ACRYSOF® Toric NATURAL T9 Intraocular Lens (IOL)

Alcon

Status: Completed

Conditions: Bilateral Cataract

Treatments: Device: ACRYSOF® Single-Piece NATURAL Toric IOL Model SN60T9 and Model SN60T8.

Study type: Interventional

Funder types: Industry

Identifiers

NCT00967473

C-08-062

Details and patient eligibility

About

The purpose of this study is to describe rates of spatial distortions related to intraocular lens (IOL) misalignment for ACRYSOF® Single-Piece Toric NATURAL IOL Model SN60T9 when implanted bilaterally into the capsular bag following phacoemulsification in adult patients with bilateral cataract and regular corneal astigmatism. Subjects were implanted with the Model SN60T9 in the first operative (study) eye and either Model SN60T9 or Model SN60T8 in the second operative eye.

Enrollment: 15 patients

Sex: All

Ages: 21+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adults, 21 years of age or older at the time of surgery, of either gender or any race, diagnosed with bilateral cataracts;
• Calculated lens power is within the available range;
• Willing and able to complete all required postoperative visits;
• Planned cataract removal by phacoemulsification;
• Potential postoperative visual acuity of 0.2 logMAR or better in study eyes;
• Preoperative astigmatism of 4.11 - 4.62 Diopter (D) of predicted crossed cylinder as calculated by the study specific web-based Alcon® Toric IOL Calculator in the first operative eye. Corneal incisions made to reduce astigmatism will not be allowed during the course of the study;
• Preoperative astigmatism of 3.60 - 4.62 D of predicted crossed cylinder as calculated by study specific web-based Alcon® Toric IOL Calculator in the second operative eye;
• Clear intraocular media other than cataract;
• Able to comprehend and sign a statement of informed consent;
• Preoperative Best Corrected Distance Visual Acuity (BCDVA) worse than 0.2 logMAR;
• Pupil size greater than or equal to 6 mm after dilation;
• The subject must be able to undergo second eye surgery within 30 days of first eye surgery.

Exclusion criteria

• Irregular corneal astigmatism;
• Keratopathy/Keratectasia - any corneal abnormality, other than regular corneal astigmatism, including but not limited to the following; keratoconus, keratoglobus, keratolysis, keratomalacia, keratomycosis, and corneal plana;
• Any inflammation or edema (swelling) of the cornea, including but not limited to the following; keratitis, keratoconjunctivitis, and keratouveitis;
• Previous corneal refractive surgery;
• Subjects with diagnosed degenerative visual disorders (e.g., macular degeneration or other retinal disorders) that are predicted to cause future acuity losses to a level worse than 0.2 logMAR;
• Amblyopia;
• Clinically severe corneal dystrophy (e.g., epithelial, stromal, or endothelial dystrophy);
• Diabetic retinopathy;
• Extremely shallow anterior chamber, not due to swollen cataract;
• Microphthalmos;
• Previous retinal detachment;
• Previous corneal transplant;
• Recurrent severe anterior or posterior segment inflammation of unknown etiology;
• Rubella or traumatic cataract;
• Iris neovascularization;
• Uncontrolled glaucoma;
• Aniridia;
• Optic nerve atrophy;
• Pregnancy;
• Any subject currently participating in another investigational drug or device study that may confound the results of this investigation.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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15 participants in 1 patient group

Toric Intraocular Lens

Experimental group

Description:

ACRYSOF® Single-Piece Toric NATURAL Intraocular Lens (IOL) Models SN60T9/SN60T8

Treatment:

Device: ACRYSOF® Single-Piece NATURAL Toric IOL Model SN60T9 and Model SN60T8.