If my regular glasses dose is -3.5 on the left and -3 on the right. What diopter should i get for the goggles?
21263
i would get the -3 that way you don't cause disorientation, because water as is does have refraction, so i would go with the lowest diopter.
21264
Honestly there isn't a big deal between -3.50 and -3.00 and you can get either one and you will see grate. But if you are still not satisfied go for 2 pairs of one -3.00 and -3.50 and just switch lenses and this way you have to pairs with perfect match
721993
This is my secon d pair of glasses and they fit over my nose piece and are so very very helpful driving when it is dark and also during the day if it is gloomy. I have 2 sizes and they both are wonderful. I have tri focals and they are fine no problem with them at all.
397404
David, these glasses are 1.25x magnification. OPTX 20/20 does offer other magnifications if this isn't what you're looking for.
273925
Amazon sells spectacles that function like binoculars. You might be able find a pair that will focus to 3' away but be careful. I ordered a pair of really cheap one and the field of view was too small to be useful. I threw them away. They make much, much better ones that cost much, much more. The issue is can you find a pair that will satisfy your needs at price you can afford.
918539
I wear glasses and have no problem with eye relief. I like the twist activated eyecup adjustment: when not actively using the binocs I keep them elevated to protect the ocular lenses. I don't believe in lens caps.
107886
I would go down with a prescription because you would not want to feel dizzy because it is too powerful for your eyes. These did not work well for my daughter for competitive swim though. They leaked, just an FYI
2182543
If you pull out the viewfinder you'll find a small dial. That's the diopter adjustment. It's great when you go from glasses to no glasses. Before you set it make sure you've actually had the camera properly focused on something first.
1213445
Lily - I bought them and never used them. They are junk. You'd be way better off investing in a precision set of adjustable glasses like Superfocus.
282300
I wear trifocals and the single lens correction worked just fine. I wasn't close enough to need the extra correction even when I was about 3 feet away.
107887
My daughter's prescription is -7.0 in one eye and -7.25 in the other. I purchased the -7.0 for her and they work great. For you I bet that the 9 would be better as you are already very nearly there at -8.75.
1177290
It depends on what your eyeglass prescription is. I spoke to my optometrist to see Whart general range is.
593113
Apologies for this late response. I wear glasses and have no trouble using these binocs. I would recommend them.
1743
The 1.25, 1.50, 2.0, etc refers to the strength of the glasses----the "prescription strength". The higher the number, the stronger the prescription. Someone who only needs reading glasses might only require a 1.50. Someone who can't see well without glasses would require a higher number. I would suggest you go some where like a Dollar General store and try on several different strengths of their over the counter glasses so you will know what works best for you. As for the "size" of the glasses....they kind of telescope in and out in such a way that you can adjust their size by about 4" total. Doesn't sound like much, but that's enough to accommodate most people's head size. Hope this helps! The 1.25, 1.50, 2.0, etc refers to the strength of the glasses----the "prescription strength". The higher the number, the stronger the prescription. Someone who only needs reading glasses might only require a 1.50. Someone who can't see well without glasses would require a higher number. I would suggest you go some where like a Dollar General store and try on several different strengths of their over the counter glasses so you will know what works best for you. As for the "size" of the glasses....they kind of telescope in and out in such a way that you can adjust... » Read More The 1.25, 1.50, 2.0, etc refers to the strength of the glasses----the "prescription strength". The higher the number, the stronger the prescription. Someone who only needs reading glasses might only require a 1.50. Someone who can't see well without glasses would require a higher number. I would suggest you go some where like a Dollar General store and try on several different strengths of their over the counter glasses so you will know what works best for you. As for the "size" of the glasses....they kind of telescope in and out in such a way that you can adjust their size by about 4" total. Doesn't sound like much, but that's enough to accommodate most people's head size. Hope this helps! « Show Less
1177291
Depends on what your prescription is. The camera has a built in -3.0 to +1.0 diopter adjustment. You want to buy the one that will allow you to match your prescription.E.g. If you wear +2 prescription, get the +2 and dial it down by 1. You would only need the - if you have to go further than the -3 that is built in. However, I have found that I do not use the diopter. When I have my glasses off, the images on the LCD are blurry. So I shoot with my glasses or contacts, so I can still view the images on the LCD.Hope this helps you decide.Chris
107885
Go higher! under water there is less visibility, so anything that gives you the edge, I would go for... Anyway there is some eye adjustment at any point and at that level half a Dioptric is almost negligible (my unprofessional opinion)
1781401
I don't know, but I've moved on to Splaqua corrective swim goggled--better deal, lot of different diopter corrections, they come with the lens in and they are cheaper.
498047
Contact Splaqua. I have a smaller deviation in my correction , and in this situation it is suggested to go with the lower number. I know that Splaqua, and probably others, will help with getting the proper correction for each eye in circumstances that call for it.