Swim Goggles with Degree Lenses

Goggles with degree have corrective lenses. Here is where to buy a pair that fits your eyes.

Updated Nov 1, 2026. Edited by: Ilyass Ben Hakim.

Where to buy

Swim shops stock ready made optical goggles. Speedo, TYR, Arena, Swans and Sporti make them. Optical labs make custom pairs for complex prescriptions.

Professional insight

Swim coaches convert the eyeglass prescription to one diopter number. Then they choose each eye separately.

Add half the cylinder to the sphere value.
Pick separate lenses when eyes differ by 1.0 or more.
Most stock lenses are minus, for nearsighted swimmers.
Strong astigmatism usually needs a custom lab pair.

Check the label

Diopter value printed on each lens, such as -3.0.
Minus for nearsighted or plus for farsighted.
Lens sold singly or as a matched pair.
Adult or junior frame size.
Anti fog coating stated.
UV protection if you swim outdoors.
Clear, smoke or mirrored tint.

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Specs to match

Ready made optical goggle ranges
Spec	Typical stock range	Notes
Minus lenses	-1.5 to -10.0	0.5 steps, wider at high power
Plus lenses	+1.5 to +8.0	Fewer brands offer these
Astigmatism	Not corrected	Custom lenses needed
Junior frames	Similar diopters	Smaller fit for kids

Goggle diopter from your glasses

Calculator

Uses the half cylinder plus sphere rule. Use minus numbers for nearsight.

Sphere (SPH)

Cylinder (CYL)

Approximate goggle diopter-3.5

Buying steps

1Find your current glasses prescription.
2Work out a diopter for each eye.
3Round to the nearest stock lens step.
4Choose a frame that seals around your eyes.
5Test in shallow water before training.

Care

Rinse in cool fresh water after each swim.
Do not rub the inside anti fog layer.
Dry in the shade, away from heat.
Store in a hard case to protect lenses.

Common questions

What does degree mean on goggles?: It is the lens power in diopters, like glasses strength.
Can I mix two lens strengths?: Yes. Many brands sell single lenses to build a pair.
Do they work for astigmatism?: Stock lenses do not correct it. Custom lab lenses can.