Official ESCRS | European Society of Cataract & Refractive Surgeons
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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A new design of the capsular tension ring, further development: the closed ring

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Session Details

Session Title: Cataract Surgery Instrumentation/Surgical Devices

Session Date/Time: Sunday 11/09/2016 | 10:30-12:00

Paper Time: 11:42

Venue: Hall C1

First Author: : J.Martinez de Aragon THE NETHERLANDS

Co Author(s): :    J. Villada                    

Abstract Details


A disadvantage of a closed capsular tension ring is that a rigid (PMMA) closed ring would require a bigger incision, however a soft (silicone) closed ring might not provide sufficient support to the weakened zonulae. By using a super-elastic material we have been able to make a closed tension ring that provides more resistance to compression then the standard PMMA ring while allowing insertion through a 1mm incision. The purpose of this study is to demonstrate the performance of the newly developed closed capsular tension ring


Private research setting


Compression forces were evaluated as well as susceptibility to damage during manipulation. Insertion techniques were tested and stress on the zonulae was recorded and evaluated.


The closed capsular tension ring has shown to provide a more homogeneous 360 degree resistance to compression compared to the open ended CTR. The use of a super-elastic material allows the CTR to be inserted trough a very small incision without weakening it. The video analysis shows a reduced stress on the zonulae during insertion.


The closed capsular tension ring provides a better resistance to compression then regular open ended CTRs and reduces torsional tension during insertion. By using a super-elastic material it is possible to insert a closed ring trough a very small incision.

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