Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


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Iridocorneal angle changes after implantable collamer lens V4c placement

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Session Details

Session Title: Presented Poster Session: Phakic IOLs II

Session Date/Time: Monday 12/09/2016 | 09:30-11:00

Paper Time: 09:50

Venue: Poster Village: Pod 2

First Author: : I.Casal PORTUGAL

Co Author(s): :    S. Monteiro   D. Dias   M. Lume   R. Salgado   M. Pinto  

Abstract Details


To evaluate the impact on the iridocorneal angle (ICA) after implantable collamer lens (ICL) V4c placement, using Scheimpflug tomography – Pentacam HR®, ultrasound biomicroscopy (UBM) and gonioscopy.


Department of Ophtalmology of a tertiary referral centre in Oporto, Portugal – Centro Hospitalar do Porto


Retrospective study of all patients who underwent ICL V4c implantation.Inclusion criteria:age 20 to 45 years-old with a stable refractive state;minimum -3.00 diopters of myopia(spherical lens)/>1.5 diopters of astigmatism(toric lens);anterior chamber depth> 3.0 mm or>2.8mm with an ICA>35º. Exclusion criteria:cataract; anterior chamber depth< 2.8 mm or narrow angle(< 30º);history of glaucoma/ocular inflammation/corneal or retinal disease;and low endothelial cell count. The ICA, anterior chamber depth(ACD) and intra-ocular pressure(IOP)mesurements as well as cilliary sulcus diameter and trabecular pigmentation, were assessed preoperatively and at the end of follow-up; using Pentacam®, aplanation tonometry, UBM and gonioscopic, respectively.Minimum follow-up of 3 months.


54 eyes were included(26 female),mean age was 31.2 years. We implanted 12.1 mm lenses in 8 eyes,12.6 mm in 22 eyes and 13.2 mm in 24 eyes. Preoperatively there were no alterations on the anterior segment;average ciliary sulcus diameter was 11.78 mm and all eyes were in grade 4(Shaffer score). Before surgery average ACD was 3.2 mm,mean IOP was 13 mmHg and mean angle was 39.69 degrees. At the end of the follow-up mean ACD was 3.1 mm;mean IOP was 12,7 mmHg and mean angle was 25.61 degrees. UBM showed narrowing of the angle but gonioscopy didn’t show general increase of the trabecular pigmentation and all eyes were in grade 3 and 4 in Shaffer score.


The Pentacam® allowed quick, easy and more comfortable for the patient (non-contact) assessment of the anterior chamber parameters pre- and postoperatively. These data along with UBM and gonioscopy are extremely important in patient selection as well as in the follow-up after surgery. Although there was a narrowing of the ICA after ICL V4c implantation, no major complications such as IOP elevation or glaucoma were found. Careful monitoring of the ICA and IOP is important in the early postoperative but long term follow-up of these patients is required.

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