Astigmatism management in cataract surgery with the AcrySof toric intraocular lens
Accepted 20 May 2008.
Purpose
To present clinical data from a single-center prospective clinical trial of the AcrySof toric intraocular lens (IOL).
Setting
Academic Hospital Maastricht, Maastricht, The Netherlands.
Methods
Fifty-three eyes (43 patients) had implantation of an AcrySof toric IOL. Three toric models were evaluated in cylinder powers of 1.50 diopters (D) (SN60T3; T3 group, n = 16), 2.25 D (SN60T4; T4 group, n = 14), and 3.00 D (SN60T5; T5 group, n = 23) at the IOL plane. The T5 group was subdivided into eyes that could be fully corrected (T5a, n = 13) and eyes that could be partially corrected (T5b, n = 10).
Results
Four months postoperatively, the mean uncorrected visual acuity (UCVA) was 0.77 ± 0.23 in the T3 group, 0.93 ± 0.23 in the T4 group, 0.82 ± 0.15 in the T5a group, and 0.47 ± 0.13 in the T5b group. More than 90% of the combined eyes in the T3, T4, and T5a groups achieved a UCVA of 20/40 or better, and almost 80% achieved a UCVA of 20/25 or better. Residual refractive astigmatism of less than 0.75 D was achieved in 74% of eyes and of less than 1.00 D in 91%. The mean IOL misalignment was 2.5 ± 2.1 degrees in the T3 group, 3.5 ± 2.3 degrees in the T4 group, and 4.1 ± 3.5 degrees in the T5 group.
Conclusion
Implantation of the AcrySof toric IOL proved to be an effective, safe, and predictable method of managing corneal astigmatism in cataract patients.
From the Department of Ophthalmology, Academic Hospital Maastricht, Maastricht, The Netherlands
Corresponding author: Noël J.C. Bauer, MD, PhD, Department of Ophthalmology, Academic Hospital Maastricht, P. Debyelaan 25, 6202 AZ Maastricht, The Netherlands.
No author has a financial or proprietary interest in any material or method mentioned.
Presented in part at the XXV Congress of the European Society of Cataract & Refractive Surgeons, Stockholm, Sweden, September 2007, and the 12th European Society of Cataract & Refractive Surgeons Winter Refractive Surgery Meeting and Cornea Day, Barcelona, Spain, February 2008.
ABSTRACT