Limbal Astigmatic Keratotomy to Correct High Degrees of Astigmatism After Phacoemulsification

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

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

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.

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.