If you have astigmatism, the best glasses are a full-rim frame in a moderate size with a gentle (not wrapped) curve, paired with lenses made exactly to the CYL and AXIS on your prescription. The frame matters less for the correction itself and more for keeping the lenses sitting straight and centred in front of your eyes.
What astigmatism means for your prescription
On a prescription, astigmatism shows up as two extra numbers: CYL (cylinder) and AXIS. CYL is the strength of the correction for the uneven curve, and AXIS is the angle, from 1 to 180, at which that correction sits in the lens.
Because the correction is angled, the lens has to be positioned accurately. A frame that slips, tilts or sits crooked can make the world look slightly off, even with a perfect prescription. Our guide to reading a prescription walks through each column if you want the full picture.
Frame shapes that work well
- Rectangle and square frames: a flat top line and stable bridge help the lenses stay level. Browse the rectangle collection.
- Soft oval and rounded-square shapes: they spread the lens evenly and avoid sharp corners where the edge can look thicker.
- Medium lens height: very tall or very wide lenses make edge thickness more noticeable with a cylinder correction.
- Acetate with a firm bridge: a solid acetate frame holds its position well through the day.
What to be careful with
Frames with a strong wrap or a very curved front can make a stronger prescription feel different at the edges, because the lens is tilted away from the straight-ahead view. If you are drawn to sunglasses-style wraps, pick a modest curve and check the frame measurements first.
Tiny lenses are also worth a second look. The less lens area, the easier it is to look past the corrected zone when you glance sideways.
Frame choices at a glance
| Frame feature | Good for astigmatism | Worth thinking twice |
|---|---|---|
| Rim | Full-rim, secure grip on the lens | Very thin rimless builds |
| Curve | Flat to gently curved front | Heavy wrap |
| Lens size | Medium width and height | Very large or very small |
| Bridge | Stable fit that keeps frames level | Frames that slide down the nose |
Choosing lenses for a cylinder correction
Higher-index lenses can keep the edges slimmer when your overall prescription is stronger, which is useful because a cylinder correction can add edge thickness in one direction. Our lens index guide compares 1.56, 1.61 and 1.67 in plain terms.
An anti-reflective coating is also popular with many wearers, as it reduces reflections from screens and headlights. You choose these options in the lens selector when you add your prescription.
Getting the fit right
- Check that the frame sits level on your face, with both temples touching your head at the same height.
- Make sure your pupils line up with the centre of each lens. Use our PD measuring guide to get your number.
- Pick a size you already know works, using the frame size guide.
- Give new lenses a few days; a small adjustment period is common when the cylinder or axis changes.
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Frequently asked questions
Can I wear any frame style with astigmatism?
Most styles work. The shapes above simply make it easier to keep the lens centred and the edges tidy. Check the frame width and lens height before you order.
Do I need a special frame for a high CYL value?
Not a special type, but a sturdy full-rim frame and a medium lens size are sensible choices, along with a higher-index lens if your prescription is on the stronger side.
Why do my new glasses feel different at first?
Many people notice a short adjustment period, especially when the axis or cylinder changes from their previous pair. If things still feel off after a few days, contact your eye care professional.
Can I order with my prescription online?
Yes. Add your prescription in the lens selector on any frame, including SPH, CYL and AXIS. Our FAQ page covers common questions.
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Explore all prescription glasses or the full eyeglasses collection. Add your prescription in a few clicks with our lens selector.
