Rotational stability of a new multicomponent intraocular lens
Authors Uy HS, Tesone-Coelho C
Received 7 May 2019
Accepted for publication 22 August 2019
Published 26 September 2019 Volume 2019:13 Pages 1897—1907
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Nicola Ludin
Peer reviewer comments 2
Editor who approved publication: Dr Scott Fraser
Harvey S Uy,1,2 Carolina Tesone-Coelho3
1Cataract and Refractive Service, Peregrine Eye and Laser Institute, Makati, Philippines; 2Department of Ophthalmology and Visual Sciences, University of the Philippines, Manila, Philippines; 3Department of Research & Development, InfiniteVision Optics, Strasbourg, France
Correspondence: Harvey S Uy
Cataract and Refractive Service, Peregrine Eye and Laser Institute, 50 Jupiter St., Makati, Metro Manila 1209, Philippines
Tel +63 2 890 0115
Fax +63 2 511 8505
Purpose: To evaluate the rotational stability of the Precisight multicomponent intraocular lens (MCIOL) following primary implantation and after enhancement procedures.
Patients and methods: Prospective, single-center study of eyes that underwent routine cataract surgery with implantation of a non-toric MCIOL, (Precisight, InfiniteVision, Optics, Strasbourg, France). The axis of the MCIOL was measured with a line bisecting the two dialing holes in the front lens. Intraoperative orientation was determined using a digital surgical guidance system while the postoperative orientation was determined using slit-lamp imaging. Two populations were analyzed: eyes that only underwent cataract surgery (PRIM) and eyes that also underwent enhancement (ENH), consisting of surgical front optic exchange. Both populations had 3 observation visits: first implantation (P-Op); 3 months (3mo) and 6 months (6mo) after primary surgery. The ENH group had an additional fourth visit that corresponded to the enhancement surgery (E-Op). The main outcome measure was mean absolute change in MCIOL orientation (degrees). The effects of axial length (AL) and anterior chamber depth (ACD) on IOL rotational stability were examined.
Results: Thirty-three eyes received MCIOL of which 29 had usable orientation images. Of these, 12 were in the PRIM group and 17 underwent ENH. Regarding the mean absolute rotation, among PRIM eyes, P-Op to 3mo was 3.03±2.45 degrees; P-Op to 6mo, 2.28±1.54 degrees; and 3–6mo, 2.37±1.56 degrees. Among the ENH eyes, P-Op to 3mo was 3.09±1.68; E-Op to 6mo, 2.71±3.30 and P-Op to 6mo, 3.62±3.42. There were no significant differences in the IOL rotation. There were no statistical differences in rotational stability between the ENH and PRIM groups. There was no correlation between IOL rotation and AL or ACD.
Conclusion: Precisight appears to be rotationally stable. The enhancement procedure does not affect rotational stability.
Keywords: rotational stability, cataract, piggyback lens, multicomponent intraocular lens, intraocular lens exchange
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