Renee's Readers Blue Light Blocking Janice in Dark Vintage Tortoise or Classic Black Silver Here are the optical measurements:

Here are the optical measurements: Lens Width: 52mm

Scratch Resistant Hard Coating

The sculptured temples have triple barrel hinges which add strength and stability

This streamlined

Renee's Readers Blue Light Blocking Janice in Dark Vintage Tortoise or Classic Black Silver Here are the optical measurements:CLEAR OPTICS, BLUE LIGHT FILTERING Introducing the new Janice Blue Light blocking optical quality reader from the experts at Renee's Readers. The trim and tailored styling is a modern look with equal attention to comfort and quality. The sculptured temples have triple barrel hinges which add strength and stability. And the integrated nose pads which won't 'hang up' when wearing these up top! The optical quality CR 39 lenses block out blue light and UV