Biotech manufactures Capsular Tension Rings in clear as well as Blue PMMA CQ UV, Polymethylmethacrylate (PMMA). Capsular Tension Rings enhance the safety and efficacy during phacoemulsification and posterior chamber Intraocular lens implantation. They also prevent vitreous herniation and maintain the circular contour of the capsular bag. CTR's also tend to reduce Intraocular lens decentration, which improves vision and gives additional support to the IOL. They may also inhibit epithelial cell proliferation, thus reducing the chances of capsule opacification. Capsular Tension Rings are available in three models CTR 11, CTR 12 and CTR 13.
CTR 11, CTR 12 and CTR 13
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.
Note: Available in Clear as well as Blue PMMA
Technical Specifications:
Model
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
Holes
2
2
2
Indications:
Inadequate zonular support causing subluxation of lens
Patients with pseudoexfoliation syndrome
Trauma causing zonular dialysis
Phacodonesis
Myopic eyes with IOL power of less than 16 diopters