A prospective, controlled study of a 9/0 elastic polypropylene suture for cataract surgery: Refractive results and complications

O'Driscoll, A; Goble, R R; Hallack, George N.; Andrew, N C

doi:10.1038/eye.1994.133

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…Suture 'cheese wiring' into the anterior chamber during and after surgery was not a frequent complication in canaloplasty, possibly resulting from the underestimated tensile strength of the TM. We did not find any difference in the frequency of cheesewiring between the 6-0 and 10-0 Prolene group, thereby indicating that neither the thickness nor the elasticity of Prolene sutures 36,37 may be relevant for this adverse event.…”

Section: Discussionmentioning

confidence: 75%

Comparing two tensioning suture sizes for 360° viscocanalostomy (canaloplasty): a randomised controlled trial

Grieshaber

Pienaar

Olivier

et al. 2010

Eye

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Purpose To compare the safety and efficacy of two polypropylene (Prolene) sutures for tensioning of the inner wall of Schlemm's canal (SC) in black African patients with primary open-angle glaucoma (POAG) undergoing canaloplasty. Methods In a prospective randomised trial of 90 patients, canaloplasty was performed with a flexible microcatheter (iTrack-250A) and sodium hyaluronidate 1.4% (Healon GV). After complete circumferential dilatation of the SC, a Prolene suture, either 6-0 Prolene (group 1) or 10-0 Prolene (group 2), was retracted through the SC and tightened leaving tension on the canal and trabecular meshwork. Nd:YAG laser goniopuncture was not performed postoperatively. Results The mean preoperative intraocular pressure (IOP) was 42.7 mm Hg±12.5 (SD) in group 1 and 45.0 mm Hg ± 12.1 (SD) in group 2 (P ¼ 0.70). The mean postoperative IOP without medications was 18.4 mm Hg ± 7.1 (SD) in group 1 and 16.4 mm Hg ± 6.6 (SD) in group 2 at 1 month (P ¼ 0.10), 19.2 mm Hg±6.4 (SD) in group 1 and 16.4 mm Hg±4.9 (SD) at 15 months (P ¼ 0.04). Pressures equal or less than 21, 18, and 16 mm Hg without medications (complete success) at 12 months were 51.0% (95% confidence interval (CI) 0.35-0.73), 34.1% (95% CI 0.21-0.56), and 21.2% (95% CI 0.11-0.42) in group 1, and 76.9% (95% CI 0.62-0.96), 68.8% (95% CI 0.54-0.89), and 53.6% (95% CI 0.38-0.76) in group 2, respectively. In the Cox regression analysis, IOP o18 mm Hg without medications depended significantly on the type of Prolene (hazard ratio (HR) 2.60, 95% CI 1.24-5.46, P ¼ 0.01) and age (HR 1.3, 95% CI 1.03-1.86, P ¼ 0.03), but not on preoperative IOP (HR 1.01, 95% CI 0.99-1.04, P ¼ 0.16) and gender (HR 0.67, 95% CI 0.34-1.33, P ¼ 0.26). No filtering bleb was observed. Intra-and postoperative complications were similarly rare in the two groups and included partial 'cheese-wiring' (2), Descemet's rupture (2), and hyphaema (3). Conclusions In this clinical trial, IOP reduction was substantial in canaloplasty and slightly greater in combination with 10-0 Prolene than 6-0 Prolene sutures at an equally low complication rate. Younger age, but not the level of IOP at surgery, had a positive effect on the amount of IOP reduction, thus suggesting that an early surgical intervention to re-establish physiological outflow offers the best prognosis.

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Section: Discussionmentioning

confidence: 75%

Comparing two tensioning suture sizes for 360° viscocanalostomy (canaloplasty): a randomised controlled trial

Grieshaber

Pienaar

Olivier

et al. 2010

Eye

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“…The immediate postoperative astigmatism and its subsequent changes are affected by factors such as the surgical technique, type of suture used, and experience of the surgeon. [1][2][3]13 Cataract surgery in children, with or without anterior vitrectomy, can be done through small limbal incisions. 14 For IOL implantation, the incision must be enlarged in accordance with the diameter of the lens to be implanted.…”

Section: Commentmentioning

confidence: 99%

Changes in Astigmatism After Congenital Cataract Surgery and IntraocularLens Implantation

Spierer

Bar-Sela²

2004

Arch Ophthalmol

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To evaluate the postoperative changes in astigmatism in the pseudophakic eyes of children who underwent 1 of 3 different types of surgical incisions for congenital cataract extraction with intraocular lens implantation, and in whom astigmatism of at least 3 diopters (D) was recorded 1 week after the operation. Methods: We retrospectively reviewed the medical records of all the children in our department who had undergone surgery for nontraumatic cataract between 1992 and 2001. Cataract surgery with intraocular lens implantation was performed using 1 of 3 types of surgical incisions: a limbal incision, a scleral tunnel, or a clear corneal incision allowing the use of a foldable intraocular lens. In 28 children (32 eyes) aged 2 months to 11 years (mean±SD, 4.7 ± 3.4 years), astigmatism of 3 D or more was found when assessed 1 week after surgery. The refraction was measured and recorded again 3 months and 5 months after surgery. The paired t test was used to compare the outcome variables. Main Outcome Measures: Refractive error 1 week, 3 months, and 5 months after surgery. Results: Mean ± SD astigmatism 1 week postoperatively was 5.8±2.2 D, 5.1±2.1 D, and 4.0±1.3 D in groups 1, 2, and 3, respectively. Thereafter, the astigmatic component of the refractive error underwent a spontaneous decline, reaching mean±SD values of 0.9±1.0 D, 1.6±1.6 D, and 1.0±0.8 D, respectively, in the 3 groups 5 months after the operation. The difference between the mean values at 1 week and at 5 months in each group was statistically significant (P Ͻ .001 in group 1; P =.01 in group 2; and PϽ.001 in group 3). Conclusion: Children who underwent extraction of congenital cataract and intraocular lens implantation by different surgical techniques showed a significant spontaneous reduction in astigmatism postoperatively.

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“…[1][2][3]13 Cataract surgery in children, with or without anterior vitrectomy, can be done through small limbal incisions.…”

Section: Discussionmentioning

confidence: 99%

Astigmatism outcomes of scleral tunnel and clear corneal incisions for congenital cataract surgery

Bar-Sela

Spierer

2005

Eye

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Purpose To evaluate astigmatism outcomes after congenital cataract surgery with intraocular lens implantation using clear corneal or scleral tunnel incisions. Methods We retrospectively reviewed the medical records of 46 children (67 eyes), aged 2 months to 12 years, who had undergone nontraumatic cataract extraction and intraocular lens implantation between 1996 and 2001, using a scleral tunnel incision (group 1), or a clear corneal incision (group 2). Refractive astigmatism was measured at 1 week, 3 months, and 5 months after surgery. Paired t-test was used to compare those variables, and Spearman's correlation was used to determine their relation to patient's age. Results Mean7SD astigmatism at 1 week postoperatively was 3.172.8 Diopter (D) and 2.171.7 D in groups 1 and 2, respectively. It significantly reduced to 1.171.2 D and 0.971.0 D, respectively, in the two groups at 5 months postoperatively (Po0.007). In both groups patients' age was significantly correlated with 1-week postoperative astigmatism (group 1: r ¼ 0.64; P ¼ 0.001; group 2: r ¼ À0.58; P ¼ 0.003), and with the change in cylinder magnitude between 1 week and 3 months postoperatively (group 1: r ¼ À0.67; P ¼ 0.001; group 2: r ¼ 0.50; P ¼ 0.013). Conclusion Children who underwent congenital cataract surgery using clear corneal or scleral tunnel incisions showed high postoperative astigmatism at 1 week postoperatively, which spontaneously reduced during 5 months follow-up. Therefore, suture removal is not necessary in those cases.

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A prospective, controlled study of a 9/0 elastic polypropylene suture for cataract surgery: Refractive results and complications

Cited by 8 publications

References 10 publications

Comparing two tensioning suture sizes for 360° viscocanalostomy (canaloplasty): a randomised controlled trial

Comparing two tensioning suture sizes for 360° viscocanalostomy (canaloplasty): a randomised controlled trial

Changes in Astigmatism After Congenital Cataract Surgery and IntraocularLens Implantation

Astigmatism outcomes of scleral tunnel and clear corneal incisions for congenital cataract surgery

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