Refractive and Corneal Topographic Characteristics in Upper Egypt Children With High Cylinder
NCT ID: NCT06348368
Last Updated: 2024-04-09
Study Results
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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COMPLETED
4000 participants
OBSERVATIONAL
2023-01-01
2024-02-01
Brief Summary
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Detailed Description
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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.
Conditions
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Study Design
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CASE_CONTROL
RETROSPECTIVE
Study Groups
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Group 1 (control group)
Children with normal Pentacam and with no refractive errors
Pentacam and autorefractometry
Pentacam to detect corneal topographic changes. Auto-refractometry to assess refraction condition of the children
Group 2 (children with high cylinder and no corneal topographic abnormalities)
Children with high cylinder without corneal topographic ectasia.
Pentacam and autorefractometry
Pentacam to detect corneal topographic changes. Auto-refractometry to assess refraction condition of the children
Group 3 (Children with high cylinder and corneal ectatic changes).
Children with high cylinder and corneal ectatic changes
Pentacam and autorefractometry
Pentacam to detect corneal topographic changes. Auto-refractometry to assess refraction condition of the children
Interventions
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Pentacam and autorefractometry
Pentacam to detect corneal topographic changes. Auto-refractometry to assess refraction condition of the children
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
7 Years
18 Years
ALL
No
Sponsors
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Sohag University
OTHER
Responsible Party
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Elshimaa A.Mateen
Clinical professor
Principal Investigators
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Elshimaa A.Mateen
Role: PRINCIPAL_INVESTIGATOR
Assistant professor of ophthalmology, Sohag University
Locations
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Elshimaa A.Mateen
Sohag, , Egypt
Countries
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Other Identifiers
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Soh-Med-23-01-29
Identifier Type: -
Identifier Source: org_study_id
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