NCT04783909

Brief Summary

To evaluate the refractive outcomes of cataract surgery in PEX syndrome and determine which of the commonly used IOL formulas (SRK/T, Barrett Universal II and Hill-RBF) is the best in predicting postoperative refractive outcomes in PEX.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2016

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

October 1, 2016

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2017

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2018

Completed
2.8 years until next milestone

First Submitted

Initial submission to the registry

March 3, 2021

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 5, 2021

Completed
Last Updated

March 5, 2021

Status Verified

March 1, 2021

Enrollment Period

1.2 years

First QC Date

March 3, 2021

Last Update Submit

March 3, 2021

Conditions

Keywords

pseudoexfoliationphacoemulsification cataract surgeryIOL power calculation formulas

Outcome Measures

Primary Outcomes (1)

  • To compare refractive outcomes in PEX and control eyes.

    To measure MAE, MedAE, percentage of eyes within certain range of prediction error after cataract surgery

    3 months

Secondary Outcomes (1)

  • To determine whether any of IOL power prediction formulas is more precise for these challenging eyes.

    3 months

Study Arms (2)

PEX

42 eyes with PEX syndrome and coexisting cataract

Procedure: Phacoemulsification cataract surgery

Control

38 eyes with cataract only

Procedure: Phacoemulsification cataract surgery

Interventions

All surgeries were performed using Infinity (Alcon Laboratories, Inc.) under topical anaesthesia by one surgeon through 2.2 mm incision in the upper corneal limbus. The hydroimplantation of IOL to the capsular bag was performed in all cases.

ControlPEX

Eligibility Criteria

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

Patients above 18 yo with senile cataract with/without PEX without coexisting ocular pathologies

You may qualify if:

  • senile cataract with/without PEX

You may not qualify if:

  • corneal pathology
  • glaucoma,
  • corneal astigmatism greater than 2.0 diopters (D),
  • previous eye surgery or subjects with decreased vision due to other reasons than cataract (e.g., exudative age-related macular degeneration (AMD), proliferative diabetic retinopathy, inflammatory eye diseases),
  • intraoperative complications,
  • postoperative corrected distance visual acuity (CDVA) worse than 20/40,
  • axial length below 21 mm and above 25 mm,
  • dense cataracts or poor fixation requiring ultrasound biometry
  • eyes with manifest iridophacodonesis and those in which a capsular tension ring was inserted

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Wlaz A, Kustra A, Rozegnal-Madej A, Zarnowski T. Intraocular lens power calculations in eyes with pseudoexfoliation syndrome. Sci Rep. 2021 Sep 24;11(1):19071. doi: 10.1038/s41598-021-98675-5.

MeSH Terms

Conditions

Refractive ErrorsCataract

Condition Hierarchy (Ancestors)

Eye DiseasesLens Diseases

Study Officials

  • Tomasz Żarnowski, MD, PhD, Professor

    Medical University in Lublin

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 3, 2021

First Posted

March 5, 2021

Study Start

October 1, 2016

Primary Completion

December 31, 2017

Study Completion

May 30, 2018

Last Updated

March 5, 2021

Record last verified: 2021-03