Correlation Between Postoperative Central Corneal Thickness and Endothelial Damage After Cataract Surgery

Completed

• Conditions: Phacoemulsification; Cataract

• Registration Number: NCT03972670
• Lead Sponsor: Centre Hospitalier Régional Metz-Thionville

Brief Summary

To study correlation between postoperative corneal edema and endothelial cell loss after cataract surgery by microcoaxial phacoemulsification.

Detailed Description

Cataract surgery facilitates improved visual acuity through extraction of an opacified lens, followed by intraocular lens implantation. An average adult cornea has 2000 to 2500 cells/mm2, a count that diminishes with age with a rate of attrition of approximately 0.3% to 0.5% per year. Long-term postoperative corneal transparency depends on the morphological stability and functional integrity of the corneal endothelium. It is well established that all surgical interventions that require entry into the anterior chamber result in some damage to the corneal endothelium.

Endothelial cell loss results in cell hypertrophy to maintain continuity, resulting in a change in endothelium cell density and morphology. Many studies have assessed the impact of various surgical techniques on endothelial damage and numerous studies have investigated the factors influencing endothelial cell loss after phacoemulsification. The goal of this study is to investigate the correlation of postoperative corneal edema with the reduction of endothelial corneal cell density after phacoemulsification.

Study Timeline

• Study Start: 2014-08-01
• Primary Completion: 2014-11-30
• Study Completion: 2018-01-01
• Status Verified: 2019-05
• Study First Submitted: 2019-05-31
• Study First Submitted QC: 2019-05-31
• Last Update Submitted: 2019-05-31
• Study First Posted: 2019-06-04
• Last Update Posted: 2019-06-04

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 85

Inclusion Criteria

• The presence of senile cataract with equivalent grades and a history of visual acuity regression

Exclusion Criteria

• Patient with total white cataract
• With history of ocular surgery
• With other eye diseases (corneal pathology, Fuchs dystrophy, uveitis and glaucoma) or systemic diseases (diabetic disorder and dementia)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Pachymetry	Day 1	Measurement of the thickness of the eye's cornea with a pachymeter

Secondary Outcome Measures

Name	Time	Method
Pachymetry after 1 month	Day 30	Measurement of the thickness of the eye's cornea with a pachymeter
Endothelial cell density after 1 month	Day 30	Endothelial cell density measurements with noncontact specular microscope
Endothelial cell density	Day 1	Endothelial cell density measurements with noncontact specular microscope