Effectiveness and Safety of Limbal Relaxing Incisions for Correcting Post Phacoemulsification High Astigmatism

ConditionsAstigmatism Phacoemulsification

Trial statusNot yet recruiting

Trial phasePhase 1

Trial typeInterventional

Biological sexAll

Age18+

SponsorAssiut University

About this trial

To compare the effect of Limbal relaxing incisions (LRIs) plus spectacle correction versus spectacle correction alone on subjective and objective improvement in visual function for correcting post phacoemulsification high astigmatism .

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Conventional phacoemulsification was done at least one month earlier.

Clear cornea with corneal astigmatism more than 3.0 D.

Disqualifiers

History of corneal surgeries (e.g., keratoplasty, refractive surgery, and corneal wound repair).

Ocular trauma.

Other intraocular surgery.

Patient with corneal opacities.

Trial design

Design model

Single group

Treatments tested in this trial

Limbal relaxing incisions
Procedure/Surgery
A fixed depth diamond-guarded knife (Gemcision LRI 600 Microns Blade, Katalyst Surgical, chesterfield, MO, USA) will be used to create a paired circumferential corneal incision, following the limbal curvature, 1-1.5mm anterior to the limbus centered on the steep corneal meridian. The incision arc length will be ninety degree according to the Nichamin Age and Pachymetry Adjusted (NAPA) nomogram.

Treatment groups

30 Participants

are divided into 1 treatment group

Group A: patients with post phacoemulsification high astigmatism .Experimental treatment 1 intervention

Trial outcomes

Primary outcomes

visual acuity improvement

assessment the improvement in visual acuity ,which will be measured by Landolt Cs chart with decimal notation.

Time frame

3 months

contrast sensitivity improvement

Assessment the improvement in contrast sensitivity using Pelli-Robson contrast sensitivity test .

Time frame

3 months

Locations

This trial has no locations.

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Assiut University

Lead sponsor

Source ClinicalTrials.gov

This trial is not recruiting at the moment. You can still explore other options: