Is there anything thinner than 1.74 high index lenses? Do these lenses cause any strain on eyes? - Quora
![Warby Parker on Twitter: "@StevenCanals Hi Steven! We can fill a wide range of prescriptions and even offer 1.74 ultra high-index lenses too—we want to help as many customers as we can! Warby Parker on Twitter: "@StevenCanals Hi Steven! We can fill a wide range of prescriptions and even offer 1.74 ultra high-index lenses too—we want to help as many customers as we can!](https://pbs.twimg.com/media/EKZg5-oU4AABOmD.jpg)
Warby Parker on Twitter: "@StevenCanals Hi Steven! We can fill a wide range of prescriptions and even offer 1.74 ultra high-index lenses too—we want to help as many customers as we can!
![Wholesale 1.67 High-Index Lenses: Thinner, Lighter Lenses For Any Eyeglass Prescription Manufacturer and Supplier | youli Wholesale 1.67 High-Index Lenses: Thinner, Lighter Lenses For Any Eyeglass Prescription Manufacturer and Supplier | youli](https://www.youlilens.com/uploads/product.png)