Rotational Stability Of An Advanced-Optic Toric Iol Implanted Using Cohesive Ovds Versus Balanced Salt Solution: A Prospective Contralateral Study
Published 2026 - 44th Congress of the ESCRS
Reference: PP06.16 | Type: Free paper | DOI: 10.82333/1gvf-fp54
Authors: Prof. Dr Ahmed Assaf* 1 , Dr Noha Fawky 2
1Ain Shams University,Cairo,Egypt;Assaf Clinic,Cairo,Egypt;Watany Eye Hospital,Cairo,Egypt, 2Assaf Clinic,Cairo,Egypt;Watany Eye Hospital,Cairo,Egypt
Purpose
To compare the postoperative rotational stability of the Eyhance Toric II intraocular lens when implanted using cohesive ophthalmic viscosurgical devices (OVDs) versus balanced salt solution in a paired-eye design, and to determine whether the implantation medium influences final IOL alignment.
Setting
Prospective Contralateral Study at Ain Shams University and Watany Eye Hospital, Cairo, Egypt
Methods
This prospective paired-eye study included patients undergoing bilateral cataract surgery with Eyhance Toric II IOLs. In each patient, one eye was implanted with a cohesive OVD, while the fellow eye was implanted with BSS to achieve a cleaner capsular bag environment. Random assignment of OVD or BSS for implantation was determined via a coin toss. Two groups were identified: OVD and BSS groups. Rotational stability was measured using ray-tracing aberrometry at 1 week, 1 month, and 3 months postoperatively. Additional study parameters included postoperative refractive astigmatism, uncorrected distance visual acuity (UDVA), and corrected distance visual acuity (CDVA) at three months postoperatively.
Results
Each group consisted of 80 eyes. The mean age of the patients was 67 ± 9.5 years. During surgery, greater difficulty was encountered when manipulating the IOL to the desired axis in the BSS group. One week after surgery, the mean IOL rotation was 1.4 ± 1.6 degrees in the OVD group and 1.7 ± 1.8 degrees in the BSS group, respectively (P>0.05). No statistically significant IOL rotation was observed at subsequent follow-up visits one month and three months. Postoperative uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and residual refractive astigmatism were comparable between the two groups without statistically significant differences.
Conclusions
Rotational Stability of the Tecnis Eyhance Toric II IOL was independent of capsular bag implantation medium. Cohesive OVD improved intraoperative alignment control without affecting postoperative stability or visual outcomes.