Roughly 40 brands Designer Glasses retailer. ZEISS lenses cooperator.
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Photochromic lenses

PhotoFusion® X goes well beyond a simple refresh. We’ve rebuilt photochromic lenses from the ground up, with a new lens material, quicker-acting dyes, and a carrier matrix engineered for speed.

photochromic lenses City Specs 2026

A fresh take on photochromic lenses

ZEISS PhotoFusion X lenses come in a wide range of colours and multiple lens indexes, all built on ZEISS BlueGuard lens material as standard.

The reasoning behind ZEISS PhotoFusion® X lenses

Built to fit what your customers deal with every day.

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The human eye has to cope with light conditions that keep shifting. Step from indoors to outside, and brightness can jump to as much as 100 times higher, which is often what causes uncomfortable glare.

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Going back and forth between clear glasses and sunglasses isn’t always practical, and sunglasses aren’t always within reach when they’re needed. In fact, fewer than 22% of consumers actually wear their sunglasses at the times they’d benefit from them.

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Searches for “blue block glasses” keep climbing, and eight out of ten lens wearers now say protecting their eyes from blue light matters, particularly while indoors.

photochromic lenses City Specs 2026

One lens that does it all: what wearers are asking for

People’s lives keep them moving between different settings, which is fuelling demand for photochromic lenses. Add to that the growing number of progressive wearers over 45 alongside younger customers, and it’s clear people want a single lens that works all day, in any light.

photochromic lenses City Specs 2026

A new take on light-reactive lenses

Eye care professionals have long favoured ZEISS PhotoFusion for how quickly it reacts. Given rising demand, ZEISS decided to push light-reactive lenses further still, resulting in ZEISS PhotoFusion X.

photochromic lenses City Specs 2026

Peak performance: speed, depth, sharpness and protection, all at once

ZEISS PhotoFusion X isn’t a small tweak to an existing product. It’s a full rethink of what a photochromic lens can be, engineered to give your business real momentum.

Customer satisfaction with ZEISS PhotoFusion X lenses is backed by the numbers

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This share of consumers say PhotoFusion® X darkens faster than the earlier generation of PhotoFusion.

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Consumers largely agree, at this rate, that PhotoFusion® X lenses get dark enough in their tinted state to work as sun protection.

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This share of consumers agree that ZEISS PhotoFusion X lenses, once they’ve cleared, are light enough to serve as everyday self-tinting lenses.

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This proportion of consumers found PhotoFusion® X quicker to react to light than the newest version of a well-known competing photochromic brand.

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This share of consumers said they would wear PhotoFusion® X as their sun protection lenses.

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This many consumers feel it pairs with any outfit, and 94% say it suits everyday situations.

The X-factor: patented intelligence

A new approach to photochromic lenses.

photochromic lenses City Specs 2026

ZEISS BlueGuard Lens Material

On its own, ZEISS BlueGuard lens material already screens out 40% of potentially harmful blue light. Add the photochromic treatment, and that rises to 50% indoors and up to 94% outdoors when fully tinted, while also giving full protection against UV radiation at all times.

photochromic lenses City Specs 2026

A New Carrier Matrix

This speed-tuned carrier matrix gives the molecules more room to fold and unfold quickly at peak performance, without losing the strength and durability you’d expect from a premium lens material.

photochromic lenses City Specs 2026

New Photochromic Dye Molecules

Improved dye compounds, each under 0.3mm across, need only a small amount of light energy to react, making them faster than before.