In-the-Bag Behavior of a New Aspheric Hydrophobic Acrylic Toric Intraocular Lens

To evaluate tilt, decentration, and axial stability of the Clareon toric intraocular lens (TIOL) (CNW0T3-9; Alcon Laboratories, Inc) over a 6-month follow-up period.

A single-center, prospective, interventional clinical trial was conducted with a study population of 130 eyes from 82 patients who received a Clareon TIOL. Tilt, decentration, and the aqueous depth were determined preoperatively and at 1 week and 6 months postoperatively using anterior segment optical coherence tomography (Casia 2; Tomey Corporation). Difference vectors were used to assess changes in individual decentration and tilt. Uncorrected intermediate visual acuity was measured at 66 cm at 6 months postoperatively.

Mean tilt and decentration values were 5.7 ± 1.7° and 0.17 ± 0.1 mm for the crystalline lens, 5.6 ± 1.5° and 0.24 ± 0.13 mm for the TIOL at 1 week, and 5.8° ± 1.6° and 0.24 ± 0.15 mm for the TIOL at 6 months. Mean changes in tilt and decentration from preoperatively to 6 months were 1.01 ± 0.86° and 0.18 ± 0.12 mm. Tilt and decentration correlated between the crystalline lens and TIOL at 6 months (r = 0.92; P < .01, r = 0.29; P < .01). A posterior axial shift of 0.023 ± 0.054 mm was observed between 1 week and 6 months. Mean binocular uncorrected intermediate visual acuity at 66 cm at 6 months postoperatively was 0.18 ± 0.13 logarithm of the minimum angle of resolution (20/30 Snellen).

Tilt and decentration of the Clareon TIOL were generally low and a strong correlation was found between crystalline lens tilt and TIOL tilt at 6 months.