ESCRS - PO428 - Comparative Evaluation Of Long-Term Axial Stability Of Two Different Models Of Intraocular Lenses In Patients With An Eye Length More Than 26 Mm

Comparative Evaluation Of Long-Term Axial Stability Of Two Different Models Of Intraocular Lenses In Patients With An Eye Length More Than 26 Mm

Published 2022 - 40th Congress of the ESCRS

Reference: PO428 | Type: Free paper | DOI: 10.82333/pcv4-5s75

Authors: Olga Fomina* 1 , Boris Malyugin 2 , Aleksander Shpak 3 , Olga Fomina* 1

1Clinical research,S.N. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation,Moscow,Russian Federation, 2deputy CEO for Scientific and Research Work of the S.N. Fyodorov Eye Microsurgery MNTK, Doctor of Medicine, Professor,S.N. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation,Moscow,Russian Federation, 3Head of diagnostic department,S.N. Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russian Federation,Moscow,Russian Federation

Purpose

To evaluate and compare axial stability in both IOL platforms.

To compare optic tilt stability, visual and refractive outcomes and wound healing.

Setting

Prospective, randomized, interventional, comparative study (2 groups, parallel design); single centre, unilateral implantation, one surgeon; 6 months follow-up period

Sample size: 78 patients, 78 eyes, 39 eyes in each group

Methods

Operations performed by one surgeon using the Centurion vision system under control of the Verion with implantation of two types of IOLs – Clareon AutonoMe and Hoya iSert 251. Results evaluated on day 7 after surgery. The position of the IOL in the capsular bag assessed with OCT AS (CASIA2, Tomey). IOL position on day 7 after surgery reported as a baseline and subsequently compared with data obtained at 1 month post-op. 3, 6 months IOL position will be obtained during this study.

The distance from the corneal epithelium to the anterior surface of the IOL measured with OCT AS. The deviation from the baseline in the long term period analyzed. Optic tilt measured on OCT, as a baseline – AC angle on 7th day from surgery from limbus to limbus. 

Results

The average power of the implanted IOL in the group Hoya 251 was 12.35±3.20, and in the group Clareon - 14.13±3.33 (p>0.05).

We have obtained the data of visual acuity after implantation of two different models of monofocal intraocular lenses 1 month post-op in 21 patients. BCVA at far increased from 0.26±0.29 (LogMAR)  to 0.09±0.14 (LogMAR) after Hoya 251 implantation, and from 0.37±0.13 (LogMAR)  to 0.07±0.21 (LogMAR) after Clareon implantation 1 month after surgery, p>0.05. 

 

Conclusions

Mean tilt was 5.1° toward the inferotemporal direction, decentration 0.30 mm in temporal direction after Hoya implantation, and 4.6° toward the inferotemporal direction, decentration 0.34 mm in the upper sector after Clareon implantation (measured with narrow pupil), and mean tilt was 4.9°, decentration 0.33 mm toward the inferotemporal direction after Hoya implantation, and 6.4° in the temporal direction, decentration 0.22 mm in the upper sector after Clareon implantation (measured under mydriatic condition).

Clareon IOL platform provides higher axial stability in patients with an eye length more than 26 mm compared to Hoya 251 IOL. Mean axial displacement IOL in the group Hoya 251 was 0.18±0.21, in the Clareon group 0.09±0.07 (p<0.05).