Prism

What is Prism?

A Prism is an optical surface that changes the direction of light rays without altering their focus. In ophthalmic lenses, it is incorporated to compensate for minor perceptual misalignments, thereby improving visual stability and comfort.

• Deflection of light — Move the image towards the base of the Prism.
• Base and apex — The direction of the base indicates the direction of the detour.
• Prismtical value — Measured in Prism dioptres (Δ).

Why it is important

• Visual stability — Reduces fatigue and perceptual instability.
• Comfort — Enhances the natural appearance of vision in dynamic situations.
• Visual quality — It helps to foster a more balanced perspective.
• Optical design — It requires precision when it comes to centring and choosing the frame.

Factors influencing the use of Prism

At Isolani Optical Centres, Prism is managed with careful attention to technical parameters and the individual’s visual needs, to ensure stable and comfortable vision.

• Centring — Essential for maintaining the correct direction of the diversion.
• Lens geometry — It affects the distribution of Prism political power.
• Frame — The design must ensure stability and precision.
• Free-form design — It allows for a more precise integration of Prism.

Isolani Experience

Every lens with a Prismtical component is designed with the frame, technical specifications and lifestyle in mind, to ensure a balance between visual quality, comfort and stability.

• Bespoke glasses — Complete customisation of the frame and choice of lenses.
• Behavioural Centring — Real-world operating parameters for precise design.
• Simulation Room — Aesthetic and functional checks prior to production.

Ongoing support

Wearing Prism requires precision and consistency over time. At Isolani Optical Centres, we offer ongoing support through adjustments, non-medical checks and updates to your optical solutions whenever necessary, to ensure your vision remains comfortable and balanced.

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