Quick Answer

Choose Emerald Hidrocor for a subtle, natural emerald tint with a standard 14.2mm diameter; pick Green Nonno if you want a slightly larger 14.5mm lens with a more noticeable green effect.

Size Matters: 14.2mm vs 14.5mm

The diameter of a contact lens affects how much of your iris it covers and how visible the color appears. Emerald Hidrocor has a 14.2mm diameter, which is close to the natural iris size for many people, giving a subtle enhancement. Green Nonno steps up to 14.5mm, covering more of the eye and creating a bolder, more noticeable look.

If you prefer a lens that blends seamlessly with your natural eye color, the smaller diameter is often more flattering. If you want a dramatic transformation that's visible from a distance, the larger diameter delivers that effect.

Color Tone and Natural Effect

Both lenses offer a green hue, but the series names hint at their design philosophy. Hidrocor is known for a natural, translucent finish that mimics the complexity of real irises. The Emerald shade is a rich but believable green that works well for everyday wear. Nonno, on the other hand, tends to have a more solid, opaque color payoff, making the green appear more vivid and artificial-looking.

Your choice depends on whether you want to enhance your natural eye color or make a statement. Both are yearly replacement lenses, so you'll live with this look for months—choose the one that matches your daily style.

Trade-Offs at a Glance

  • Natural look vs. bold look: Emerald Hidrocor offers a subtle, natural emerald tint; Green Nonno provides a more opaque, vivid green that stands out. Think about whether you want to enhance or transform your eye color.
  • Comfort specs are identical: Both lenses share the same 8.6mm base curve and 40% water content, so comfort should be similar for most wearers. If you've worn one base curve comfortably, the other should feel familiar.
  • Diameter affects fit and look: The 14.5mm Green Nonno may feel slightly different on the eye than the 14.2mm Emerald Hidrocor, especially for those with smaller eyes. If you have small eyes, a smaller diameter might be more comfortable.

Product Facts

  • Emerald Hidrocor Colored Contact Lenses (Yearly): Emerald Hidrocor has a diameter of 14.2mm and a base curve of 8.6mm, with 40% water content. The standard diameter and moderate water content make it a comfortable, natural-looking option for most eye shapes.

    Emerald Hidrocor Colored Contact Lenses (Yearly)

    Emerald Hidrocor Colored Contact Lenses (Yearly)

  • Green Nonno Colored Contact Lenses (Yearly): Green Nonno features a larger 14.5mm diameter with the same 8.6mm base curve and 40% water content. The larger diameter gives a more dramatic eye-enlarging effect while maintaining similar comfort specs.

    Green Nonno Colored Contact Lenses (Yearly)

    Green Nonno Colored Contact Lenses (Yearly)

Which One Fits You?

Best for

  • People who want a natural-looking green that enhances their iris without looking artificial.
  • Those who prefer a standard lens diameter that blends well with their natural eye shape.

Not for

  • Anyone seeking a dramatic, high-impact color change—consider Green Nonno instead.