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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05156138
Other study ID # AssiutUAA
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date January 24, 2022
Est. completion date September 24, 2022

Study information

Verified date December 2021
Source Assiut University
Contact Ali Alhussaini, mbbch
Phone 01124131377
Email ali_alhossaini@yahoo.com
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The study aims to compare the endothelial cell count in patients with pseudoexfoliation syndrome to the the endothelial cell count in normal patients above the age of 50.


Description:

Pseudoexfoliation syndrome is a systemic, age related condition, characterized by the deposition of a basement membrane like material within the anterior segment of the eye, most notably on the anterior lens capsule, the iris, the anterior chamber angle, and the anterior vitreous. Both genetic and environmental factors may play a role in its pathogenesis . This condition may present unilaterally or bilaterally and is known to be a major risk factor for secondary open angle glaucoma. Pseudoexfoliation glaucoma is seen in up to 50% of eyes with pseudoexfoliation. In contrast to primary open angel glaucoma, this disease runs a more aggressive clinical course with high intraocular pressure at onset, fast rate of progression, poor the response to medical therapy is, as well as increased need for surgical intervention. The prevalence of pseudoexfoliation syndrome demonstrates considerable geographic, ethnic and racial variation, ranging from low rates (< 6% in patients older than 70 years) to higher rates (more than 15%) in other regions. In Egypt, the reported incidence of pseudo-exfoliation syndrome in the population older than 40 years of age is 4.14%. Several studies have shown the influence of pseudoexfoliation syndrome on the corneal endothelium cell density (ECD). Multiple studies showed decreased ECDs of patients with pseudoexfoliation syndrome compared to control patients. However, since the pseudoexfoliation syndrome varies greatly between different populations, in terms of prevalence and progression, it is valuable to study the potential corneal endothelial cell changes in an Egyptian population. Factors that can change corneal density include Age, race, history of intraocular surgery, use of contact lenses and endothelial dystrophies. That's why in this study, history of intraocular surgery, corneal endothelial dystrophies and contact lens use are among exclusion criteria and includes patients 50 years in age or older.A low endothelial cell count may be a risk in cataract surgery if needed.


Recruitment information / eligibility

Status Recruiting
Enrollment 50
Est. completion date September 24, 2022
Est. primary completion date July 24, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 50 Years and older
Eligibility Inclusion Criteria: - Pesudoexfoliation Egyptian patients and controls groups must be at least 50 years old and matched from age. Controls will be selected from the same outpatient clinic. Exclusion Criteria: - Patients with history of previous intraocular surgeries, wearing contact lens and endothelial dystrophies.

Study Design


Related Conditions & MeSH terms


Intervention

Other:
no interventions as it is a case control observational study
no interventions as it is a case control observational study

Locations

Country Name City State
Egypt Assuit university Asyut

Sponsors (1)

Lead Sponsor Collaborator
Assiut University

Country where clinical trial is conducted

Egypt, 

Outcome

Type Measure Description Time frame Safety issue
Primary to determine the possible association between pseudoexfoliation syndrome and corneal endothelial cell changes by measuring: Endothelial cell density by specular microscopy to be categorized qualitatively into one of two groups (normal/abnormal cell count):
A. A group with normal cell count (2100-3200 cells/mm2) B. A group with low or abnormal cell count (less than the previous range).
Pseudoexfoliation presence: to qualitatively categorize patients into one of two groups (pseudoexfoliation/ No pseudoexfoliation)
one year
Secondary Endothelial cell morphology: to qualitatively categorize the patient subjectively into normal and abnormal shape using specular microscopy. one year
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