PUPYL® Opening Technology
Designed Around Your Pupil. Built for Visual Comfort.

Light is constantly changing—and so is your pupil.
In bright conditions, the pupil contracts to limit light intake. In dim light, it expands (mydriasis) to let in more light. These natural adjustments play a critical role in how we perceive clarity, contrast, and depth—especially during near tasks like reading, where pupil size directly affects focus and comfort.
At ProCrea, we recognize that traditional lens designs often overlook this key physiological response. That’s why we developed PUPYL® Opening Technology—an innovation that dynamically supports the eye’s natural pupil behavior to ensure a consistently comfortable, clear, and adaptive visual experience.
And no, “PUPYL” isn’t a typo—it’s our unique signature for this patented solution, underlining our personalized, human-centric approach to optical design.
How it works:
PUPYL® uses a special molecule-inspired surface geometry that filters and modulates light transmission through the lens based on an optimal pupillary aperture, calculated from the wearer’s prescription and visual task. This enhances the visual system’s ability to adapt to changing light while maintaining the best pupil size for comfort and clarity.
Especially in progressive lens design, where multiple focal zones require precise balance, managing pupil dynamicsbecomes essential to ensure visual fluidity and reduce strain in near and intermediate vision.