ESCRS - PO728 - Changes In Astigmatism After Implantation Of Non-Toric Icl Lenses In Patients With High Astigmatism

Changes In Astigmatism After Implantation Of Non-Toric Icl Lenses In Patients With High Astigmatism

Published 2025 - 43rd Congress of the ESCRS

Reference: PO728 | Type: Free paper | DOI: 10.82333/tr08-8w02

Authors: Gerd Uwe Auffarth* 1 , Florian Kretz 2 , Pedro Tañá Rivero 3

1Dept. of Ophthalmology,University of Heidelberg,Heidelberg,Germany, 2Precise Vision Augenärzte,Rheine,Germany, 3Oftalvist,Alicante,Spain

Purpose

To assess the changes in astigmatism after combined ICL-LASIK surgery in patients with myopia, high astigmatism, and posterior chamber structural abnormalities, and to explore the potential influencing factors.

Setting

Wuhan Hongshan Aier Eye Hospital ,Wuhan ,China

Methods

In this prospective study, 20 eyes with abnormal posterior chamber structure were included. The combined procedure involved the implantation of an ICL to correct myopia, followed by LASIK (3-7months postoperatively) to address residual astigmatism.Manifest refraction and corneal topography were used to compare total eye astigmatism and corneal astigmatism at the preoperative, post-ICL, and post-LASIK stages. Refractive outcomes, including uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), were measured.

Results

After ICL implantation, 80% of eyes achieved a UDVA better than 20/20, even with residual astigmatism. 100% of eyes achieved a UDVA better than 20/25. Meanwhile, corneal topography showed a change in astigmatism of -0.25 ± 0.11 D, and residual total eye astigmatism was -2.25 ± 0.65 D. Significant reductions in astigmatism were observed, with an average decrease of 1.45 ± 0.25 D in total eye astigmatism.After both ICL and LASIK, 100% of eyes achieved a UDVA within 1 line of preoperative CDVA. Additionally, 100% of eyes achieved a target spherical equivalent (SEQ) within 0.50 D, and all eyes were within 0.25 D of the intended plano cylinder.

Conclusions

For myopic patients with high astigmatism, significant reductions in total eye astigmatism were observed in the early postoperative period after ICL implantation alone. This trend is likely related to visual feedback and optical compensation. When designing surgeries for such cases, the changes in astigmatism should be carefully considered.