Circular expansion and stabilization of the periphery of the capsular bag
Reduced risk of capsular fibrosis and shrinking
Safe IOL centration in eyes with zonular dehiscence
Prevents vitreous herniation from weak zonular area
Capsular Tension Rings are available in three models CTR 11, CTR 12 and CTR 13.
|CTR 11||CTR 12||CTR 13|
|MATERIAL||PMMA CQ-UV||PMMA CQ-UV||PMMA CQ-UV|
|OVERALL DIAMETER||11.0 mm||12.0 mm||13.0 mm|
|INSERTION DIAMETER||9.7 mm||10.4 mm||11.4 mm|
SELECTION OF PMMA CTR MODEL (SIZE)
CTR 11 has an uncompressed diameter of 11.0 mm and is designed for placement in hyperopic eyes.
CTR 12 has an uncompressed diameter of 12.0 mm and is designed for placement in average size eyes.
CTR 13 has an uncompressed diameter of 13.0 mm and is designed for placement in myopic eyes.
Inadequate zonular support causing subluxation of lens
Patients with pseudoexfoliation syndrome
Trauma causing zonular dialysis
Myopic eyes with IOL power of less than 16 diopters
Repositioning of IOL decentration
Disorders like: Marfan’s syndrome, Scleroderma, Homocystinuria, Spherophekia, Porphyria, Hyperlysinemia, Sulfite Oxidase deficiency