Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 5:59 PM
Ignite Modification Date:
2025-12-24 @ 5:59 PM
NCT ID:
NCT06348368
Brief Summary:
Refractive and Corneal Topographic Characteristics in upper Egypt children with high cylinder: A cross sectional study
Detailed Description:
Astigmatism is defined as, a refractive condition in which refractive light fails to form a focus on the retina, it accounts for about 13% of refractive errors. It is frequent and correctable cause of visual impairment in children whether associated with spherical errors or not.
Astigmatism, is the refractive error of the highest clinical importance, being associated with reduced visual acuity with subsequent development of refractive amblyopia.
High cylinder in children belong to areas of hot and dry climates, makes exclusion of keratoconus is mandatory. Population in the African continent, the Mediterranean countries, Central and South America, and the Indian subcontinent usually have the habit of eye rubbing because of bothering symptoms of dryness, itching, atopy, allergy and vernal keratoconjunctivitis, which is the severe form of allergic conjunctivitis.
Eye rubbing causes thinning of keratocyte and increases the prevalence of keratoconus.
Keratoconus in children (diagnosed before the age of eighteenth) is less common but more aggressive than that of the adults, due to the dynamic nature of the young cornea. Few studies in the literature reported the prevalence and incidence of keratoconus in children.
Pentacam is an advanced instrument with a rotating Scheimpflug camera for scanning the anterior and posterior corneal surfaces. Its measurements of the corneal thickness and posterior elevation have been proved to be of high reproducibility and repeatability.
Study:
NCT06348368
Study Brief:
Protocol Section:
NCT06348368