Purpose: An evaluation of the visual and refractive results was undertaken one year after implantation of a trifocal diffractive toric intraocular lens (IOL) during cataract surgery.
Methods: In a prospective study patients with a calculated postoperative corneal astigmatism of ≥ 0.75 D received a diffractive trifocal toric IOL (AT LISA tri toric 939MP, Carl Zeiss Meditech, Jena, Germany) during cataract surgery. One year postoperatively the near, intermediate and distance visual acuity, corrected and uncorrected vision as well as refraction were evaluated.
Results: 20 patients (40 eyes) with a median age of 59 ± 11 years of which 15 were female underwent bilateral cataract surgery. One year postoperatively a binocular uncorrected distance visual acuity (UDVA) of 0.10 logMAR ± 0.11 and a corrected distance visual acuity (CDVA) of 0.00 logMAR ± 0.08 could be found. Binocular intermediate visual acuity (UIVA) and near visual acuity (UNVA) were 0.00 logMAR ± 0.05 and 0.09 logMAR ± 0.07, respectively. 100 % of patients were between ± 1.0 D from target refraction. Even 1 year after surgery no patient had an IOL rotation greater than 5°.
Conclusion: The implantation of a trifocal toric intraocular lens offers an effective way for visual rehabilitation in near, intermediate and far distances with a good rotational stability of the IOL platform.
Georg Thieme Verlag KG Stuttgart · New York.