Capsular tension ring implantation after capsulorhexis in phacoemulsification of cataracts associated with pseudoexfoliation syndrome

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

“…[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

“…5,11,12 New innovations, driven by advances in technology, will assist us as we strive to improve the safety of ophthalmic surgery.…”

Section: Discussionmentioning

confidence: 99%

“…5 After surgery, a CTR helps maintain the equatorial area of the lens capsule in a fully distended circle of 360 degrees, which minimizes the risk for decentration of the intraocular lens (IOL) and may decrease the risk for dislocation of the capsule-IOL complex. 5,6 One challenge in using a CTR is the difficulty of removing nuclear or cortical material once the ring has been implanted. The circular ring compresses residual lenticular/cortical material against the capsular bag and impedes its removal.…”

mentioning

confidence: 99%

Modified capsular tension ring for cortical removal after implantation

Henderson¹,

Kim²

2007

We describe a modification of the original 14C Morcher capsular tension ring. The new ring, the Henderson capsule tension ring (HCTR, Morcher), is an open C-shaped loop made of poly(methyl methacrylate). It has 8 equally spaced indentations of 0.15 mm to improve the ease of removing nuclear and cortical material while maintaining equal expansion of the capsular bag. The HCTR is currently under review by the U.S. Food and Drug Administration.