STAAR Elastic Toric Lens
Model AA4203TF
Model AA4203TF is a single piece toric silicone IOL placed completely in the capsular bag. The lens is designed to correct 1.4 to 2.3D of astigmatism during cataract surgical correction. The lens has large fenestrations to enhance postoperative fixation. This allows fibrous epithelial cells to migrate through the lens holes and assures optic centration and long-term stability.
Optic Material: Silicone, covalently-bonded UV absorbing (10 percent transmission at 395nm). Material is completely biologically and chemically inert.
Optic Specifications: 6.0 mm, Biconvex, 1:1 Ratio
Length: 10.8 mm
Haptics: Silicone Single Piece, 1.15mm Diameter Fenestration.
Diopter Range/Increments: 24.0– 28.5 (0.5 increments)
Cylinders: 2.0 and 3.5
Suggested A-Constant/ACD: 118.5, 5.26
Injectors: MSI-TR, MSI-PR
Cartridges: MTC-60c
Available: United States, Internationally
STAAR Elastic Toric Lens
Model AA4203TL
Used for lens replacement during surgical vision correction of an astigmatic cataract patient, model AA4203TL is a single piece toric silicone IOL placed completely in the capsular bag. The cataract IOL is designed to correct 1.4 to 2.3D of astigmatism. The AA4203TL lens has large fenestrations to enhance postoperative fixation. This allows fibrous epithelial cells to migrate through the lens holes and assures optic centration and long-term stability.
Optic Material: Silicone, covalently-bonded UV absorbing (10 percent transmission at 395nm). Material is completely biologically and chemically inert.
Optic Specifications: 6.0 mm, Biconvex, with 2.0 or 3.5D Cylinder
Length: 11.2 mm
Haptics: Silicone Single Piece, 1.15mm Diameter Fenestration.
Diopter Range/Increments: 9.5 – 23.5 (0.5 increments)
Cylinders: 2.0 and 3.5
Suggested A-Constant/ACD: 118.5, 5.26
Injectors: MSI-TR, MSI-PR
Cartridges: MTC-60c
Available: United States, Internationally
STAAR Toric Silicone Single Piece IOL
The forerunner in toric lens design: Effective, safe, and reliable vision correction in one innovative, astigmatic cataract procedure.
• Injectable single-piece STAAR TORIC IOL provides both cylindrical and spherical optic correction
o Incorporated toric optic corrects preexisting astigmatism, eliminating need to alter corneal curvature
o Improves uncorrected vision that could negatively affect visual acuity
• Available in a range of spherical powers with cylindrical adds of 2.0D and 3.5D
o At the corneal plane, the optics of the 2.0D and 3.5D lenses correct 1.4D and 2.3D of astigmatism, respectively
Intuitive lens design provides a smarter approach to astigmatic cataract surgery
• Astigmatic correction applied to the intraocular lens eliminates need for additional procedures
• Frosted plate haptics and large fenestrations promote bioadhesion for capsular bag stability
• The STAAR TORIC IOL is available in 10.8 mm and 11.2 mm sizes�ideal for implantation in the capsular bag
o Longer length accommodates eyes with longer axial length and may aid rotational stability12
• Plate style design allows for simplified injection and easy placement
The benefits of silicone lens composition are inherently clear
• STAAR silicone lens technology induces fewer higher order aberrations than acrylic lenses11
• The lower refractive index of silicone lenses compared to acrylic lenses results in lower incidence of halos, glare, and ghosting
o Light is better transmitted through the silicone lens but commonly reflected through the acrylic lens
Design and placement of the STAAR TORIC IOL reinforces rotational stability
• Improved, longer STAAR TORIC IOL provides excellent rotational stability12
o Improved design helps prevent IOL rotation associated with increased axial length
• Planar plate design resists rotation as compared to loop lens designs
o Provides consistent axial position
o Large fenestration allows fibrous lens epithelial cells to migrate through and around the lens hole to lock the lens to the equator of the capsular bag for added stability
Methods and techniques for predictable, high quality outcomes
• The STAAR TORIC IOL is best used in cataract patients with 1.5 to 3.5 diopters of regular preexisting astigmatism ("bow-tie" or "wedge" patterns)
• Surgeons are advised to measure astigmatism with keratometry to determine the appropriate power to best reduce postoperative refractive cylinder
o Corneal topography and refraction should also be used to verify the steep corneal meridian
• To ease insertion, the MICROSTAAR Injector can be used to guide the lens through the incision
• Cylinder axis marks on the lens allow precise alignment with the steep corneal meridian
Optimize your procedure using the "PreVize® Optimized" Toric Calculator, available at STAARToric.com
• This exclusive tool includes:
o A surgical worksheet that includes preoperative data
o A list of suggested surgical powers
o A clearly labeled illustration of the exact placement of the STAAR Toric IOL
Position to Steep Corneal Meridian
Spherical power: visit www.staartoric.com to calculate IOL powers and lens orientation.
Cylinder Power Selected According to Corneal Astigmatism Nomogram as Follows:
Nomogram assumes astigmatically neutral surgery.
1With the Rule, steep corneal meridian between 46 to 134; Against the Rule, steep corneal meridian between 0 to 45 and 135 to 180.
2Approximate value of the equivalent IOL cylinder power at the cornea.
3Combine with Astigmatic Keratotomy or Limbal Relaxing Incisions.
