Capsular Tension Ring

Capsular tension rings are designed to stabilize the capsular bag in cases of zonular dehiscence he said allowing an iol to be implanted in the bag when it might otherwise have had to be positioned elsewhere.

Capsular tension ring. Cionni md for cases in which a ctr wouldn t be appropriate. This is the first class about the author s experience with the last 30 surgeris with capsular tension ring ctr and capsular tension segment cts this chan. Pmma capsular tension ring ctr ophtec capsular tension rings are indicated for the stabilization of the capsular bag in the presence of weakened or compromised zonules. The open ended ring has a flexible horseshoe shape and is made of pmma filament with eyelets at either end.

Morcher type 14 ctrs are are available in 3 different diameters to accommodate patients individual capsular bags. Morcher capsular tension rings stabilize the capsule in case of defective or missing zonules. After capsulorhexis and before phacoemulsification the surgeon may implant up to three in severe cases capsular tension segments to support the capsule over weakened zonules. These devices for cataract surgery are specifically designed for scleral fixation with suture.

Capsular tension ring implantation after capsulorhexis in phacoemusification of cataracts associated with pseudoexfoliation syndrome. Bayraktar s alton t kucuksumer y yilmaz of. Ahmed s capsular tension segment is a further modification to the capsular tension ring developed by robert j. Capsular tension rings are flexible plastic loops which are designed to exert outward force at the capsular bag equator to help distribute forces and help support areas of zonular loss.

The cionni capsular tension ring ctr is used to stabilize the capsular bag in cases of damaged or missing zonules. This problem is most often seen in cases of trauma pseudoexfoliation syndrome. Ophthalmol clin north am. They are very useful in cases of trauma with focal zonular loss and may provide additional stability in certain cases of progressive zonulopathy like pseudo exfoliation.

Capsular tension rings ctrs well known to ophthalmic surgeons are c shaped devices used to stabilize the capsular bag of the crystalline lens during cataract surgery in eyes with zonular weakness. Update on endocapsular support devices.