Korean J Ophthalmol.  2010 Aug;24(4):207-212. 10.3341/kjo.2010.24.4.207.

Long-Term Efficacy and Rotational Stability of AcrySof Toric Intraocular Lens Implantation in Cataract Surgery

• Kim MH
• Chung TY
• Chung ES

• KMID: 949057
• DOI: http://doi.org/10.3341/kjo.2010.24.4.207

Abstract

PURPOSE
To evaluate the long-term efficacy and rotational stability of the AcrySof toric intraocular lens (IOL) in correcting preoperative astigmatism in cataract patients.
METHODS
This prospective observational study included 30 eyes from 24 consecutive patients who underwent implantation of an AcrySof toric IOL with micro-coaxial cataract surgery between May 2008 and September 2008. Outcomes of visual acuity, refractive and keratometric astigmatism, and IOL rotation after 1 day, 1 month, 3 months, and long-term (mean, 13.3+/-5.0 months) follow-up were evaluated.
RESULTS
At final follow-up, 73.3% of eyes showed an uncorrected visual acuity of 20/25 or better. The postoperative keratometric value was not different from the preoperative value; mean refractive astigmatism was reduced to -0.28+/-0.38 diopter (D) from -1.28+/-0.48 D. The mean rotation of the toric IOL was 3.45+/-3.39 degrees at final follow-up. One eye (3.3%) exhibited IOL rotation of 10.3 degrees, the remaining eyes (96.7%) had IOL rotation of less than 10 degrees.
CONCLUSIONS
Early postoperative and long-term follow-up showed that implantation of the AcrySof toric IOL is an effective, safe, and predictable method for managing corneal astigmatism in cataract patients.

Keyword

Astigmatism; Cataract surgery; Toric intraocular lens

MeSH Terms

*Acrylic Resins
Adult
Aged
Aged, 80 and over
Astigmatism/complications/physiopathology/*surgery
Cataract/*complications/physiopathology
Cataract Extraction/*methods
Female
Follow-Up Studies
Humans
*Lenses, Intraocular
Male
Middle Aged
Prospective Studies
Prosthesis Design
Refraction, Ocular
Time Factors
Treatment Outcome
Visual Acuity

Figure

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  Fig. 1 Visual outcomes. Both postoperative uncorrected visual acuity (UCVA) and best spectacle-corrected visual acuity (BCVA) were significantly improved when compared with preoperative values (p<0.05) (mean final follow-up, 13.3±5.0 months). LogMAR=logarithm of the minimum angle of resolution.

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  Fig. 2 Refractive outcome. Mean refractive cylinder significantly improved compared to preoperative values during all follow-up periods (mean final follow-up, 13.3±5.0 months). D=diopter.

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  Fig. 3 Change in refractive cylinder. D=diopter.

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  Fig. 4 Rotation of toric intraocular lenses at final follow-up.

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  Fig. 5 Mean absolute rotation of the toric intraocular lens over time (mean final follow-up, 13.3±5.0 months).

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