CLINICAL OUTCOMES AND ROTATIONAL STABILITY OF A CLOSED LOOP MONOFOCAL TORIC INTRACOULAR LENS AFTER CATARACT SURGERY
Published 2025 - 29th ESCRS Winter Meeting
Reference: PO086 | Type: Free Paper | DOI: 10.82333/va4g-hf04
Authors: Catarina Francisco* 1 , Joana Rocha 2 , Renato Correia Barbosa 2 , Emmanuel Neves 2 , Alberto Lemos 2 , Rui Avelino Resende 2 , Paula Tenedório 2
1Ophthalmology,Unidade Local de Saúde de Matosinhos,Matosinhos,Portugal;Porto University,Faculty of Medicine,Porto,Portugal, 2Ophthalmology,Unidade Local de Saúde de Matosinhos,Matosinhos,Portugal
Purpose
Corneal astigmatism greater than 1.5 diopters is a common refractive error present in approximately 15 to 22% of patients scheduled for cataract surgery. If not corrected, it will cause residual refractive astigmatism and spectacle dependence. Toric intraocular lenses allow the correction of astigmatism during cataract surgery. The purpose of this study is to assess the visual outcome and rotational stability of a single-piece hydrophilic monofocal toric intraocular lens after cataract surgery in patients with preexisting corneal astigmatism.
Setting
In this prospective study, the authors analyzed eyes implanted with RayOne® toric intraocular lens after phacoemulsification surgery at Unidade Local de Saúde de Matosinhos in Matosinhos, Portugal, between September 2022 and March 2024.
Methods
A prospective clinical study was conducted including 117 eyes. Patients with cataract and corneal astigmatism greater than 1.5 diopters measured with the IOLMaster 700® were included. Calculations of the intraocular lens power and axis placement were performed using the intraocular lens manufacturer’s online calculator (Raytrace®). Outcomes of uncorrected, best corrected visual acuities and refractive status were analyzed at 1 and 6 months postoperatively. Intraocular lens rotation and posterior capsule opacification were evaluated at 6 months postoperatively.The study followed the tenets of the Declaration of Helsinki and was approved by the local ethics committee of Unidade Local de Saúde de Matosinhos. Written informed consent was obtained from all patients before surgery. Statistical analysis was performed with SPSS Statistics, version 29.0.
Results
The median postoperatively uncorrected visual acuity improved compared to the median of preoperative best corrected visual acuity (0.00 (0.10) logMAR vs 0.30 (0.3) logMAR, p<0.001). The mean preoperative keratometric cylinder was 2.80±1.22 diopters (range 1.50-8.18) and the mean postoperative refractive cylinder was 0.68±0.50 diopters (range 0.00-2.50 D) (p<0.001). A mean rotation relative to the intended axis of 1.41º±2.22º (range 0-10º) was recorded at 6 months. At the last follow-up, 94.6% of the eyes showed no signs of posterior capsule opacification.
Conclusion
Toric intraocular lens implantation can provide spectacle-independence for distance vision and is becoming increasingly significant in modern cataract surgery. RayOne® toric intraocular lens implantation after cataract surgery was stable and effective in correcting preexisting regular corneal astigmatism.