Toric IOLs for Low Cylinder Astigmatism

An Opportunity to Do More for Your Patients

Refractive vision is built on correction of both defocus and astigmatism. Patients need functional visual acuity for driving at night and other ordinary activities. But low-level astigmatism can have a negative impact on functional vision.1 Visually significant blur starts at just 0.5 D cylinder.2

Visual Conditions Are Rarely Optimal
Outside Your Clinic1

It’s easy to overlook low cylinder astigmatism in the clinic. After all, the lighting is great, charts are high contrast and glare is absent. But on the road at night, where functional visual acuity is essential to your patients, low cylinder astigmatism can have a significant impact.

Small amounts of astigmatism have been proven to have a big impact on visual acuity.

*Percentages of eyes with logMAR visual acuity (VA), logMAR functional visual acuity (FVA), and low contrast visual acuity (LCVA) of ≥0.0 (20/20) with additions of different values of against-the-rule (ATR) astigmatism. With-the-rule (WTR) results were the same or worse under all conditions. Functional visual acuity refers to a patient’s visual performance related to daily activities such as driving, reading and visual display-terminal work. Low-contrast visual acuity refers to visual performance related to tasks such as reading road signs and navigating at night.
p<0.05

You May See More Toric Candidates Than You Realize

Low cylinder patients are the largest population eligible for toric IOLs. When you start evaluating toric candidacy at 0.5 D cylinder,** you may increase your opportunity to deliver excellent, lasting visual acuity.

**Potential Astigmatism Management patients may have 0.75 D or higher total corneal astigmatism, including those with 0.5 D or higher ATR anterior cylinder, as well as patients with 1.25 D or higher WTR anterior cylinder.

Prevalence of Corneal Astigmatism Prior to Cataract Surgery3

52% of cataract patients are candidates for toric IOLs, including patients within 0.5 D–1.50 D of astigmatism.

How Do You Treat This Large Patient Population?

Even low levels of cylinder can make driving and watching TV a struggle for cataract patients.
Even low levels of cylinder can make driving and watching TV a struggle for cataract patients.

Transportation, connectivity and entertainment are important to patients' happiness, and in the Refractive Outcomes Era, cataract surgery is evaluated by quality of vision and overall satisfaction.4

EXPLORE ASTIGMATISM MANAGEMENT METHODS

  1. Watanabe K, Negishi K, Kawai M, Torii H, Kaido M, Tsubota K. Effect of experimentally induced astigmatism on functional, conventional, and low-contrast visual acuity. J Refract Surg. 2013;29(1):19-25.
  2. Miller A, Kris M, Griffiths A. Effect of small focal errors on vision. Opt Vis Sci. 1997;74(7):521-526.
  3. Hill Distribution Data. Provided courtesy of Dr. Warren Hill. http://www.doctor-hill.com/physicians/docs/Astigmatism.pdf. Accessed November 16, 2016.
  4. Henderson BA, Solomon K, Masket S, et al. A survey of potential and previous cataract-surgery patients: what the ophthalmologist should know. Clin Ophthalmol. 2014;8:1595-1602.

VIEW IMPORTANT PRODUCT INFORMATION FOR:

ACRYSOF® IQ TORIC INTRAOCULAR LENSES IMPORTANT PRODUCT INFORMATION

CAUTION: Federal (USA) law restricts this device to the sale by or on the order of a physician.

INDICATIONS: The AcrySof® IQ Toric posterior chamber intraocular lenses are intended for primary implantation in the capsular bag of the eye for visual correction of aphakia and pre-existing corneal astigmatism secondary to removal of a cataractous lens in adult patients with or without presbyopia, who desire improved uncorrected distance vision, reduction of residual refractive cylinder and increased spectacle independence for distance vision.

WARNINGS/PRECAUTIONS: Careful preoperative evaluation and sound clinical judgment should be used by the surgeon to decide the risk/benefit ratio before implanting a lens in a patient with any of the conditions described in the Directions for Use labeling. Toric IOLs should not be implanted if the posterior capsule is ruptured, if the zonules are damaged, or if a primary posterior capsulotomy is planned. Rotation can reduce astigmatic correction; if necessary lens repositioning should occur as early as possible prior to lens encapsulation. All viscoelastics should be removed from both the anterior and posterior sides of the lens; residual viscoelastics may allow the lens to rotate.

Optical theory suggests that high astigmatic patients (i.e., > 2.5 D) may experience spatial distortions. Possible toric IOL related factors may include residual cylindrical error or axis misalignments. Prior to surgery, physicians should provide prospective patients with a copy of the Patient Information Brochure available from Alcon for this product informing them of possible risks and benefits associated with the AcrySof® IQ Toric Cylinder Power IOLs.

Studies have shown that color vision discrimination is not adversely affected in individuals with the AcrySof® Natural IOL and normal color vision. The effect on vision of the AcrySof® Natural IOL in subjects with hereditary color vision defects and acquired color vision defects secondary to ocular disease (e.g., glaucoma, diabetic retinopathy, chronic uveitis, and other retinal or optic nerve diseases) has not been studied. Do not resterilize; do not store over 45° C; use only sterile irrigating solutions such as BSS® or BSS PLUS® Sterile Intraocular Irrigating Solutions.

ATTENTION: Reference the Directions for Use labeling for a complete listing of indications, warnings and precautions.