Effect of a capsular tension ring on intraocular lens decentration and tilting after cataract surgery

In this small population, there was no consistent effect on refractive outcome when a Morcher CTR was placed that would necessitate modification of intraocular lens power calculations. The eyes with a CTR had refractive outcomes as accurate as and more precise than the outcomes in the contralateral eyes with milder zonular instability and the control population of eyes without zonular instability in either eye. The Morcher CTR is not only a tool to assist in complicated cataract surgeries, but a device that can deliver more accurate and precise refractive outcomes.

Section: Resultsmentioning

confidence: 99%

Effect of the Morcher capsular tension ring on refractive outcome

Jackson

2006

“…8,9 Implantation of a CTR is recommended when there is slight zonular weakness. 10,11 Delayed dislocation of an IOL-CB complex has been described in association with pseudoexfoliation syndrome, 1,5,6,12,13 with ocular trauma, 14 after vitrectomy, 15 after neodymium:YAG (Nd:YAG) capsulotomy, 16 and for unknown reasons. 2,17,18 In the case of pseudoexfoliation, the increased friability and decreased tensile strength of the zonules lead to their disruption and subsequent IOL dislocation.…”

Section: Discussionmentioning

confidence: 99%

Surgical treatment of a dislocated intraocular lens–capsular bag–capsular tension ring complex

Moreno-Montañés¹,

Heras²,

Fernández-Hortelano³

2005

We describe a surgical technique for managing late dislocation of an intraocular lens-capsular bag-capsular tension ring (IOL-CB-CTR) complex. Two 10-0 polypropylene sutures are placed transsclerally over and under the CTR through the anterior and posterior capsules to capture the CTR, which then is retracted and sutured through the sclera. The same maneuver is performed 180 degrees away. This simple, easy, effective procedure can be performed with a small corneal incision and does not require extraction of the IOL-CB complex. Although the CTR does not completely prevent IOL-CB dislocation, it provides the possibility of suturing the IOL-CB to the sulcus without replacing the IOL.

“…[3][4][5][6][7][8][9] It has also been shown in most accounts to limit capsular bag phimosis, thus preventing intraocular lens (IOL) decentration, tilting, and deformation. 10 The goal of this study was to gain a better understanding of the anatomic relationship of the Morcher CTR to posterior segment structures (ie, posterior iris, ciliary body) and the posterior chamber IOL using ultrasound biomicroscopy.…”

mentioning

confidence: 99%

Anatomic evaluation of the Morcher capsular tension ring by ultrasound biomicroscopy

Jackson

2006