prescription mask

[cwaver]

Can anyone tell me what strength prescription to get for my Cressi Big Eyes if my glasses are +4.00 for reading

 

[scubasean]

Can anyone tell me what strength prescription to get for my Cressi Big Eyes if my glasses are +4.00 for reading

I'm not experienced in such matters, but have gotten prescription lenses for my mask. The opticians know what to do to make your prescription work correctly in a mask. Just give them the prescription and the mask...

It did just occur to me that you might be asking the question because you want to but stick on lenses and do it yourself...If so, I wish you luck.

 

[babar]

your prescription is a magnifier, you may not need any prescription lenses because the water also magnifies things. Have you tried diving with regular lenses? If not I think you should try that first, you may be surprised

babar

 

[baitedstorm]

I've been out of the biz for a little over a year so might be a little rusty... I'll give it a try... First thing, you have something called a vertex distance (basically just the distant between your eyeball and the mask) that has to be accounted for, then you have the refraction in water to deal with. Your current Rx, do you use it at arms length or very close to your face? (If your wanting to see arms length away to read your SPG I would go with +275 maybe +300 providing your original Rx is up-close reading, not lap reading).... Remember, the stronger the lens power, the closer you'll have to hold the object. My suggestion, go into the drug store and try on different cheater/readers, heck, I'd even bring your dive computer/spg and hold it at the distant you think you'll be underwater. The refraction under water will be a little different, but not to much, go just a tad bit weaker and you should do ok.

Like I said before, I'm a little rusty, but if I can help please feel free to pm me.


Vickie

 

[BlueDevil]

Have you considered HydroTac lenses? These are stick on lenses that can be readily fixed onto any dive mask (or sunglasses if you wish). It is a simple do-it-yourself operation, and while the lenses are quite securely attached, they can be removed if you wish and put onto a different mask. However I think the most powerful lenses they have may be +3 (but this may be all you need for reading gauges etc). They cost $40 in Australia, which would convert to about US$30 - this is way cheaper than a prescription mask, and if they don't work for you have lost very little money (and could probably sell them to a dive buddy anyway)

Have a look at this website (it is an Australian website, but no doubt a Google search will find a local supplier for your area)
http://www.hydrotaclenses.com.au/

 

[herman]

Your best bet is to go to the Pros for advise. I recently got a mask from Prescription Dive Mask and was very pleased with their service. Call Linda and ask her your questions, you will get the answers from "the horses mouth". She is a super nice lady.

http://www.prescriptiondivemasks.com/

 

[baitedstorm]

I probably should have added that my recommendations are for the press-on FT28 bifocals you can by over the counter at most drug stores. Believe it or not, they work, without leaving you broke. Hand ground lenses for scuba masks can get pretty costly, they do sell knock-offs that are pre made for about half the $$.

*Like I said before, I haven't seen the latest stuff that is out on the market from the last year, but after doing this for well over 12 yrs. My vote (commission unbiased) is for the press-on lenses..

Good Luck

 

[Bottle Diver]

My problem with the "stick on" lenses is that they can float away. Since they are applied with moisture, ie, surface tension, moisture can also cause them to slide around or even disappear from the mask. (I know, as I've lost 'em before) :11:

 

[BlueDevil]

My problem with the "stick on" lenses is that they can float away. Since they are applied with moisture, ie, surface tension, moisture can also cause them to slide around or even disappear from the mask. (I know, as I've lost 'em before) :11:

I put HydroTac lenses on my mask recently and went for as tropical dive holiday soon after. Did 12 dives, and spent many hours snorkelling as well. The lenses are still firmly attached just where i put them.