This Clinical Trial Compares Two Phacoemulsification Systems Used in a Bilateral Cataract Surgery Subjects in Order to Study CDE and Ultrasound Time During Cataract Removal
CDE
Cumulative Dissipated Energy (CDE) and Total Phacoemulsification Energy (Joules) of Unity VCS/CS With 4D Phaco Compared to Centurion System With OZil
2 other identifiers
interventional
30
1 country
1
Brief Summary
This clinical trial compares two phacoemulsification systems used in a bilateral cataract surgery subjects, in order to study CDE and Ultrasound time during cataract removal
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Feb 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 13, 2026
CompletedFirst Submitted
Initial submission to the registry
March 3, 2026
CompletedFirst Posted
Study publicly available on registry
March 13, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 13, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 13, 2027
March 18, 2026
March 1, 2026
1 year
March 3, 2026
March 16, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Cumulative Dissipated Energy
CDE is a measure of the total ultrasound energy delivered into the eye during phacoemulsification cataract surgery
Intraoperative
Secondary Outcomes (1)
Total Ultrasound Time
Intraoperative
Other Outcomes (6)
Total Aspiration Time
Intraoperative
Central Corneal Thickness
post op day 1
Anterior chamber inflammation
Post op day 1 and Post op day 7
- +3 more other outcomes
Study Arms (2)
Unity VCS/CS with 4D Phaco Handpiece
ACTIVE COMPARATORPatients are generally randomized to undergo surgery with Unity VCS/CS system with 4D phacoemulsification on one of there eyes
Centurion vision system with OZil Handpiece
ACTIVE COMPARATORPatients are generally randomized to undergo surgery with Centurion system with OZil technology phacoemulsification on one of there eyes
Interventions
First arm: Phacoemulsification using UNITY VCS/CS system with UNITY 4D phaco handpiece
Eligibility Criteria
You may qualify if:
- Healthy patients 18 years or older undergoing uncomplicated sequential bilateral cataract surgery with phacoemulsification and IOL implantation
- Expected to undergo sequential cataract surgery in both eyes
- Must have bilateral nuclear sclerosis cataracts classified using LOCS III as grade 3 or above (see appendix III)
- Both eyes will be operated on by the same surgeon
- Have the ability to consent for study and procedure planned
You may not qualify if:
- Patients under 18 years of age.
- Complex cataract cases involving zonulopathy (e.g., pseudoexfoliation syndrome, traumatic zonular weakness) that may require use of zonular support devices during surgery (e.g. capsular hooks) and/or implantation of capsular tension rings or other zonular support devices, and in the investigator's judgment, may interfere with the surgical procedure or study outcome measures.
- Require mechanical pupil expanding devices (e.g., iris hooks, Malyugin rings, etc.)
- Undergoing femtosecond laser-assisted lens fragmentation.
- Surgical complications, in the opinion of the investigator, occurring either intraoperatively or postoperatively (including capsule tears, iris trauma, or decentered intraocular lens) and not attributable to the study device or study design.
- Prior ocular surgery (including intraocular, oculoplastic, corneal or refractive surgical procedure) performed within the last 3 months or at any time that in the investigator's clinical judgment, if it interferes with the outcome measures of this study.
- Presence of endothelial cell dystrophies and/or corneal comorbidities.
- History of intraocular inflammation (e.g., uveitis, iritis).
- History of retinal edema or presence of a clinically significant epiretinal membrane that, in the investigator's clinical judgment, may interfere with the outcome measures of this study.
- History of retinal surgery (e.g.retinal detachment repair, membrane peel) involving vitrectomy.
- Dense brunescent cataract that in the investigator's clinical judgment, may interfere with the outcome measures of this study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Nicole Fram M.D.lead
Study Sites (1)
Advanced Vision Care
Los Angeles, California, 90067, United States
Related Publications (1)
Erratum: Comparison of cumulative dissipated energy between the Infiniti and Centurion phacoemulsification systems [Corrigendum]. Clin Ophthalmol. 2015 Aug 19;9:1475. doi: 10.2147/OPTH.S93330. eCollection 2015.
PMID: 26316688BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nicole R Fram, M.D.
Advanced Vision Care
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Principal investigator
Study Record Dates
First Submitted
March 3, 2026
First Posted
March 13, 2026
Study Start
February 13, 2026
Primary Completion (Estimated)
February 13, 2027
Study Completion (Estimated)
February 13, 2027
Last Updated
March 18, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share
In part due to : risk of Re-identification and Informed Consent Limitations.