Question 1

What are high index lenses?

Accepted Answer

High index lenses are thinner, lighter prescription lenses made from denser materials such as plastic/polycarbonate. They refract light more efficiently than standard lenses, thereby reducing lens thickness for a stronger prescription. Ideal for daily wear for people with high myopia (e.g. -6.00 and above).

Question 2

What diopter requires high-index lenses?

Accepted Answer

If you are nearsighted at -6.00 diopters or higher, high-index lenses are recommended. If your distance vision is +6.00 diopters or higher, high-index lenses are recommended.

Question 3

Do I need high-index lenses?

Accepted Answer

If you have a high degree of eye and want lighter glasses to reduce the pressure on the bridge of the nose and improve wearing comfort, you can choose to wear high-index lenses. The general range of index lenses: 0-200, choose 1.50 index lenses; 0-400, 1.57 index lenses; 200-600, 1.61 index lenses; 400-800, 1.67 index lenses; 600 and above, 1.74 high-index lenses. It should be noted that the recommended lens index is related to the degree and the amount of astigmatism. It is best to listen to the advice of the optometrist; the optometrist will also recommend the refractive index based on the profession (because a high index has dispersion (chromatic aberration)), so the professions of nail art, art, and vision will recommend a low index.

Question 4

What are 1.74 high index lenses?

Accepted Answer

1.74 is the thinnest high index plastic lens available. Lens Thickness: 30-40% thinner than a standard 1.50 lens. Lens Weight: Up to 50% lighter. Best for: Extreme power prescriptions (e.g. -8.00 to -20.00). Disadvantages: Most expensive, requires premium coatings. Top Tip: Pair 1.74 lenses with small, rounded frames to minimize edge thickness!

Glasses with High-Index Lenses

Find stylish frames with thin, lightweight, high-index lenses that look great with stronger prescriptions.

Glasses with High-Index Lenses

Find stylish frames with thin, lightweight, high-index lenses that look great with stronger prescriptions.