Choosing your Diopters for Prescription Swimming Goggles

Anyone who wears glasses knows how important it is to have clear vision while doing activities like swimming. However, reading your prescription and figuring out which diopter strength to choose for your prescription sports eyewear can be a bit confusing. But don't worry, it's not as complicated as it may seem!

Here's a brief rundown of what the terms mean:

Sphere Power

Also known as spherical power, it refers to the strength of a lens needed to correct nearsightedness (myopia) or farsightedness (hyperopia). It is measured in diopters (D) and can be a positive or negative value. A positive sphere power corrects for farsightedness, while a negative sphere power corrects for nearsightedness.

Cylinder Power

This is a measurement in an eyeglass prescription that refers to the amount of astigmatism correction needed to see clearly. Astigmatism is a common vision condition that causes distorted or blurred vision due to an irregularly shaped cornea or lens. The cylinder power indicates the degree of astigmatism correction required.

Axis

The axis is a number that tells you the direction of your astigmatism. Axis will only appear on your prescription if you have a cylinder power.

It's important to note that not all prescription swimming goggles are available in every diopter strength, so you may need to choose the closest available option.

We hope this guide helps you understand your prescription, and assist you in determining the right diopter strength for your prescription sports or swimming goggles. Don't forget, if you're still unsure or have any questions, don't hesitate to ask your eye doctor or optician for personalized advice.