Lens Materials

1. CR-39 (Standard Plastic)

• Traditional plastic lens material

• Good optical clarity and affordable

• Best for low prescriptions

• Not impact-resistant (not recommended for children or safety glasses)

👉 Great entry-level option for everyday wear if you have a mild prescription.

2. Polycarbonate

• Lightweight and impact-resistant

• Built-in 100% UV protection

• Thinner than CR-39, good cosmetic appearance

• Excellent for children, sports glasses, and safety eyewear

👉 Safe, strong, and practical — the go-to choice for active lifestyles.

3. Trivex

• Similar strength and impact resistance as polycarbonate, but with better optical clarity

• Lightweight and comfortable

• Blocks 100% UV rays

• Resistant to stress cracks (ideal for rimless or drill-mount frames)

👉 The perfect balance of safety, clarity, and lightweight comfort.

4. High-Index Materials (1.60, 1.67, 1.74)

• Designed for stronger prescriptions to keep lenses thin and lightweight

• Reduce the “thick edge” look of high minus lenses and the “magnified eyes” effect of high plus lenses

• Provide excellent comfort and cosmetic appearance

• The higher the index, the thinner and lighter the lens:

  • 1.60 High-Index: 20% thinner than standard plastic

  • 1.67 High-Index: 35% thinner

  • 1.74 High-Index: The thinnest and lightest plastic lens available

Single Vision Lenses

HOYA MySV (Aspheric Single Vision)

• Designed for sharp, distortion-free vision across the entire lens

• Aspheric design keeps lenses flatter and thinner, reducing magnification or minification effects

• Ideal for higher prescriptions where appearance and comfort matter

• Available in multiple high-index materials for a lightweight, slim look

Benefits of MySV Lenses:
✔ Crisp, wide visual field
✔ Thinner, lighter, and more attractive lens profile
✔ Reduced image distortion
✔ Perfect for patients with moderate to high prescriptions

HOYA EX4

• Builds on all the strengths of EX3, with next-generation durability

• 4x more scratch resistance compared to standard coatings

• Improved resistance to dust, oil, and fingerprints

• Superior clarity with reduced reflections in all lighting conditions

• Long-lasting performance – keeps lenses clearer and cleaner for longer

👉 EX4 is the upgraded version — ideal for patients who want the toughest, most advanced coating for daily use.

Lens Enhancements

HOYA EX3

• Best-in-class durability – one of HOYA’s hardest AR coatings

• Scratch-resistant – keeps lenses looking new longer

• Anti-reflective – reduces glare from headlights, screens, and bright lights

• Water & smudge resistant – easy to clean and maintain

• UV protection – shields eyes and surrounding skin from harmful UV rays

👉 Think of EX3 as the “all-around protection shield” for your glasses.

HOYA Recharge™ Lens Coating

HOYA Recharge™ is an advanced anti-reflective coating specially designed for today’s digital lifestyles.

Benefits:

• Reduces eye strain caused by prolonged screen time

• Minimizes glare from phones, tablets, and computers

• Maintains natural color balance and contrast

• Protects eyes from high-energy blue light while allowing beneficial blue light through

• Durable and easy-to-clean thanks to HOYA’s Hi-Vision LongLife technology

Progressive Lenses

HOYA Lifestyle 4

• HOYA’s latest progressive lens generation, offering personalized visual balance

• Optimized for modern lifestyles: digital devices, office work, and on-the-go activities

• Available in different design profiles depending on whether you need stronger support for near vision (reading/phone) or intermediate vision (computer/office)

• Wider, clearer vision zones and smoother transitions compared to Lifestyle 3