How to choose swimming goggles with degree?

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.

Custom-made prescription swim goggles are made by an optometrist. They come in a wide range of lens designs, including laser-cut and curved frames.

They offer a custom fit for your eyes that any other type of swimming goggles can’t match.

They are also ideal for those who need to see far away or have trouble focusing on the bottom of the pool because they give you more peripheral vision than regular safety glasses.


Custom-made prescription swim goggles are available in both single vision (1-piece) and dual vision (2-piece) versions, so you can choose which one is right for your needs.



Custom-made prescription swim goggles are a great option if you have a specific vision problem. You can get exactly what you need, and the fit will be better than anything else on the market.

Decathlon sells empty goggle frames that you can buy with separate corrective customisable lenses.

Here are the top choices for empty goggle frames you can opt for:

- Nabaiji Selfit 500 L
- Nabaiji Selfit 500 S

One of the disadvantages of using custom-made prescription swim goggles is that it takes time to get the prescription right. This can be quite frustrating if you are in a hurry and have no other option but to wait.

It is also expensive. Getting custom-made lenses can cost a lot, depending on what type of lens you want (metallic or semi-transparent) as well as its shape and size.

Swimming goggles with anti-reflection properties are the best choice for swimming at a beach.

With prescription swim goggles, you can choose how much of your vision is blocked by the lenses. This is called “degree”, and it corresponds to the angle between your eyes and the centre of your pupil (the circle with a dot inside).

The lower the degree, the more light gets through, and it's easier to see underwater.

However, if you want all of your vision blocked out while swimming in chlorinated water or saltwater pools where most people swim thrice daily during the summer months then you should consider getting goggles with higher degrees (like 2D).

1. Don't wear prescription swim goggles in the shower. The steam from your warm water will cause them to fog up, which is not only annoying but can be dangerous if done repeatedly.


2. Be careful about leaving your prescription swim goggles in the sun for extended periods of time. Heat and moisture can damage them over time, so be sure to store them away from direct sunlight when not wearing them.


3. Don't use prescription swim goggles when swimming in chlorinated pools or salt water (such as in the ocean). 

For this, you will need different lenses than what came with your goggles. If you have sensitive eyes or allergies, make sure that these are compatible first!