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UNITY VCS Vitreoretinal Surgery

UNITY VCS Vitreoretinal Surgery: Randomized Comparative Clinical Trial

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07054281
Enrollment
0
Registered
2025-07-08
Start date
2026-01-31
Completion date
2027-02-28
Last updated
2025-12-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Epiretinal Membrane, Macular Hole, Proliferative Diabetic Retinopathy, Retained Lens Material in the Posterior Segment, Rhegmatogenous Retinal Detachment, Visually Significant Vitreous Floater, Vitreomacular Traction, Vitreous Hemorrhage

Keywords

Vitreoretinal Disease

Brief summary

This purpose of this study is to compare the safety and effectiveness of two eye surgery systems-UNITY VCS and CONSTELLATION-in treating adults with vitreoretinal diseases or disorders.

Detailed description

Subjects will attend a total of 6 scheduled visits for an individual of participation of approximately 3 months. One eye (study eye) will be treated with either UNITY VCS or CONSTELLATION, as randomized.

Interventions

PROCEDUREVitreoretinal ophthalmic surgery

Ophthalmic surgery performed in the posterior segment of the eye

DEVICEUNITY Vitreoretinal Cataract System (VCS)

UNITY VCS is a commercially approved surgical system that facilitates the management of fluid and gases, as well as removal, grasping, cutting, illumination, and coagulation of ocular materials during eye surgery. In this study, the UNITY VCS posterior segment functionalities will be used to perform posterior segment (i.e., vitreoretinal) ophthalmic surgery.

DEVICECONSTELLATION Vision System

CONSTELLATION is a commercially approved, multifunctional surgical instrument used during ophthalmic surgery to cut vitreous and tissues, emulsify the lens, illuminate the posterior segment of the eye, and apply diathermy to stop bleeding.

Sponsors

Alcon Research
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Requires surgery for a clinically documented posterior vitreoretinal medical condition. * Clear ocular media except for vitreous hemorrhage and floaters undergoing surgery. * Other protocol-specified inclusion criteria may apply. Key

Exclusion criteria

* Presence of clinically significant ocular or systemic diseases that may interfere with study outcomes or safety. * Diagnosis of glaucoma or suspected ocular hypertension. * Recent intraocular eye surgery, other than cataract surgery, resulting in retained lens materials in the posterior segment (within the past 3-months). * Other protocol-specified

Design outcomes

Primary

MeasureTime frameDescription
Percentage of vitreoretinal surgeries performed using 27-gauge consumablesDay 0 operativeThe surgeon will select the gauge size of the surgical consumables used for vitreoretinal surgery

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026