Biomaterial/Biomechanics Platform
The AcrySof® IQ ReSTOR® IOL is based on long-proven technology. It uses the same AcrySof® hydrophobic lens material that has been implanted in over 25 million human eyes since 1991. It also features the same biomechanical advantages as the AcrySof® Single-Piece lens.
These qualities are important in optimizing outcomes, particularly when providing a full range of uncorrected vision that may result in spectacle freedom.
Biomaterial
Studies on the original monofocal AcrySof® lenses have demonstrated a high level of material biocompatibility within the eye.¹, ² In addition, these studies have shown significantly less lens epithelial cell proliferation.³ AcrySof® lenses also have low Nd:YAG rates4 in comparison with PMMA and silicone lenses.
Biomechanics
The AcrySof® IQ ReSTOR® IOL also retains the biomechanical advantages of the AcrySof® Single-Piece design. The haptic design of AcrySof® lenses adapts and conforms to different capsular bag sizes and shapes.5 As a result, it remains well centered within the capsular bag. This quality is known as centration, and ensures that the lens stays where it was placed during surgery.
Another key advantage of AcrySof® lenses is the use of STABLEFORCE® haptics. These haptics have a lower tensile strength and can withstand more deformation than do PMMA haptics. This results in greater stability in the capsular bag. As a result, the lens provides both stability and centration.
- Oshika, T., et al. "Adhesion of lens capsule to intraocular lenses of PMMA, silicone, and acrylic foldable materials: an experimental study." Br J Ophthalmol, May 1998; 82 (5):468.
- Linnola. RJ, Sund M, Ylnen R, Pihlajaniemi T. "Adhesion of soluble fibronectin, laminin, and collagen type IV to intraocular lens materials." J Cataract Refract Surg. 1999; 25:1486-1491.
- Hollick, E.J., et al. "Lens epithelial cell regression on the posterior capsule with different intraocular lens materials." BR J Ophthalmol, 1998; 82: 1182-1188.
- Apple D., "Eradication of Posterior Capsule Opacification," Ophthalmology. March 2001; 108:505-518.
- Presented by Stephen Lane, MD at the ASCRS/ASOA Symposium and Congress held April 28-May 2, 2001 in San Diego, CA.
Practice Performance
This Practice Performance Zone is the online companion to the Premium Lens practicePAK. Here you will find electronic versions of all the items discussed in the practicePAK as well as new items as they become available.
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