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Effect of accommodation on vaulting and movement of posterior chamber phakic lenses in eyes with implantable collamer lenses

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Session Details

Session Title: Phakic IOLs II

Session Date/Time: Tuesday 08/09/2015 | 14:00-16:00

Paper Time: 15:15

Venue: Room 17

First Author: : S.Park SOUTH KOREA

Co Author(s): :    H. Lee   S. Kang   J. Choi   B. Ha   E. Kim   T. Kim     

Abstract Details


To investigate and compare vaulting and movement changes during accommodation in eyes with the V4c and V4 implantable collamer lenses (ICL).


Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea. Eyereum Eye Clinic, Seoul, South Korea


The medical records of 39 eyes (20 patients) with the V4 ICL and 57 eyes (29 patients) with the V4c ICL were retrospectively examined and included in analyses. Anterior chamber depth (ACD), posterior corneal surface-to-ICL distance (endo-ICL distance), pupil size, and postoperative vaulting were evaluated using the Visante anterior chamber optical coherence tomography system. Images were taken during the non-accommodative and accommodative states one month after ICL implant. Refractive error, keratometry values, axial length, intraocular pressure, and central corneal thickness were evaluated.


Vaulting did not significantly change during accommodation in eyes with either the V4 or V4c ICL. However, significant reductions in ACD, endo-ICL distance, and pupil size were observed during accommodation in both groups. In eyes with a V4 ICL, the change in [∆] ACD was 0.20 ± 0.13 mm, ∆endo-ICL distance was 0.22 ± 0.13 mm (both P < 0.001), and ∆pupil size was 0.49 ± 0.90 mm (P = 0.021). For eyes with the V4c ICL, ∆ACD was 0.15 ± 0.21 mm, ∆endo-ICL distance was 0.20 ± 0.23 mm, and ∆pupil size was 0.80 ± 1.16 mm (all P < 0.001). The mean reductions of each parameter were not statistically different between eyes with the V4 and V4c ICL.


Contrary to the light stimulation response, accommodation does not significantly affect postoperative vaulting differently in eyes with the V4 ICL and eyes with the V4c ICL.

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