Analysis of The Outcomes of Therapeutic Photorefractive Keratectomy Combined With Prophylactic Accelerated Cross-Linking (PRK-Plus), for Treatment of Thin Suspicious Cornea
NCT ID: NCT07277348
Last Updated: 2025-12-11
Study Results
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Basic Information
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NOT_YET_RECRUITING
NA
60 participants
INTERVENTIONAL
2026-02-01
2027-03-01
Brief Summary
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Detailed Description
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Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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PRK PLUS
PRK PLUS
PRK PLUS
therapeutic photorefractive keratectomy combined with prophylactic accelerated cross-linking
Follow up group
follow up with pentacam
No interventions assigned to this group
Interventions
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PRK PLUS
therapeutic photorefractive keratectomy combined with prophylactic accelerated cross-linking
Eligibility Criteria
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Inclusion Criteria
2. K mean more than 46 and/or K max more than 47.
3. Astigmatism cylinder \>1.5 D.
4. D value of Belin/Ambrósio Module \> 1.6
5. inferior- superior asymmetry or bow-tie pattern with skewed radial axes on tangential maps and abnormal changes on (BAD).
6. Asymmetry topography between 2 eyes, even if neither eye"s topographic pattern is in itself decidedly abnormal.
7. Any significant skewed radial axis with or without inferior steepening, or one diopter or more of inferior steepening in some areas but an I-S value of ,1.4,7.
8. young patients with against-the-rule astigmatic patterns.
9. a PTA value 40% if calculated.
10. Abnormal Topographic Patterns
11. K2 reading of corneal back surface less than \[-7\].
12. D Value of CSTP \> 2.5 in Belin/Ambrósio curve
13. We look at values within the central 5 mm circle; the map should be displayed in the BFTE float mode with an estimated area of 8 mm of diameter:
* Elevation values on the front surface values \> +12 μ
* Elevation values on the back surface values \>+15 μ.
* If there is any isolated island on either front or back surfaces (in the BFS float mode)
Exclusion Criteria
2. CCT less than 450 microns
18 Years
40 Years
ALL
No
Sponsors
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Fayoum University
OTHER
Responsible Party
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Omar Said
professor
Other Identifiers
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PRK PLUS in thin cornea
Identifier Type: -
Identifier Source: org_study_id
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