Aqueous Urea Concentration May be Related to Cataract Development

NCT ID: NCT03324295

Last Updated: 2018-01-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-01-31

Study Completion Date

2018-07-31

Brief Summary

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cataracts could be cured with eye drops. Some studies reported that in chronic renal failure, the occurrence of cataract is rare and the mechanism is unknown. The aim of this research is to describe correlation between urea concentration in the serum and aqueous humor and development of age related cataract.

Detailed Description

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The study was conducted in the departments of Ophthalmology and internal medicine,

Asyut University hospitals, Egypt. Three groups of subjects were included:

patients with age related cortical cataracts who are otherwise healthy (cases) and two control groups; first systemically healthy subjects with ocular problems other than cataract and a second control group of patients with impaired renal functions and are not on dialysis treatment and thus have elevated serum urea levels. Slit lamp examination was performed to evaluate crystalline lens for opacities. Measurement of serum urea was done for all study subjects. Aqueous humor urea concentration was done only for the group of patients who are planned to have intraocular surgery. For that purpose, 0.1 ml of aqueous humor will be aspirated at the start of routine intraocular surgery.

Conditions

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Cataract Cortical

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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cortical cataract

patients with age related cortical cataracts who are otherwise healthy

cortical cataract

Intervention Type DIAGNOSTIC_TEST

Blood urea

ocular problems

systemically healthy subjects with ocular problems other than cataract

cortical cataract

Intervention Type DIAGNOSTIC_TEST

Blood urea

impaired renal functions

patients with impaired renal functions and are not on dialysis

cortical cataract

Intervention Type DIAGNOSTIC_TEST

Blood urea

Interventions

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cortical cataract

Blood urea

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Senile Cortical cataract.

Exclusion Criteria

* Senile Nuclear cataract.
* Congenital cataract
* Traumatic cataract
Minimum Eligible Age

20 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Assiut University

OTHER

Sponsor Role lead

Responsible Party

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Hassan Lotfy Fahmy

Clinical Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hassan Fahmy, prof

Role: PRINCIPAL_INVESTIGATOR

Assiut University

Locations

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Hassan Lotfy

Asyut, , Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Mohamed Gamal, Dr.

Role: CONTACT

01004530716

Facility Contacts

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Hassan Lotfy, prof.

Role: primary

01020833002

Other Identifiers

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IRB000078

Identifier Type: -

Identifier Source: org_study_id

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