Your prescription determines the fundamental design of your lens.
: Corrects for one focal distance, typically for nearsightedness (indicated by a minus sign) or farsightedness (a plus sign).
: Designed for those who need help with both near and far vision, offering multiple corrections in a single lens without visible lines.
The "index" of a lens refers to how efficiently it bends light; a higher index means a thinner, lighter lens. Prescription Polarized Sunglasses | Costa Del Mar US
Your prescription determines the fundamental design of your lens.
: Corrects for one focal distance, typically for nearsightedness (indicated by a minus sign) or farsightedness (a plus sign).
: Designed for those who need help with both near and far vision, offering multiple corrections in a single lens without visible lines.
The "index" of a lens refers to how efficiently it bends light; a higher index means a thinner, lighter lens. Prescription Polarized Sunglasses | Costa Del Mar US
