Changes in Accommodative and Binocular Function following Phakic Intraocular Lens for High and Low-to-Moderate Myopia

Esther López-Artero, Francisco Poyales, Nuria Garzón, Alicia Matamoros, Alba Sáez, Ying Zhou and María García-Montero
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Esther López-Artero: Miranza Group, C/Galileo 104, 28003 Madrid, Spain
Francisco Poyales: Miranza Group, C/Galileo 104, 28003 Madrid, Spain
Nuria Garzón: Miranza Group, C/Galileo 104, 28003 Madrid, Spain
Alicia Matamoros: Miranza Group, C/Galileo 104, 28003 Madrid, Spain
Alba Sáez: Miranza Group, C/Galileo 104, 28003 Madrid, Spain
Ying Zhou: OCULUS Iberia, S.L., Tres Cantos, 28760 Madrid, Spain
María García-Montero: Miranza Group, C/Galileo 104, 28003 Madrid, Spain

IJERPH, 2022, vol. 19, issue 11, 1-9

Abstract: The aim was to evaluate accommodative and binocular function of phakic intraocular lens implantable collamer lens (ICL) in high and low-to-moderate myopia. Prospective comparative cohort study with 38 myopic patients who underwent ICL implantation were divided into two groups of 19 patients, each one based on the spherical equivalent (SE): high-power (SE ≤ −6 D) and low-to-moderate (SE > −6 D). The push-up amplitude of accommodation (AA), monocular accommodative facility (MAF), distance and near ocular deviation, near convergence amplitude, near point convergence (NPC), stereopsis, and accommodative convergence/accommodation (AC/A) ratio were assessed before surgery and 1 week and 1 month postoperatively. The mean residual refractive error at 1 month after surgery improved in both groups, 0.18 ± 0.34 D and 0.09 ± 0.26 D, respectively ( p < 0.001). There was a significant decrease in AA in both groups between preoperatively and at 1-week ( p = 0.001; p = 0.008, respectively) and 1-month follow-up ( p = 0.001; p = 0.008). For the rest of the binocular measurements, no statistically significant postoperative changes were found in any group. This finding suggests follow-up studies on amplitude of accommodation in phakic intraocular lens ICL implantation.

Keywords: refractive surgery; phakic intraocular lens; implantable collamer lens (ICL); accommodation; binocular vision; high-myopia and low-to-moderate myopia (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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