Toric IOLs
Toric IOLs (intraocular lenses) are the procedure of choice to correct corneal astigmatism of 1 D or more in cases undergoing cataract surgery. Toric IOLs are universally recommended in cases with significant preoperative corneal astigmatism of 1.5 D or more. Even in cases with low astigmatism with a magnitude of around 1 D, the superiority of toric IOLs over monofocal IOLs has been demonstrated in terms of better-uncorrected distance visual acuity.
Various toric IOLs are available commercially, with different material, design, and range of toricity. The choice of IOL depends on the surgeon’s comfort, patient expectations, financial considerations, and availability. A monofocal or multifocal toric IOL may be selected based on the patient’s preference and preoperative assessment.
The applications of toric IOLs are expanding to include cases with high astigmatism, irregular astigmatism, corneal ectatic disorders, and postkeratoplasty cases.
Future technological advancements may further refine the outcomes of toric IOL, with more precise visual results and enhanced IOL stability. Newer customised IOLs are being introduced that may be implanted at the 0°–180° axis without a need for rotational alignment.