Clinical Evaluation and Comparison of the Tecnis Symfony Optiblue and Tecnis Symfony IOLs

August 21, 2024 updated by: Dr. Daniel H. Chang, MD, Empire Eye and Laser Center

Clinical Evaluation of Violet Light Filtration and High-resolution Lathing on a Diffractive Extended Depth of Focus Intraocular Lens (IOL)

The goal of this clinical study is to compare the Tecnis Symfony Optiblue intraocular lens implant to the Tecnis Symfony intraocular lens implant in patients over 22 years old with cataracts in both eyes. The main questions it aims to answer are:

Which lens has less nighttime side effects? Which lens has higher patient satisfaction?

Participants will undergo a minimum of 7 study visits where they will complete a variety of vision tests and vision questionnaires.

Study Overview

Detailed Description

This is 6 month, prospective, single center, subject/evaluator masked, bilateral, randomized clinical investigation of the TECNIS Symfony Model ZXR00V/ ZXW150 IOLs versus the TECNIS Symfony Model ZXR00/ZXT150 control IOL.

The study will enroll approximately 60 subjects to achieve approximately 54 randomized and bilaterally implanted subjects, resulting in approximately 25 evaluable subjects in each lens group at 6 months. Subjects are to be implanted with the same IOL in both eyes, the ZXR00V/ZXW150 or the ZXR00/ ZXT150 control IOL. The eye implanted first will be considered the primary study eye.

Surgeons will perform routine, small-incision cataract surgery and implant the study lenses using an implantation system qualified by the respective manufacturer for use with that IOL. The target for refractive outcomes will be emmetropia for both eyes.

All subjects will undergo a minimum of 7 study visits: Preoperative for both eyes; Operative for each eye; 1 week first eye and second eye, 1 month and 6 month visits for both eyes together.

The primary endpoint is patient reported nighttime dysphotopsia symptoms as measured by the PRVSQ v2 questionnaire.

The secondary endpoints are 25% low contrast visual acuity with glare and patient satisfaction.

OTHER ENDPOINTS

  • Monocular photopic uncorrected distance visual acuity (UCDVA)
  • Binocular UCDVA and uncorrected near visual acuity (UCNVA) at 40 cm
  • 10% and 25% low contrast acuity without glare
  • Residual refractive error
  • Natural binocular reading distance
  • Distance of subjective near blur
  • Lens findings/complications
  • Spectacle use
  • Other ocular/visual symptoms (non-directed chief complaint)
  • Patient satisfaction and recommendation
  • Time with physician in exam room

Study Type

Interventional

Enrollment (Actual)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Bakersfield, California, United States, 93309
        • Empire Eye and Laser Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • All criteria apply to each study eye

    • Minimum 22 years of age
    • Bilateral cataracts for which posterior chamber IOL implantation has been planned
    • Preoperative best corrected distance visual acuity (BCDVA) of 20/40 Snellen or worse with a glare source or 20/40 Snellen or worse without a glare source
    • Potential for postoperative BCDVA of 20/30 Snellen or better
    • Corneal astigmatism:
    • Normal corneal topography
    • Preoperative corneal astigmatism range from 0 D - 2.0 D
    • Clear intraocular media other than cataract in each eye
    • Availability, willingness, and sufficient cognitive awareness to comply with examination procedures
    • Signed informed consent and HIPAA authorization or equivalent documentation necessary to comply with applicable privacy laws pertaining to medical treatment in the governing countries
    • Ability to understand and respond to a questionnaire in English

Exclusion Criteria:

  • All criteria apply to each study eye:

    • Requiring an intraocular lens power outside the available range of power
    • Any clinically significant pupil abnormalities (non-reactive, fixed pupils, or abnormally shaped pupils)
    • Irregular corneal astigmatism
    • Inability to focus or fixate for prolonged periods of time (e.g., due to strabismus, nystagmus, etc.)
    • Prior corneal refractive surgery (LASIK, LASEK, radial keratotomy (RK), photorefractive keratectomy (PRK), etc.) or intraocular surgery. Note: Prophylactic peripheral iridotomies and peripheral laser retinal repairs that, in the opinion of the investigator will not confound study outcomes or increase risk to the subject, are acceptable.
    • Corneal abnormalities such as stromal, epithelial, or endothelial dystrophies that are predicted to cause visual acuity losses to a level worse than 20/30 Snellen during the study
    • Inability to achieve keratometric stability for contact lens wearers
    • Recent ocular trauma or ocular surgery that is not resolved/stable or may affect visual outcomes or increase risk to the subject
    • Subject with conditions associated with increased risk of zonular rupture, including capsular or zonular abnormalities that may lead to IOL decentration or tilt, such as pseudoexfoliation, trauma, or posterior capsule defects
    • Use of systemic or ocular medications that may affect vision
    • Prior, current, or anticipated use during the course of the 6 month study of tamsulosin or silodosin (e.g., Flomax, Flomaxtra, Rapaflo) that may, in the opinion of the investigator, confound the outcome or increase the risk to the subject (e.g., poor dilation or a lack of adequate iris structure to perform standard cataract surgery)
    • Poorly controlled diabetes
    • Acute, chronic, or uncontrolled systemic or ocular disease or illness that, in the opinion of the investigator, would increase the operative risk or confound the outcome(s) of the study (e.g., immunocompromised, connective tissue disease, glaucomatous changes in the fundus or visual field, ocular inflammation, etc.). Note: controlled ocular hypertension without glaucomatous changes (optic nerve cupping and visual field loss) is acceptable.
    • Known ocular disease or pathology that, in the opinion of the investigator,
    • may affect visual acuity
    • may require surgical intervention during the course of the study (macular degeneration, cystoid macular edema, diabetic retinopathy, uncontrolled glaucoma, etc.)
    • may be expected to require retinal laser treatment or other 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 within 60 days prior to preoperative visit in any other clinical trial
    • Desire for monovision correction

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Tecnis Symfony Optiblue
Tecnis Symfony Optiblue/Tecnis Symfony Optiblue Toric (ZXR00V/ZXW150)
Multifocal IOL with violet light filtration and high-resolution lathing
Active Comparator: Tecnis Symfony
Tecnis Symfony/Tecnis Symfony Toric (ZXR00/ZXT150)
Multifocal IOL with ultraviolet filtration

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient reported nighttime dysphotopsia symptoms
Time Frame: Pre-op visit, 1 month post-op visit, 6 month post-op visit
Patient-Reported Visual Symptoms Questionnaire (PRVSQ)
Pre-op visit, 1 month post-op visit, 6 month post-op visit

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Low contrast visual acuity with glare
Time Frame: 1 month post-op visit, 6 month post-op visit
Mesopic 25% low contrast visual acuity with glare
1 month post-op visit, 6 month post-op visit
Patient overall satisfaction
Time Frame: 1 month post-op visit, 6 month post-op visit
Patient Recommendation Questionnaire
1 month post-op visit, 6 month post-op visit

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Monocular photopic UCDVA
Time Frame: Pre-op visit
Uncorrected distance visual acuity (UCDVA) - photopic, monocular (Snellen visual acuity)
Pre-op visit
Monocular photopic UCDVA
Time Frame: 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Uncorrected distance visual acuity (UCDVA) - photopic, monocular (The Early Treatment Diabetes Retinopathy Study (ETDRS) visual acuity) ETDRS letters range from 58.18 mm to 2.92 mm in height, corresponding to Snellen visual acuity fractions of 20/200 to 20/10, respectively. The larger the number, the worse the visual acuity.
1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Binocular UCDVA
Time Frame: 1 month post-op visit, 6 month post-op visit
Uncorrected distance visual acuity (UCDVA) - photopic, binocular (The Early Treatment Diabetes Retinopathy Study (ETDRS) visual acuity) ETDRS letters range from 58.18 mm to 2.92 mm in height, corresponding to Snellen visual acuity fractions of 20/200 to 20/10, respectively. The larger the number, the worse the visual acuity.
1 month post-op visit, 6 month post-op visit
UCNVA at 40 cm
Time Frame: 1 month post-op visit, 6 month post-op visit
Uncorrected near visual acuity (UCNVA) - photopic, binocular at 40 cm (The Early Treatment Diabetes Retinopathy Study (ETDRS) visual acuity) ETDRS letters range from 58.18 mm to 2.92 mm in height, corresponding to Snellen visual acuity fractions of 20/200 to 20/10, respectively. The larger the number, the worse the visual acuity.
1 month post-op visit, 6 month post-op visit
Low contrast acuity without glare
Time Frame: 1 month post-op visit, 6 month post-op visit
10% and 25% low contrast acuity without glare (photopic and mesopic)
1 month post-op visit, 6 month post-op visit
Residual refractive error
Time Frame: 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Best corrected distance visual acuity (BCDVA) - photopic, monocular
1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Natural binocular reading distance
Time Frame: 1 month post-op visit, 6 month post-op visit
Natural binocular reading distance (cm)
1 month post-op visit, 6 month post-op visit
Distance of subjective near blur
Time Frame: 1 month post-op visit, 6 month post-op visit
Distance of subjective near blur (cm)
1 month post-op visit, 6 month post-op visit
Lens findings/complications
Time Frame: 1 day post-op visit first and second eye, 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Biomicroscopic slit-lamp exam including determination of medical and lens findings/complications
1 day post-op visit first and second eye, 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Spectacle use
Time Frame: 1 month post-op visit, 6 month post-op visit
Patient-Reported Spectacle Independence Questionnaire (PRSIQ)
1 month post-op visit, 6 month post-op visit
Other ocular/visual symptoms (non-directed chief complaint)
Time Frame: 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
A comprehensive list of all other self-reported ocular/visual complaints, in the patient's own words, will be compiled
1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Patient satisfaction and recommendation
Time Frame: 1 month post-op visit, 6 month post-op visit
Patient Recommendation Questionnaire
1 month post-op visit, 6 month post-op visit
Time with physician in exam room
Time Frame: 1 day post-op visit first and second eye, 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit
Time with physician in exam room (minutes)
1 day post-op visit first and second eye, 1 week post-op visit first and second eye, 1 month post-op visit, 6 month post-op visit

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Daniel H Chang, MD, Empire Eye and Laser Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 21, 2022

Primary Completion (Actual)

March 9, 2023

Study Completion (Actual)

March 9, 2023

Study Registration Dates

First Submitted

August 20, 2024

First Submitted That Met QC Criteria

August 21, 2024

First Posted (Actual)

August 23, 2024

Study Record Updates

Last Update Posted (Actual)

August 23, 2024

Last Update Submitted That Met QC Criteria

August 21, 2024

Last Verified

August 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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