Ultra Thin 1.74 High Index Prescription Lenses

Our Ultra Thin 1.74 high-index prescription lenses are our thinnest and lightest lens option, designed for strong prescriptions where standard lenses may appear thick or heavy.  

Using advanced high-index lens technology, 1.74 lenses bend light more efficiently, reducing lens thickness, edge bulk and overall weight while creating a slimmer, more refined appearance. 

These premium ultra-thin lenses are especially popular for high prescriptions, oversized frames and prescription sunglasses where comfort and cosmetics matter most. 

Compared to standard 1.5 lenses, 1.74 high index lenses can significantly reduce thickness and provide a flatter, lighter and more comfortable pair of glasses. 

Our Ultra Thin 1.74 lenses also provide 100% UV protection for healthier, safer vision. 

Recommended for those with strong prescriptions who want the slimmest, lightest and most cosmetically appealing lenses on the market. 

Who Are Ultra Thin 1.74  Lenses Best For?

These are ideal if:

• Your prescription is approximately ±6.00 and above
• You want the thinnest possible prescription lenses
• You dislike thick lens edges
• You wear oversized glasses or sunglasses
• You want lightweight all-day comfort
• You want the best cosmetic finish from your glasses
  

Ultra Thin 1.74 lenses are especially popular for oversized vintage frames and high-prescription glasses where minimising lens thickness dramatically improves appearance and comfort. 

All prescription lenses are checked and fitted by qualified dispensing opticians at our UK workshop.

Frequently Asked Questions

What are 1.74 high-index lenses?

1.74 high-index lenses are ultra-thin prescription lenses designed to reduce thickness and weight for strong prescriptions.

Are 1.74 lenses the thinnest lenses available?

Yes 1.74 high-index lenses are the thinnest commonly available plastic lenses.

Are 1.74 lenses thinner than 1.67 lenses?

Yes 1.74 lenses are thinner and flatter than 1.67 lenses, particularly for stronger prescriptions and in larger frames.

What prescriptions are 1.74 lenses best for?

We recommend 1.74 lenses for strong prescriptions of around ±6.00 and above. However it is always worth considering the frame size and design too.

Are 1.74 lenses worth it?

If you are looking for the thinnest and lightest possible lenses for strong prescriptions, improving cosmetic appearance and comfort, then yes.  

Are 1.74 lenses good for oversized frames?

Yes Ultra Thin 174 lenses are great in oversized vintage frames, where thicker lenses may otherwise become very noticeable.

Do 1.74 lenses need an anti-reflective coating?

Yes. High-index lenses naturally reflect more light as they are flatter, therefore an anti-reflective coating is necessary. All of our Ultra Thin 1.74 lenses come with our See Clear anti-reflective coating as standard.

Please see our size guide for more information.