Prevelance of Keratoconus

Brief Title

Prevelance of Keratoconus

Official Title

Prevelance of Keratoconus in Individuals Attending Refreactive Surgery Centers in Assiut

Brief Summary

      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.

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

Primary Outcome

Prevalence of keratoconus in different areas in assiut

Condition

Keratoconus

Intervention

opthalmologic examination

Study Arms / Comparison Groups

 patients with keratoconus

Description:  patients with keratoconus attending refractive surgery centers in Assiut will be subjected to the following :-
Full history and clinical evaluation.
collection of individual data ( residency , occupation , special habbit , chronic illness )
Analysis of results to assess prevelance of keratoconus and its distribution geographically in Assiut

Publications

* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information

Recruitment Status

Other

Estimated Enrollment

Start Date

October 1, 2019

Completion Date

October 1, 2021

Primary Completion Date

October 1, 2020

Eligibility Criteria

        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

Gender

All

Ages

N/A - N/A

Contacts

, ,

Administrative Informations

NCT ID

NCT04092426

Organization ID

keratoconus in assiut

Responsible Party

Principal Investigator

Study Sponsor

Assiut University

Study Sponsor

, ,

Verification Date

September 2019