Prevelance of Keratoconus

Assiut University

Status: Unknown

Conditions: Keratoconus

Treatments: Other: opthalmologic examination

Study type: Observational

Funder types: Other

Identifiers

NCT04092426

keratoconus in assiut

Details and patient eligibility

About

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.

Full 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

Enrollment: 300 estimated patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion and exclusion 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

Trial design

300 participants in 1 patient group

patients with keratoconus

Description:

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

Treatment:

Other: opthalmologic examination