NCT04712786

Brief Summary

We aimed o compare the refractive changes associated with pars plana vitrectomy with or without intraocular gas tamponade in pseudophakic eyes. This retrospective study included pseudophakic patients with Nd:YAG laser posterior capsulotomy who underwent 23G PPV between February 2015 and March 2019. Group 1 consisted of patients with regmatogenous RD who underwent PPV and 12% perflouropropane (C3F8) gas tamponade whereas Group 2 consisted of patients who underwent PPV for epiretinal membrane or vitreous hemorrhage (VH). No tamponade was used in Group 2. Minimum follow-up was 12 months.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
47

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2020

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2020

Completed
24 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 25, 2020

Completed
2 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 27, 2020

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

January 12, 2021

Completed
3 days until next milestone

First Posted

Study publicly available on registry

January 15, 2021

Completed
Last Updated

January 15, 2021

Status Verified

January 1, 2021

Enrollment Period

24 days

First QC Date

January 12, 2021

Last Update Submit

January 14, 2021

Conditions

Keywords

Myopic shiftGas tamponadePars plana vitrectomy

Outcome Measures

Primary Outcomes (1)

  • The rate of spherical and cylindrical refractive changes

    Changes in spherical and cylindrical refractive error 12 months after pars plana vitrectomy

    12 months

Study Arms (1)

Group

27 patients, Group 1 consisted of patients with pseudophakic rhegmatogoneous retinal detachment who underwent pars plana vitrectomy and 12% perflouropropane (C3F8) gas tamponade and 20 patients Group 2 consisted of patients with epiretinal membrane or vitreous hemorrhage who underwent PPV without any tamponade

Other: pars plana vitrectomy

Interventions

23 gauge pars plana vitrectomy was performed for retinal detachment, vitreous hemorrhage or epiretinal membrane

Group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Pseudophakic patients treated with neodymium:yttrium-aluminum-garnet Nd: YAG laser and subsequently underwent 23 gauge pars plana vitrectomy for vitreous hemorrhage, epiretinal membrane, or rhegmatogenous retinal detachment.

You may qualify if:

  • Patients aged ≥ 18 years
  • Pseudophakic patients who underwent pars plana vitrectomy

You may not qualify if:

  • Patients aged 18 years \>
  • Patients with a spherical refractive error \> ±6 D
  • Patients with a cylindrical refractive error \> ±3 D

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Retina Eye Hospital

Bursa, 16130, Turkey (Türkiye)

Location

Related Publications (2)

  • Hamoudi H, Kofod M, La Cour M. Refractive change after vitrectomy for epiretinal membrane in pseudophakic eyes. Acta Ophthalmol. 2013 Aug;91(5):434-6. doi: 10.1111/j.1755-3768.2012.02574.x. Epub 2012 Sep 23.

    PMID: 22998208BACKGROUND
  • Byrne S, Ng J, Hildreth A, Danjoux JP, Steel DH. Refractive change following pseudophakic vitrectomy. BMC Ophthalmol. 2008 Oct 13;8:19. doi: 10.1186/1471-2415-8-19.

MeSH Terms

Conditions

Retinal DetachmentRefractive ErrorsVitreous HemorrhageEpiretinal Membrane

Condition Hierarchy (Ancestors)

Retinal DiseasesEye DiseasesEye HemorrhageHemorrhagePathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Sami Yılmaz, MD

    Bursa Retina Eye Hospital

    PRINCIPAL INVESTIGATOR
  • Remzi Avcı, Professor

    Bursa Retina Eye Hospital

    STUDY DIRECTOR
  • Aysegul Mavi Yıldız, MD

    Bursa Retina Eye Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Medical doctor, ophthalmology specialist

Study Record Dates

First Submitted

January 12, 2021

First Posted

January 15, 2021

Study Start

December 1, 2020

Primary Completion

December 25, 2020

Study Completion

December 27, 2020

Last Updated

January 15, 2021

Record last verified: 2021-01

Locations