Lens Index

What is Lens Index?

Lens Index is a number that describes how thick or thin your lenses are. The higher the lens’ index, the thinner the lenses. This is very important as higher prescriptions will have thicker lenses and will therefore need to have higher index for thinner and lighter lenses.


What are High Index Lenses?

High index lenses are high-performing with their ultra-thin and light design, making them the ultimate choice for comfortable wear.

Of course, standard lens index (thicker lenses) are more affordable however can only accommodate to lower prescription as it can be heavy and thick. While higher index (thinner lenses) are lightweight and versatile and suitable for higher prescriptions.

The thickness of the lens not only affects style and comfort but also frame fit. Thicker lenses can distort the appearance of vision and maybe problematic especially if the thickest portion of the lens is at the outer edge. Therefore, investing in a good pair of glasses is like having another set of eyes, therefore choosing the right index lenses depends on your vision correction and lifestyle.



  • 1.5 Index Lenses –Standard Lens
    • These are standard single-vision lenses that is included in all frame prices. However, we only recommend this index for prescription with sphere correction of approximately +2.50 to -2.50.
  • 1.56 Index Lenses- Thin and Light
    • These lenses are thinner and lighter than standard index lenses. It is recommended for sphere correction of approximately -3.75 to +3.75 and below, and cyl correction of -2.00 and below.
  • 1.6 index- Super Thin and Light
    • These lenses are higher index lenses which are super thin and light. It is recommended for high sphere correction around sphere -4.50 to +4.50, and cyl correction around -2.00 to -3.00 and below.
  • 1.67 Index- Ultra Thin and Light
    • These lenses are much thinner and lighter. It is recommended especially for strong corrections around -6.00 to +6.00 and cyl correction -3.50 and below
  • 1.74- Premium Thin and Light
    • Now we are talking! This is our thinnest and lightest lenses for comfort, versatility and style. It is recommended for sphere correction around -8.00 to +8.00, and cyl correction -4.00 and below.


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