Prevelance of Keratoconus

September 15, 2019 updated by: Mariam hamdy, Assiut University

Prevelance of Keratoconus in Individuals Attending Refreactive Surgery Centers in Assiut

Keratoconus is a degenerative disease entity characterized by conical shape ectasia of the cornea. progressive conical deformation of the cornea leads to substantial astigmatism. Patients who are at an advanced stage of ectasia are often led to corneal transplant or other treatments, which essentially aim at correcting the refractive error and not in treating the ectasia. The top of the protruding cone that corneal configuration may be close to the visual axis or below and nasal of that. The disease manifests during adolescence, followed by slow progressive course, although it is possible to stabilize anytime. In 85% of cases both eyes are affected, but the severity of the attack can present significant asymmetry.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Often in keratoconus a positive family history is present. Prevelance of keratoconus varies greatly worldwide.The reported prevalence of keratoconus varies widely depending upon the geographic location, diagnostic criteria used, and the cohort of patients selected. Environmental factors may contribute to the wide variation in prevalence.

the Middle East have higher prevalence than locations with cooler climates and less sunshine

Study Type

Observational

Enrollment (Anticipated)

300

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

patients with keratoconus in people attending refractive surgery

Description

Inclusion Criteria:

  1. persons attending refractive surgery centers in Asssiut.
  2. patients found to have keratoconus are included , based on history , clinical examination and corneal topography

Exclusion criteria :

  1. patients not attending those refractive surgery centers.
  2. patients attending these centers but not diagnosed to be keratoconus .
  3. Pregnancy or breastfeeding

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
patients with keratoconus

patients with keratoconus attending refractive surgery centers in Assiut will be subjected to the following :-

  1. Full history and clinical evaluation.
  2. collection of individual data ( residency , occupation , special habbit , chronic illness )
  3. Analysis of results to assess prevelance of keratoconus and its distribution geographically in Assiut
Other: opthalmologic examination
opthalmologic examination : Refraction Best corrected visual acuity Intraocular pressure Slit lamp examination

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Prevalence of keratoconus in different areas in assiut
Time Frame: one year
Number of keratoconus cases detected areas in indivduals attending refractive surgery centers in Assiut
one year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Assiut University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

October 1, 2019

Primary Completion (Anticipated)

October 1, 2020

Study Completion (Anticipated)

October 1, 2021

Study Registration Dates

First Submitted

September 15, 2019

First Submitted That Met QC Criteria

September 15, 2019

First Posted (Actual)

September 17, 2019

Study Record Updates

Last Update Posted (Actual)

September 17, 2019

Last Update Submitted That Met QC Criteria

September 15, 2019

Last Verified

September 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • keratoconus in assiut

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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