Your lens diameter is a key factor in vision clarity and comfort, just like your prescription.

The size of your lenses isn’t just cosmetic—it affects everything from glare reduction to peripheral vision and overall wearability.

Lens requirements vary dramatically between individuals—there’s no universal standard.

Begin by identifying your eye shape—common types include round, almond, hooded, monolid, and upturned.

Your eye anatomy affects everything from optical alignment to how the lens frames your gaze.

Larger lenses on round eyes create visual equilibrium and reduce the bulging effect common with small lenses.

With almond eyes, you have flexibility—most lens diameters will work well without distortion.

Hooded eyes benefit from wider lenses that extend beyond the lid’s reach, ensuring clear sight and preventing lens displacement.

Avoid small lenses on monolid eyes, 乱視 カラコン ワンデー as they can shrink the perceived size of your eyes and make your gaze appear closed-off.

With upturned eyes, a slightly wider lens paired with a gentle curve enhances the eye’s natural lift.

If your pupils aren’t centered in the lens, especially with strong prescriptions, you risk headaches, dizziness, or distorted sight.

Don’t rely on online tools alone—professional measurement ensures your lenses enhance both vision and appearance.

Try on multiple lens sizes—even if one looks perfect in photos, real-life comfort is what matters.

The ultimate goal isn’t just sharp vision—it’s comfort, confidence, and a seamless blend with your natural features.

Take your time, ask detailed questions, and prioritize fit over fleeting trends