Pentacam Findings After Implantation of Intrastromal Corneal Rings in Keratoconus.
NCT ID: NCT04562064
Last Updated: 2022-08-25
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
44 participants
OBSERVATIONAL
2020-12-01
2022-11-30
Brief Summary
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Intrastromal corneal rings are polymethylmethacrylate devices successfully used for the management of keratoconus, pellucid marginal degeneration, post-LASIK ectasia and myopia. Intrastromal corneal rings implantation is safe and reversible procedure that does not affect the central corneal area, and hence, avoids interference with visual axis. The goal of intrastromal corneal rings implantation is to improve visual acuity by regulariztion of the anterior corneal surface.
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Detailed Description
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Conditions
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Study Design
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OTHER
CROSS_SECTIONAL
Study Groups
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keratoconus group
patients with keratoconus implanted with the Myoring 360 degree, KeraRing 355 degree, KeraRing one segment, KeraRing two segments ICRS .corneal tomography scans of the two corneal surfaces were obtained preoperatively and postoperatively with a rotating Scheimpflug imaging system .pentacam data that will be included
corneal tomography scans
corneal tomography scans of the two corneal surfaces were obtained preoperatively and postoperatively with a rotating Scheimpflug imaging system
Interventions
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corneal tomography scans
corneal tomography scans of the two corneal surfaces were obtained preoperatively and postoperatively with a rotating Scheimpflug imaging system
Eligibility Criteria
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Inclusion Criteria
* Contact lens intolerance.
* Thinnest location is more than 400 um.
* Maximum keratometry (Kmax) between 48 and 64 D.
* Clear cornea with no Vogt's striae.
Exclusion Criteria
* Grade IV with corneal scarring.
* Concurrent corneal disease in addition to KC.
* Autoimmune or systemic connective tissue diseases.
18 Years
ALL
No
Sponsors
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Assiut University
OTHER
Responsible Party
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Ahmed Mohamed Abbas
Principal investigator
Locations
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Assiut Faculty of Medicine
Asyut, , Egypt
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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PICR
Identifier Type: -
Identifier Source: org_study_id
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