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Brown sunglasses worn by a person with a basketball.

Transitions GEN S Lenses: Speed, Color, and UV Protection

Person adjusting eyeglasses using a lens-cutting machine.

High Index Lenses: 1.61 vs. 1.67 vs. 1.74

PD=62mm measured on a person's face, distance between the centers of the pupils of their eyes.

Elevate Your Eyewear Experience with Zenni’s Revolutionary Digital PD Ruler

Zenni eyewear, white-framed sunglasses worn by a person with curly hair.

Oval Sunglasses: Timeless Style

Woman wearing large, square sunglasses and an orange swimsuit, lounging in a wicker chair by a pool.

What are Cataracts?

Person in sunglasses reading a book outdoors.

What are Progressive Readers and How to Order Them

Understanding Pinguecula and Pterygium