Overview & Positioning

Model Name: Avansee Preload1P Clear CP 2.2R
It is a one‑piece hydrophobic acrylic intraocular lens using a modified C‑loop haptic design. Positioned in Kowa’s “Preload1P” family (preloaded lens system).

Material & Optical Properties

• Material: Hydrophobic soft acrylic (Clear version)
  • Lens‑edge design: 360° square edge to reduce posterior capsule opacification (PCO)
  • Index of refraction: 1.519 (at 35 °C)
  • Aberration neutrality: Aspheric, aberration‑neutral design

Power Ranges & Diopter Options

• Spherical power range: +6.0 D to +30.0 D in 0.5 D increments
  • Cylinder / Toric options: None (monofocal non‑toric design)

Incision / Delivery & Surgery‑Related Specs

• Incision size:
  – +6.0 D to +26.0 D: 2.4 mm (corneal) / 2.2 mm (scleral‑corneal)
  – +26.5 D to +30.0 D: 2.6 mm (corneal) / 2.4 mm (scleral‑corneal)
  • A‑constants:
  – Ultrasound: 118.6
  – Optical / SRK‑T: 119.0
  • Delivered via Kowa’s preloaded injector system for safe and easy implantation.
  • Recommended OVD volume for nozzle lubrication: at least 0.17 mL.
  • Avoid highly viscous or chondroitin sulfate‑based OVDs to prevent nozzle blockage.

Advantages & Clinical Considerations

• Preloaded delivery minimizes handling and reduces contamination risk.
  • 360° square edge design helps resist PCO.
  • Aberration‑neutral optics preserve natural image quality.
  • Wide diopter range (+6 D to +30 D) suitable for most patients.
  • Compatible with small incision cataract surgery (2.2–2.4 mm).