Middle Index 1.56 XLight

About The Product

ST Middle Index 1.56 XLight series represents the thinnest plus power lenses. Go the Extra Mile with ST 1.56 XLight series, Give your frame what it really needs!
Lenses with a 1.56 index are considered the most cost effective lens on the market. They possess 100% UV protection and are 22% thinner than CR39 lenses.

These lenses with knife edge finishing would suit those irregular frame sizes (small or large) and would make any pair of glasses look thinner than ordinary.

Enhanced Vision Quality: Available in Aspheric as well. Our Middle Index 1.56 XL comes in HC & HMC (AR).

Specification & Technical information

  • Refractive Index: 1.56
  • Material: NK55
  • Design: Spherical / Aspherical
  • Abbe Value: 38
  • Gravity: 1.20
  • Diameter: +55mm/+60mm/+70mm
  • UV: 400
  • Available Certification: CE, FDA, ISO 9001


  • UV400
  • Ultra-thin plus powers
  • Available both Spheric / Aspheric designs
  • High quality plastic lens
  • Premium lens treatment with anti-reflective, anti-glare, anti-scratch & water resistant



  • Up to 45% Thinner
  • 45% lighter
  • Knife edge finishing
  • Thinner than the ordinary


Coating Available:

  • Hard Coated
  • Hard Multi Coated

Our Certifications:

This lens has been manufactured in accordance with FDA impact-Resistant regulation NO.E 199945. Note: “Impact-resistance” Lenses are neither shatterproof nor unbreakable – ISO9001 MDD-Authorized Representative in Europe: MEDES Limited-Shenley Radlett, Herts WD777AR London-England TelFax: +44-1923-859810