THE CLEAR VISION GUIDE
Lens material comparison assistant
Compare lens materials and prepare questions about thickness, weight and cost. An educational tool, not a prescription or thickness calculator.
How to use this comparison
This is an editorial discussion aid for adult minus-sphere, minus-cylinder prescriptions. It does not determine suitability, prescribe a material or calculate finished thickness. It uses prescription magnitude only to suggest which material questions to raise; frame size is a discussion prompt, not a measurement.
For children, plus-cylinder notation, farsightedness or special prescriptions, ask your dispenser directly. Do not convert your prescription here.
Sources & verification
Sources checked: