Rotational Stability of Diffractive Multifocal Toric IOL
Narrative Responses:
Purpose
To evaluate rotational stability of diffractive multifocal toric intraocular lens (MFT IOL) implanted in patients with cataract and corneal astigmatism.
Methods
Prospective, clinical and interventional study of patients with cataract and corneal astigmatism between1.10 diopter (D) and 2.50 D, who underwent phacoemulsification with implantation of Acrysof IQ Restor toric IOL. Six months postoperative follow up; the rotational stability of the implanted IOL was evaluated. The location of the axes and the intraocular lens were determined using the calculator of the company website, before surgery. The postoperative position of the lens was determined with specially designed measuring angles through the slit lamp. Data were expressed as mean, standard deviation (SD), absolute numbers and percentages.
Results
83 eyes for 66 patients were evaluated. The 91.6% (76 patients) had a rotation between 0 and 4 degrees, 7.2% (6 patients) from 5 to 9 degrees and 1.2% (1 patient) of 10 degrees. The average turnover was 3.00 ± 1.40 (SD) degrees. There was no tendency to rotate clockwise or counterclockwise. No lens was explanted.
Conclusion
Implantation of the diffractive multifocal toric IOL in patients with cataract and corneal astigmatism have rotational stability when is implanted in the capsular bag.