Symfony/Synergy IOL Combination Outcomes

Center For Sight (Other)
Overall Status
Recruiting ID
Science in Vision (Other)

Study Details

Study Description

Brief Summary

Current visual outcomes expectations of cataract patients are similar to those of refractive surgery patients. Their desire is to be spectacle independent for far, intermediate and near vision activities. Some may have already enjoyed freedom from glasses and would like to continue after the cataracts are removed. Different options are available. These options include: mono-vision and presbyopia correcting intraocular lenses (IOL). Presbyopia correcting IOLs include accommodative, multifocals and extended depth of focus (EDOF) IOLs. In a previous study that evaluated the visual outcomes of an EDOF IOL when combined with a multifocal IOL with a +3.25 D add in patients with or without astigmatism undergoing routine cataract surgery showed good outcomes with high patient satisfaction and less dependance on glasses for intermediate and near activities. As technology evolves, new lens models are available in the market. The purpose of this study is to evaluate the latest EDOF and a hybrid multifocal lenses when combined.

Condition or Disease Intervention/Treatment Phase
  • Device: Symfony & Synergy IOL combination

Study Design

Study Type:
Anticipated Enrollment :
40 participants
Observational Model:
Time Perspective:
Official Title:
Evaluating A Novel Strategy: The Synergy IOL Mixed and Matched With the Symfony With Intelilight
Actual Study Start Date :
Oct 17, 2022
Anticipated Primary Completion Date :
Oct 16, 2023
Anticipated Study Completion Date :
Oct 16, 2023

Arms and Interventions

Arm Intervention/Treatment
Symfony & Synergy IOL combination

Device: Symfony & Synergy IOL combination
The Symfony IOL will be implanted in the dominant eye while the Synergy IOL will be implanted in the non-dominant eye.

Outcome Measures

Primary Outcome Measures

  1. Binocular defocus curve [3 months]

Secondary Outcome Measures

  1. Patient satisfaction questionnaire [3 months]

    Percentage for participants who are satisfied or completely satisfied with their near vision will be assessed

  2. Spectacle independence for near activities questionnaire [3 months]

    Percentage of participants reporting the need to wear glasses for near activities will be assessed.

Eligibility Criteria


Ages Eligible for Study:
50 Years and Older
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Inclusion Criteria:
  1. Subject is undergoing bilateral lens extraction with intraocular lens implantation of the Symfony with InteliLight in the dominant eye and a Synergy in the non-dominant eye.

  2. Gender: Males and Females.

  3. Age: 50 years and older.

  4. Willing and able to provide written informed consent for participation in the study

  5. Willing and able to comply with scheduled visits and other study procedures.

  6. Scheduled to undergo standard cataract surgery with topical anesthesia in both eyes within 2 to 30 days between surgeries

  7. Subjects who require an IOL power in the range of +5.00 D to +34.0 D only.

  8. Subjects who require a toric IOL up to +3.75 D at the IOL plane (2.57 D corneal plane).

  9. Potential postoperative visual acuity of 0.2 logMAR (20/32 Snellen) or better in both eyes.

Exclusion Criteria:
  1. Severe preoperative ocular pathology: amblyopia, rubella cataract, proliferative diabetic retinopathy, shallow anterior chamber, macular edema, retinal detachment, aniridia or iris atrophy, uveitis, history of iritis, iris neovascularization, medically uncontrolled glaucoma, microphthalmos or macrophthalmos, optic nerve atrophy, macular degeneration (with anticipated best postoperative visual acuity less than 20/30), advanced glaucomatous damage, etc.

  2. Uncontrolled diabetes.

  3. Use of any systemic or topical drug known to interfere with visual performance.

  4. Contact lens use during the active treatment portion of the trial.

  5. Any concurrent infectious/non-infectious conjunctivitis, keratitis or uveitis.

  6. Clinically significant corneal dystrophy

  7. History of chronic intraocular inflammation.

  8. History of retinal detachment.

  9. Pseudoexfoliation syndrome or any other condition that has the potential to weaken the zonules.

  10. Previous intraocular surgery.

  11. Previous corneal refractive surgery (i.e. LASIK, photorefractive keratectomy, radial keratotomy).

  12. Previous keratoplasty

  13. Severe dry eye

  14. Pupil abnormalities

  15. Anesthesia other than topical or peribulbar anesthesia (i.e. retrobulbar, general, etc).

  16. Any clinically significant, serious or severe medical or psychiatric condition that may increase the risk associated with study participation or may interfere with the interpretation of study results.

  17. Participation in (or current participation) any ophthalmic investigational drug or ophthalmic device trial within the previous 30 days prior to the start date of this trial.

Contacts and Locations


Site City State Country Postal Code
1 Center For Sight Venice Florida United States 34285
2 Helga Sandoval Mount Pleasant South Carolina United States 29464

Sponsors and Collaborators

  • Center For Sight
  • Science in Vision


None specified.

Study Documents (Full-Text)

None provided.

More Information


None provided.
Responsible Party:
Center For Sight Identifier:
Other Study ID Numbers:
  • CFS-22-001
First Posted:
Nov 3, 2022
Last Update Posted:
Nov 16, 2022
Last Verified:
Nov 1, 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD:
Studies a U.S. FDA-regulated Drug Product:
Studies a U.S. FDA-regulated Device Product:
Product Manufactured in and Exported from the U.S.:
Additional relevant MeSH terms:

Study Results

No Results Posted as of Nov 16, 2022