Step diopter (or pre-fixed) prescription swim goggles are simply lenses designed for a specific power level. They’re usually offered in different strengths, so you can choose the one that best suits your vision needs.
If you're looking for a pair of goggles that fit, can be used for other sports besides swimming and snorkeling, and are not too expensive, then pre-fixed prescription swim goggles are a great option.
These can be found at most sporting goods stores like Decathlon and come in various styles.
Some of the most popular options for pre-fixed prescription swim goggles are:
- Nabaiji B-Fit 500 -2
- Nabaiji B-Fit 500 -3
- Nabaiji B-Fit 500 -4
- Nabaiji B-Fit 500 -6
It's important to note that pre-fixed goggles are also much cheaper than custom-made goggles because they don't require any extra fittings or adjustments before they're ready to go!
The only con to using these types of goggles is that they won’t work if you need progressive lenses or bifocals.