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CompletedNCT05367193Updated Jun 17, 2024

3D Visualization System for Vitreoretinal Diseases in Highly Myopic Eyes

An interventional study of pars plana vitrectomy and NGENUITY® 3D Visualization System (Alcon, TX, USA) in Patients With Highly Myopic Eyes, sponsored by National Taiwan University Hospital. Completed at 1 site in Taiwan. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2024-06-17.

Sponsored by National Taiwan University Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Study summary

To investigate the surgical outcomes and intraoperative parameters evaluation of 3D visualization system for vitreoretinal diseases in highly myopic eyes

Read the detailed description

The investigators aimed to compare the safety and efficacy of NGENUITY® 3D Visualization System (Alcon, TX, USA) in vitreoretinal surgery of highly myopic patients with standard binocular microscope pars plana vitrectomy of highly myopic patients. This is a randomized controlled study and will enroll highly myopic patients who had axial length more than 26 mm and needed vitreoretinal surgery. The enrolled patients will be randomized into "NGENUITY® 3D Visualization System (Alcon, TX, USA) group"(trial group) and "standard binocular microscope pars plana vitrectomy group"(controlled group). The investigators will compare the number of injections of dye (indocyanine green (ICG) or brilliant blue G (BBG)), total surgical time, total peeling time, exposure time of dye, power of endoilluminator, the rate of probe bending, surgical time, postoperative intraocular pressure (IOP), the rate of wound leakage, hypotony, subconjunctival hemorrhage, vitreous hemorrhage, retinal hemorrhage, and endophthalmitis, best-corrected visual acuity (BCVA), structural changes shown on OCT and so on between the two groups.

02

Conditions studied

  • Patients With Highly Myopic Eyes

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Keywords

  • vitreoretinal surgery
  • high myopia
  • Pars plana vitrectomy
  • 3D visualization system
03

In context

Myopia

984 studies on the registry are indexed under Myopia; 210 are open to participants now.

This study's enrollment of 40 is below the median of 80 across 783 interventional studies indexed under Myopia.

Browse Myopia studies →

Lead sponsor

National Taiwan University Hospital is the lead sponsor of 2,563 studies on the registry; 569 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Highly myopic patients (axial length ≥ 26mm, no upper limit)
  2. Patient with vitreoretinal pathology that require vitrectomy who had not received previous ICG or BBG-assisted membrane peeling
  3. Patient aged ≥ 20 years

Exclusion criteria

Exclusion criteria:

  1. Patient who had previous ICG or BBG-assisted membrane peeling
  2. Patient who received combined vitrectomy and trabeculectomy
  3. Patient with endophthalmitis or intraocular foreign body
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
40 participants (actual)

Study arms

  • Experimental
    pars plana vitrectomy performed using NGENUITY® 3D Visualization System (Alcon, TX, USA)

    NGENUITY® 3D Visualization System (Alcon, TX, USA)

    Procedure: pars plana vitrectomy · Device: NGENUITY® 3D Visualization System (Alcon, TX, USA)

  • Active comparator
    standard binocular microscope pars plana vitrectomy

    standard binocular microscope pars plana vitrectomy

    Procedure: pars plana vitrectomy

Interventions

  • Procedurepars plana vitrectomy

    pars plana vitrectomy for vitreoretinal disease in highly myopic eyes

  • DeviceNGENUITY® 3D Visualization System (Alcon, TX, USA)

    Injection of ICG to stain internal limiting membrane

06

What researchers measure

Primary outcomes

  1. Number of injections of ICG

    Fixed and minimal concentration: ICG (25mg/vial) is diluted to 0.05% Fixed time: Each injection is 15 sec Interval time for washout: consistent as 10 sec

    Time frame: operation day

Secondary outcomes

  1. Total surgical time

    Total surgical time

    Time frame: Intraoperative

  2. ILM peeling time

    ILM peeling time

    Time frame: operation day

  3. ICG exposure time

    ICG exposure time

    Time frame: operation day

07

Study locations

1 site
  • National Taiwan University Hospital
    Taipei, 100, Taiwan
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References and documents

Individual participant data

Plan to share: No — Data may be provided under reasonable request.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 17, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05367193
Lead sponsor
National Taiwan University Hospital
Collaborators
Alcon Research
Responsible party
Sponsor
First posted
May 10, 2022
Start date
Oct 7, 2022
Primary completion
Mar 16, 2023
Completion
Mar 16, 2023
Last update
Jun 17, 2024

Study contacts

Ho Tzyy-Chang, MD
principal investigator · National Taiwan University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2021. You cannot join it, but the record below documents what was studied.

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