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OpenTrials
Completed

NCT Number: NCT06179355

Limbal Astigmatic Keratotomy to Correct High Degrees of Astigmatism After Phacoemulsification

Compare manually performed Astigmatic Keratotomy to femtosecond laser astigmatic keratotomy to manage corneal astigmatism more than three diopters after phacoemulsification.

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Key information

Conditions

Astigmatism Eye Diseases Refractive Errors

Age range

21 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Faculty of Medicine, Assiut University

Asyut, Egypt

About this study

create circumferential corneal incisions, following the limbal curvature, at 1-1.5 mm anterior to the limbus, manually and by using femtosecond laser to correct corneal astigmatism more than three diopters after phacoemulsification.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Possibility to have informed consent and attendance of all study visits.
  • Patients who have undergone conventional phacoemulsification at least one month ago.
  • Clear cornea.
  • Astigmatism more than 0.5 diopters.

Exclusion criteria

  • Corneal opacity.
  • History of corneal surgery.
  • Thin cornea.
  • Astigmatism equal to or less than 0.5 diopters.

Treatment and study plan

manual astigmatic keratotomy

Procedure

manual astigmatic keratotomy using a diamond knife

femtosecond laser astigmatic keratotomy

Procedure

astigmatic keratotomy using femtosecond lase

Primary outcomes

  1. astigmatism (Keratometric reading)

    Time frame: three month

    diopters of the astigmatism after the procedure measured by Pentacam

Sponsors and collaborators

Lead sponsor

Assiut University

Other

Registry information

Official study title

Comparison Between Manual Limbal Astigmatic Keratotomy and Femtosecond Laser-guided Limbal Astigmatic Keratotomy for Correction of Astigmatism More Than Three Diopters After Phacoemulsification

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Dec 21, 2023
Registry last updated
Mar 5, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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