NCT06133660

Brief Summary

To observe the effects of vitreous cavity Balanced salt solution (BSS) tamponade on the state of the lens and related parameters of the eye, and whether the changes of the above parameters are correlated with age, gender, diabetes or not, etc., so as to provide references for the diagnosis and treatment of related diseases and scientific research.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
21

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Oct 2020

Typical duration 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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 30, 2020

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2022

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2023

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

November 10, 2023

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 15, 2023

Completed
Last Updated

November 15, 2023

Status Verified

November 1, 2023

Enrollment Period

1.9 years

First QC Date

November 10, 2023

Last Update Submit

November 10, 2023

Conditions

Keywords

aqueous tamponadecataractlens thicknessaxial lengthpars plana vitrectomy

Outcome Measures

Primary Outcomes (2)

  • degree of lens opacity

    1 year

  • lens thickness

    1 year

Secondary Outcomes (2)

  • anterior chamber depth

    1 year

  • axial length

    1 year

Study Arms (2)

PPV(pars plana vitrectomy) group

Procedure: pars plana vitrectomy

Silicone oil removal group

Procedure: pars plana vitrectomy

Interventions

pars plana vitrectomy and Silicone oil removal to distinguish subjects

Also known as: Silicone oil removal
PPV(pars plana vitrectomy) groupSilicone oil removal group

Eligibility Criteria

Age16 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who undergoing vitrectomy for diabetic retinopathy, epiretinal membranes, macular hole, retinal detachment, and other diseases, or underwent vitreous silicone oil tamponade and vitreous silicone oil removal due to various causes

You may qualify if:

  • ① Patients undergoing vitrectomy for diabetic retinopathy, epiretinal membranes, macular hole, retinal detachment, and other diseases;
  • Patients who underwent vitreous silicone oil tamponade and vitreous silicone oil removal due to various causes; ③ Intraoperative BSS was used for fill the vitreous cavity; ④ Before treatment, inform the patient that the clinical data may be used in clinical research, and the patient and his family are informed and sign the informed consent.

You may not qualify if:

  • ① The operation eye was intraocular lens or cataract extraction during operation; ② Suspensory ligament relaxation or rupture, ciliary body detachment or transaction, lens dislocation, endophthalmitis, traumatic cataract;
  • intraoperative lens injury; ④ patients who refused to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Second Hospital of Jilin University

Changchun, China

Location

MeSH Terms

Conditions

Cataract

Condition Hierarchy (Ancestors)

Lens DiseasesEye Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
M.D.

Study Record Dates

First Submitted

November 10, 2023

First Posted

November 15, 2023

Study Start

October 30, 2020

Primary Completion

October 1, 2022

Study Completion

March 1, 2023

Last Updated

November 15, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will share

Locations