Abstract:

Astigmatism is an important factor affecting visual quality after cataract surgery. Toric intraocular lenses (Toric IOL) is the most stable and effective solution for astigmatism. Currently, 10 monofocal toric IOL models and 4 multifocal toric IOL models are available. The majority of studies agree on Toric implantation in patients with over 0.75D of regular corneal astigmatism who want postoperative distance spectacle independence.  Multifocal Toric IOLs which divide the available light between the distance and near focus, are not recommended to cataract patients in presence of ocular comorbidities affecting visual acuity. The factors to take into account for Toric IOL correction include surgical induced astigmatism (SIA), effective lens position (ELP), IOL spherical powers and accurate measurement of anterior and posterior keratometry. It is important to match accurately the marks of the Toric IOL with the preoperative marking astigmatism axis during operation. Postoperative IOL rotation is a common complication. (Int Rev Ophthalmol, 2019, 43:  128-132)