Long-term stability of keratometric astigmatism after limbal relaxing incisions

Abstract

Dr. Borasio is the creator of Astig Plot. No other author has a financial or proprietary interest in any material or method mentioned.

The location of incision in cataract surgery and its impact on induced astigmatism

“…Thus, different incision sites (on-axis, superior, superonasal, superotemporal, and temporal), limbal relaxing incisions (LRI), and toric intraocular lenses (IOL) are astigmatism correction strategies in cataract surgery. To date, the efficiency of these methods has been evaluated in different studies [16,21,23,[25][26][27][28][29][30][31][32][33]. Among astigmatism correction methods, the choice of incision site is the oldest method.…”

“…Among astigmatism correction methods, the choice of incision site is the oldest method. Although recent research has indicated the usefulness of LRI in reducing astigmatism, the technique is not a part of the cataract surgery procedure and is an extra technique [26,29,30].…”

Toric Intraocular Lenses in the Correction of Astigmatism During Cataract Surgery

“…Long-term stability studies of cornealrelaxing incisions are scarce, but it has been reported that the surgically induced astigmatism changes most in the first 10 weeks after surgery, with little change from 10 weeks up to 3 years after surgery. 9 Toric IOLs show the greatest rotation in the early postoperative period with little rotation after 1 week. 10 We conducted the present systematic review and metaanalysis to evaluate the benefits and potential harms of toric implantation to correct preexisting corneal astigmatism in patients undergoing phacoemulsification for age-related cataracts.…”

Comparison of Toric Foldable Iris-Fixated Phakic Intraocular Lens Implantation and Limbal Relaxing Incisions for Moderate-to-High Myopic Astigmatism

“…The largest amount of refractive regression occurs between 1 and 3 months after LRIs, and the refractive status stabilizes between 3 and 6 months postoperatively 21. Another study showed that surgically induced astigmatism continued to change up to 10 weeks after LRIs, but remained stable after 10 weeks and up to 3 years postoperatively 22. We used 6-month follow-up data to exclude the possible effects of refractive regression.…”