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CompletedNCT03224013Updated Jul 21, 2017

Hyperopic LASIK With Crosslinking Versus Standard LASIK

An interventional study of LASIK in Hyperopia, sponsored by Minia University. Completed. Open to participants aged 18 Years to 61 Years. Per ClinicalTrials.gov, last updated 2017-07-21.

Sponsored by Minia University · Not applicable, Interventional, and Other

From the registry’s dates

  • Registered 1 year 5 months after the study started (first participant enrolled Jan 2016, registered Jul 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
25
Allocation
Non-randomized
Ages
18 Years to 61 Years
Sex
All
01

Study summary

Analysis corneal and refractive stability of hyperopic laser-assisted in situ keratomileusis (LASIK) with and without concurrent prophylactic high-fluence cross-linking (CXL).

Read the detailed description

Interventional prospective consecutive comparative case control series of cases; 50 eyes of 25 patients with mean age 35.7 ± 12.4 (Range 18-61years) with hyperopia or hyperopic astigmatism underwent customized LASIK with concurrent prophylactic high-fluence cross-linking in right eye (group 1) and customized LASIK only in left eye (group 2). Cases with hyperopia +1 diopter to +6 diopters or hyperopic astigmatism up to 4 diopters were included in the study. Patients with previous intraocular or corneal surgery, active corneal disease were excluded from the study.

Main outcome measures were uncorrected visual acuity (UCVA), manifest refractive spherical equivalent (MRSE), cycloplegic refractive spherical equivalent (CRSE), keratometric measurements and spherical aberrations at 4 mm and maximum pupil and their evolution along 6 months postoperatively.

02

Conditions studied

  • Hyperopia

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03

In context

Hyperopia

140 studies on the registry are indexed under Hyperopia; 18 are open to participants now.

This study's enrollment of 25 is below the median of 60 across 112 interventional studies indexed under Hyperopia.

Browse Hyperopia studies →

Lead sponsor

Minia University is the lead sponsor of 356 studies on the registry; 115 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 61 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Cases with hyperopia +1diopter to +6 diopters or hyperopic astigmatism up to 4 diopters

Exclusion criteria

Exclusion Criteria:

  • Patients with previous intraocular or corneal surgery, active corneal disease
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
25 participants (actual)

Study arms

  • Active comparator
    Hyperopic LASIK with crosslinking

    group 1:hyperopic customized LASIK with concurrent prophylactic high-fluence cross-linking

    Procedure: LASIK

  • Active comparator
    Hyperopic LASIK only

    group 2: hyperopic customized LASIK only

    Procedure: LASIK

Interventions

  • ProcedureLASIK

    LASIK with concurrent prophylactic high fluence crosslinking in right eye ( After the excimer laser ablation, and with the flap folded onto itself and protected with a dry sponge, one drop of Vibex Rapid™ , consisting of 0.10% saline-diluted riboflavin (a very slightly hypotonic solution, mixed with hydroxypropyl methylcellulose, a dextran substitute), was placed on the exposed stromal bed afforded by the open LASIK flap and carefully spread over the bed area with an irrigating cannula for 60 seconds and LASIK only in left eye

06

What researchers measure

Primary outcomes

  1. assessment of changes in refractive spherical equivalent

    assessment of changes in manifest refraction by autorefractometer and then calculate spherical equivalent

    Time frame: preoperative and 3 months and 6 months postoperative

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 21, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03224013
Lead sponsor
Minia University
Responsible party
Ahemd Abdelghany (Lecturer of Ophthalmology.Faculty of Medicine, Minia University) — Principal investigator
First posted
Jul 21, 2017
Start date
Jan 18, 2016
Primary completion
May 12, 2017
Completion
Jul 12, 2017
Last update
Jul 21, 2017

Study contacts

Jorge L Alio, MD
study director · MD, Phd, FEBO

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2017. You cannot join it, but the record below documents what was studied.

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