while underwater!
 
Comparing the DGX masks to the Seavision ones, the DGX ones are cheaper. However, the Seavision ones offer much more choices of customization on mask choices, mask lens color, and frame and frame inset color. I think mine was around $100- maybe $120. It came very quickly, and I've been very happy with it. My prescription has changed 2 times since then, and I'm about to go in for my third annual visit, and its still working great. I can't say anything about the DGX ones. Does the Seavision mask help with my lack of ability to see creatures in the distance in deep blue sea? Nope, but I wouldn't see those with an ordinary mask either. But I can see for night dives now, and I can see the detail on the tiniest nudibranch!
 

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