Comparison Of Rotational Stability Of Two Aspheric Toric Intraocular Lenses (Iols): Updated Results Of A Randomised Controlled Study
Published 2025 - 43rd Congress of the ESCRS
Reference: PP01.12 | Type: Poster | DOI: 10.82333/qvkh-ew86
Authors: Ashmal Jameel* 1 , Vijay Wagh 2 , Scott Robbie 2 , Sancy Low 2 , Maninder Bhogal 2 , Elodie Azan 2 , Seema Verma 2 , David O'Brart 1
1Ophthalmology,St Thomas' Hospital,London,United Kingdom;King's College London,London,United Kingdom, 2Ophthalmology,St Thomas' Hospital,London,United Kingdom
Purpose
To evaluate the rotational stability of two monofocal toric intraocular lenses (IOLs), the Eyhance Toric II IOL and the Alcon IQ SN6ATX IOL using slit lamp photography image analysis.
Setting
University Hospital, Guy’s and St. Thomas NHS Foundation trust.
Methods
Patients with bilateral cataracts and corneal astigmatism of over 1.25 dioptres, and no significant ophthalmic problems were randomised to receive either bilateral insertion of Alcon SN6ATX or the Eyhance Toric II IOL with micro-monovision. Digital photography was performed on day of surgery and at 6 weeks and 6 months for one eye per patient. Toric IOL axis marker positions were measured against iris and scleral landmarks, for assessment of Toric IOL rotation. Initial insertion IOL position was compared with intended position. IOL position was compared with insertion position at 6 weeks after surgery. Photography was analysed by an independent third-party consultant, using AMO TECNIS Toric Lens Imaging Program© (Johnson & Johnson, USA).
Results
Thirty-seven patients randomised to the Alcon SN6ATX group (11M:26F, mean age 71.9 yrs), and thirty-one patients to the Eyhance Toric II group (9M:22F, 70.98 yrs) have completed 6-week follow-up. Mean initial angle deviation, from targeted angle, in the Alcon SN6ATX group was 2.33˚ (-13.25-12.23; SD 6.02), and 0.17˚˚ (-10.93 – 11.28; SD 6.23) in the Eyhance Toric group (p= 0.32). No statistically significant differences were found between the two groups. Mean 6-week angle deviation, from that seen on the day of surgery, in the Alcon SN6ATX group was 0.00˚˚ (-1.617 - 3.187; SD 1.125), and 0.13˚˚˚ (-2.167 – 2.167; SD 1.116) in the Eyhance Toric group (p=0.63).
Conclusions
There were acceptable levels of Toric IOL rotational stability in both IOL groups, and non-inferiority of the Eyhance Toric II IOL when compared to the Alcon Toric IOL. We aim to present further data, with larger groups and 6-month follow-up data.