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

Results pending

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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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-02-01

Study Completion Date

2027-03-01

Brief Summary

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analyze the outcomes of therapeutic photorefractive keratectomy combined with prophylactic accelerated cross-linking (PRK-Plus), for treatment of thin suspicious cornea

Detailed Description

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Conditions

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Thin Suspicious Cornea

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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PRK PLUS

PRK PLUS

Group Type EXPERIMENTAL

PRK PLUS

Intervention Type PROCEDURE

therapeutic photorefractive keratectomy combined with prophylactic accelerated cross-linking

Follow up group

follow up with pentacam

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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PRK PLUS

therapeutic photorefractive keratectomy combined with prophylactic accelerated cross-linking

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. CCT less than 490 microns
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

1. Eyes diagnosed with KC.
2. CCT less than 450 microns
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Fayoum University

OTHER

Sponsor Role lead

Responsible Party

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Omar Said

professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Other Identifiers

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PRK PLUS in thin cornea

Identifier Type: -

Identifier Source: org_study_id

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