Professional lens guidance
A higher refractive index can allow a thinner lens for some prescriptions, but thickness also depends on frame size, shape, centration, prescription and lens design. TOKAI 1.76 is a premium option; it is not automatically the right choice for every wearer.
| Decision point | TOKAI 1.76 | Standard high-index options |
|---|---|---|
| Main reason to consider | Potential thickness reduction for selected stronger prescriptions | Balanced thickness, optics, availability and budget |
| Prescription fit | Most relevant after analysing power, frame and final edge/centre thickness | Often suitable across a wide range of prescriptions |
| Other trade-offs | Material, coating, reflections, optical characteristics and price need discussion | Index-specific optical and coating characteristics still apply |
| Before ordering | Request a lens-thickness estimate with the chosen frame | Compare index options using the same prescription and frame data |
Frame selection can materially affect final thickness. Bring your current prescription and choose the frame before comparing realistic lens options.
Final suitability and local availability must be confirmed after reviewing your prescription, frame measurements and daily visual requirements.
Reviewed for patient education by Samana Budhathoki, Optometrist. Product availability and specifications can change; confirm the exact ordered lens and coating.
