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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UNKNOWN
NA
100 participants
INTERVENTIONAL
2019-10-01
2021-10-01
Brief Summary
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Detailed Description
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In the last few years, it has been shown that in healthy individuals the posterior corneal surface has not only a different amount of astigmatism but also a different alignment of the steep meridian.
The aim of this research is to compare the amount and axis alignment of anterior and posterior corneal astigmatism in keratoconus with a healthy controlled group .
Conditions
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Study Design
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RANDOMIZED
PARALLEL
SCREENING
NONE
Study Groups
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Patients with keratoconus
Pentacam will be used for comparison between astigmatism in patients with keratoconus and normal people at the same age and sex.
Pentacam
Pentacam will be used to measure the magnitude and axis orientation of anterior and posterior corneal astigmatism.
Normal people at the same age and sex
Pentacam will be used for comparison between astigmatism in patients with keratoconus and normal people at the same age and sex.
Pentacam
Pentacam will be used to measure the magnitude and axis orientation of anterior and posterior corneal astigmatism.
Interventions
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Pentacam
Pentacam will be used to measure the magnitude and axis orientation of anterior and posterior corneal astigmatism.
Eligibility Criteria
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Inclusion Criteria
Specific diagnostic signs is asymmetric refractive errors with high progressive or irregular astigmatism, and elevated keratometry values, scissoring of the red reflex, Vogt striae, Fleischer rings, inferior or central steepening on topography with abnormal localized steepening .
Exclusion Criteria
* Corneal scarring.
* Any ectatic conditions that were not explicitly keratoconus such as keratoglobus and pellucid marginal degeneration .
* Previous ocular surgery.
ALL
Yes
Sponsors
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Assiut University
OTHER
Responsible Party
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Doaa Mamdouh
Principal investigator
References
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Rabinowitz YS. Keratoconus. Surv Ophthalmol. 1998 Jan-Feb;42(4):297-319. doi: 10.1016/s0039-6257(97)00119-7.
Other Identifiers
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Keratoconus
Identifier Type: -
Identifier Source: org_study_id
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