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Visual outcomes after implantation of Precizon toric intraocular lens

Poster Details

First Author: R.Pinto Proença PORTUGAL

Co Author(s):    L. Costa   A. Vicente   V. Lemos   A. Santos   J. Ferreira   J. Cunha     

Abstract Details

Purpose:

Correction of corneal astigmatism is a key element of cataract surgery, since post-surgical residual astigmatism can compromise the patient's uncorrected visual acuity. Toric intraocular lens implantation compensates for corneal astigmatism at the time of surgery reducing ocular astigmatism and providing better visual outcomes. Our purpose is to evaluate visual and refractive outcomes of cataract surgery with toric intraocular lens (IOL) implantation (Precizon toric, Opthec BV) and investigate their predictability, efficacy, and safety.

Setting:

Centro Hospitalar de Lisboa Central, Lisboa, Portugal

Methods:

Prospective case series of 15 eyes of 15 patients who had senile cataract and corneal astigmatism of at least 1.25D and underwent phacoemulsification with implantation of hydrophilic acrylic intraocular lens (Precizon toric, Opthec BV). Preoperative evaluation included slit-lamp examination, tonometry, fundoscopy, automatic keratometry, uncorrected and corrected visual acuity, Pentacam® topography and Lenstar® LS 900 optical biometry. Postoperative examinations were scheduled at day 1, 1 month and 3 months and included slit lamp photography, documenting IOL rotation, tilt or decentration, uncorrected visual acuity, best-corrected visual acuity, surgically induced astigmatism and complications.

Results:

The corrected distance visual acuity 3 months postoperatively was 20/25 or better in 95% of eyes. The mean refractive cylinder was less than -0.75D at 3 months postoperatively with a mean SE of less than 0.75D. There were statistically significant differences between the preoperative and 3-month postoperative measurements (p less than 0.05). The mean IOL misalignment was less than 5 degrees at day 1, 1 month and 3 months postoperatively.

Conclusions:

Toric IOL implantation is an effective and safe method to reduce preexisting corneal astigmatism at the time of cataract surgery and to optimise visual outcomes for astigmatic patients. Overall this IOL performed well in astigmatism correction and had a good stability with less rotation misalignment errors.

Financial Disclosure:

NONE

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