Specifications
- Packing: 1/pk
- Material: Hexafocon A (HA)
- Dk/t @ -3.00D: 100
- Power Range: +40.00 to -40.00
- Base Curve (mm): 4.20 to 8.80
- Diameter (mm): 7.5 to 11.0
- Edge Lift: Std (0.0), Std flat (+1.0), Std steep(-0.5)
-1.3 decreased (steep) to +3.0 increased (flat) (0.1 step)
Penerangan
Visual Restoration: Rose K2™ Keratoconus Gas Permeable Lens
Rose K2™ is a world-renowned Rigid Gas Permeable (RGP) lens specifically engineered for keratoconus and other corneal irregularities. For patients with keratoconus, whose corneas bulge into an irregular cone shape, standard lenses often fail to fit or provide clarity. Rose K2™ utilizes a unique "biomimetic" design that matches the cone's morphology. By creating a smooth tear layer over the eye, it offsets corneal irregularities to deliver sharp, stable vision.
Core Technology & Benefits
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Complex Systemic Geometry: Rather than simple curves, the Rose K2™ features a sophisticated multi-curve design. This allows the lens to follow the natural change in curvature from the center to the periphery of the cornea, ensuring superior centration and pressure distribution over the cone.
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Optimized Edge Lift Control: The lens allows practitioners to make minute adjustments to the edge lift. A proper edge profile ensures healthy tear circulation under the lens, delivering necessary oxygen and nutrients while significantly enhancing wearing comfort.
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Aberration Control Technology: To address the glare, halos, and ghosting common in keratoconus, Rose K2™ features specialized optics in the visual zone. This focuses light more accurately, noticeably improving visual contrast in low-light environments.
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High Oxygen Transmission: Typically manufactured using high-Dk materials, Rose K2™ ensures a healthy oxygen metabolic environment, which is vital for the thinned and often sensitive corneal tissue found in keratoconus patients.
QNA
1. Why is Rose K2™ more effective for keratoconus than standard RGPs?
Standard RGPs are designed for regular corneal shapes. Rose K2™ incorporates an asymmetrical design philosophy that wraps around and "smooths" the corneal protrusion. By filling the space with a tear lens, it creates a perfect spherical optical interface, eliminating ghost images and distortion.
2. Is it painful for keratoconus patients to wear these lenses?
There is an initial foreign body sensation, which is common with all rigid lenses. However, the optimized edge profile of Rose K2™ minimizes friction with the eyelids. With a professional step-by-step fitting process, most patients achieve all-day comfort within 1 to 2 weeks.
3. Can this lens stop the progression of keratoconus?
The primary function of Rose K2™ is visual correction rather than medical treatment or slowing disease progression. To halt progression, corneal cross-linking (CXL) is typically required. However, Rose K2™ significantly improves quality of life and can often delay the need for corneal transplantation.
4. How should I maintain Rose K2™ lenses?
Given the sensitivity of the keratoconic eye, using a high-quality RGP care system is essential. Daily rubbing to remove protein deposits and disinfection in a dedicated solution is mandatory. Given the specialized nature of the fit, lenses should generally be replaced every 1-2 years under professional guidance.
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