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Phase 3 N=269 Randomized Double-blind Treatment

Clinical Evaluation of a 1-Piece Intraocular Lens

Cataract

Enrolled (actual)
269
Serious AEs
2.2%
Results posted
Jul 2013
Primary outcome: Primary: Mean Percent Reduction in Cylinder — 32; 75; 76. percentage of reduction in cylinder — p=<0.0001

Study Design & Population

Study type
Interventional
Phase
Phase 3
Interventions
Tecnis ZCB00 IOL (control) (Device); Toric Intraocular lens (Device)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Abbott Medical Optics
Primary completion
Oct 2011

Outcome Measures

OutcomeResultp-value
PRIMARY
Mean Percent Reduction in Cylinder
32; 75; 76. <0.0001 sig
SECONDARY
Uncorrected Distance Visual Acuity (UCDVA)
0.16; 0.10; 0.11 0.0009 sig

Summary

The aims of this study are to: * Demonstrate a reduction in postoperative cylinder compared to results from the control lens * Demonstrate better uncorrected distance visual acuity compared to the control lens

Eligibility Criteria

Inclusion Criteria

  • Minimum 18 years of age
  • Cataract for which phacoemulsification extraction and posterior chamber IOL implantation has been planned for both eyes
  • Preoperative best corrected distance visual acuity (BCDVA)of 20/40 or worse (Snellen), with or without glare, for each eye
  • BCDVA projected to be better than 20/30 following cataract removal and IOL implantation for each eye
  • Preoperative keratometric cylinder of 0.75 diopters to 3.62 diopters for each eye (with exception of second eyes with 0.0-0.75 diopters planned to receive non-toric IOL)
  • Clear intraocular media other than cataract in both eyes
  • Availability, willingness, ability and sufficient cognitive awareness to comply with examination procedures and study visits
  • Signed informed consent and HIPAA authorization

Exclusion Criteria

  • Requiring IOLs outside spherical power range of +15.0 to +28.0 diopters
  • Dilated pupil size less than 5.5 mm or the presence of any pupil abnormalities (non-reactive, fixed pupils, or abnormally shaped pupils)in either eye
  • Previous corneal or intraocular surgery in either eye
  • Irregular corneal astigmatism in either eye
  • Corneal pathology/abnormality potentially affecting topography in either eye
  • Corneal abnormalities such as stromal, epithelial or endothelial dystrophies in either eye
  • Inability to achieve keratometric stability in either eye for contact lens wearers
  • Subjects with diagnosed degenerative visual disorders in either eye(eg., macular degeneration or other retinal disorders) that are predicted to cause future acuity losses to a level of 20/30 or worse
  • Subjects with conditions associated with increased risk of zonular rupture, including capsular or zonular abnormalities that may lead to IOL decentration, including pseudoexfoliation, trauma, or posterior capsule defects
  • An eccentric anterior capsulorhexis, zonular damage/rupture or capsular tear/rupture during the cataract extraction procedure
  • Use of systemic or ocular medications that may affect vision
  • Prior, current, or anticipated use during the course of the nine month study of tamsulosin or silodosin (e.g., Flomax, Flomaxtra, Rapaflo)likely to affect dilation or iris structure
  • Poorly-controlled diabetes
  • Acute, chronic, or uncontrolled systemic disease or illness that would, in the opinion of the investigator, increase the operative risk or confound the outcome(s) of the study (e.g., immunocompromised, connective tissue disease, etc.)
  • Uncontrolled ocular hypertension or glaucomatous changes in the retina or visual field in either eye
  • Known ocular disease or pathology that may affect visual acuity or that may require surgical intervention during the course of the study (macular degeneration, cystoid macular edema, diabetic retinopathy, etc.)
  • Patient is pregnant, plans to become pregnant, is lactating or has another condition associated with the fluctuation of hormones that could lead to refractive changes
  • Concurrent participation or participation during 30 days prior to preoperative visit in any other clinical trial
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT01098812). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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