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Axis
The Axis is the value that indicates the orientation of the cylindrical correction in an ophthalmic lens. It defines the direction in which the cylindrical power acts to improve visual acuity and stability.
What is Axis?
The Axis represents the orientation, expressed in degrees from 0° to 180°, in which the cylindrical correction is applied. It has no optical power in itself, but determines the direction in which the cylinder acts.
- Value in degrees — It ranges from 0° to 180°.
- Guidance — Indicates the direction of the correction.
- Attached to the cylinder — The Axis cannot exist without a cylindrical value.
Why it is important
- Sharpness — A correct Axis improves the perceived image quality.
- Visual comfort — Reduces distortion and instability during movement.
- Accuracy — Even small variations can affect the visual result.
- Optical design — It requires precise centring and a stable mounting.
Factors influencing the Axis
At Isolani Optical Centres, the handling of Axis is carried out with careful attention to the frame, the centring and the geometry of the lens, to ensure stable and natural vision.
- Cylinder — The Axis defines the direction in which the cylinder acts.
- Lens geometry — It affects the distribution of power.
- Frame — Stability and shape affect the accuracy of the Axis.
- Centring — Essential for maintaining the correct heading.
Isolani Experience
Every lens with a cylindrical 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
The fitting of Axis requires precision and long-term stability. At Isolani Optical Centres, we offer ongoing support with adjustments, non-medical checks and updates to your optical solutions whenever necessary, to ensure your vision remains clear and comfortable.
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The information on this page is for information purposes only and relates to the optical and commercial sectors. It does not contain any medical, clinical or diagnostic content.