They named it an equator ring, designed to maintain the circular contour of the capsular bag after lens removal during cataract surgery. Indications and clinical outcome of capsular tension ring ctr implantation. To evaluate the safety and efficacy of implantation of a capsular tension ring ctr and posterior chamber intraocular lens. Capsular tension ring, phacoemulsification surgery, indications. The ctr is intended for placement into the equator of the capsular bag during cataract surgery by using either forceps or a specially designed insertion instrument. Eyejet ctr singleuse preloaded capsular tension ring.
Indications and clinical outcome of capsular tension ring ctr ncbi. Indications and clinical outcomes of capsular tension ring. The main outcome measures were the rates of intraoperative zonular separation and capsular. 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. All data files are available from the dryad database. Morcher capsular tension rings are manufactured from onepiece pmma and stabilize the capsule in cases of damaged or missing zonules. Management of the subluxated crystalline lens american society of. Thirtynine eyes that did not have a ctr implanted served as a control. In cases of even mild zonular laxity but with a progressive pathologic state such as pxf. The morcher capsular ten sion ring is a prosthetic device designed to stabilize the crystalline lens capsule in the presence of weak or partially absent zonules in adult patients under going cataract extraction with an intraocular lens. Spring constants of capsular tension rings article in journal of cataract and refractive surgery 309. Wrinkling of the capsule while it is being pinched by capsulorhexis forceps is a sign of weak zonular status. Ringject is a preloaded capsular tension ring ctr in a single use injector. Safe iol centration in eyes with zonular dehiscence.
Spring constants of capsular tension rings request pdf. The full text of this article is available in pdf format. Circular expansion and stabilization of the capsular bag. Combination of capsular tension ring and capsular tension segment. Ophtec capsular tension rings are indicated for the stabilization of the capsular. Purpose to assess the influence of capsular tension ring ctr on surgical outcomes of toric. Capsular tension rings ctr are nonoptical implants to expand and stabilize the capsular bag. In recent years, internal tamponade with a capsular tension ring. The morcher capsular tension ring is a prosthetic device designed to stabilize the crystalline lens capsule in the presence of weak or partially absent zonules in adult patients undergoing cataract extraction with an intraocular lens. The stabileyes capsular tension ring ctr semicircular ring is made entirely of perspex cq uvultraviolet light absorbing polymethylmethacrylate, pmma with one manipulation eyelet at each end of the ring. Capsular tension ring implantation after capsulorhexis in.
The author demonstrates bimanual,microincisional insertion of the ctr. Device types thefollowingsectionwilldiscusstheavailabletypes of endocapsular support devices. Ophtec capsular tension rings are indicated for the stabilization of the capsular bag in the presence of weakened or compromised zonules. Indications and clinical outcome of capsular tension ring. Stabileyes capsular tension ring abbott medical optics. It may be possibly to utilize a cts in these cases,14.