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Query: UMLS:C0086543 (cataract)
 29,165 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An improved synthetic absorbable suture for ophthalmic surgery, 8-0 Dexon "S" polyglycolic acid, was evaluated in 25 cataract extractions and, in 5 cases, compared with 8-0 Vicryl polyglactin sutures. Dexon "S" sutures caused less tissue drag than Vicryl sutures; Vicryl was more easily knotted. With respect to handling, knotting, tissue drag, absorption, and postoperative complications, the improved Dexon suture was found to be well suited for use in cataract surgery.
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PMID:Evaluation of an improved suture for cataract surgery. 43 45

This study describes the operative and postoperative performance of 9-0 monofilament and 9-0 braid Polyglactin 910 synthetic absorbable sutures in cataract surgery. The evaluation represents a clinical comparison of the sutures in 150 cataract surgical procedures. In a comparative evaluation each suture provided specific performance advantages: (table: see text). To date, the 9-0 monofilament and 9-0 braid Polyglactin 910 sutures are the smallest useful absorbable sutures developed for cataract surgery. While these sutures seem safe for use with phacoemulsification as sole wound closure materials, we recommend the use of nylon stints for intracapsular and extracapsular procedures until further experience is gained.
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PMID:A comparative evaluation of 9-0 monofilament and 9-0 braid polyglactin 910 in cataract surgery (intracapsular, extracapsular, and phacoemulsification). 52 64

In a controlled, randomized trial in 45 cataract operations a new synthetic absorbable suture (8-0 monofilament Vicryl, made by Ethicon), was compared with monofilament nylon or virgin silk normally used. There was a higher incidence of early complications-hyphaema, shallow anterior chamber, and choroidal detachment (15-4 per cent v. 0 per cent)-with the absorbable suture. But these differences were not significant at the 0-05 level and might well disappear with more operative experience, particularly the modified technique of knot-tying. In handling qualities Vicryl was superior to both 10-0 monofilament nylon and 8-0 virgin silk with the exception of knot-tying, in which it was inferior to 8-0 virgin silk. Vicryl is considered to be a useful absorbable suture in cataract surgery but knot-tying requires modification of technique.
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PMID:Vicryl (polyglactin 910) in cataract surgery. A controlled trial. 78 10

This study describes the operative and postoperative performance of 8-0 Polyglactin 910 in cataract surgery. The evaluation represents a clinical comparison of 7-0 Polyglactin 910 to the same suture in 8-0 size in 155 cataract surgical procedures. In 45 cases, 8-0 Polyglactin 910 was the sole wound closure material used. 8-0 Polyglactin 910 provided high tensile strength, good knot security, batch-to-batch uniformity, ease of handling, minimal reaction, and a predictable absorption rate that was virtually completed in 33 days. When compared to 7-0 Polyglactin 910, 8-0 produced less tissue drag, fibrillation, and reaction. Early in our series, three cases of wound dehiscence occurred. One was caused by trauma and the other two by 8-0 Polyglactin 910 cutting through tissue. This study's conclusion stresses avoiding the tendency of tying the knot too tightly to prevent suture pull-out.
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PMID:An evaluation of 8-0 Polyglactin 910 synthetic absorbable suture in cataract surgery. 93 1

The new synthetic absorbable suture, Polyglactin 910, represents a significant step toward absorbable suture perfection. In 218 cataract surgical procedures, the performance of Polyglactin 910 was compared to that of Chromic Catgut and Chromic Collagen. The results obtained in this series of cases is the basis for this article. When compared to Chromic Catgut and Chromic Collagen, Polyglactin 910 consistently provided greater tensile strength, improved handling, significantly decreased tissue reaction, more batch-to-batch uniformity, superior wound tensile strength retention, and a predictable absorption rate that is virtually completed in 35 days. Both nonprotein and nonantigenic, Polyglactin 910 evoked less tissue reaction and proved more versatile and reliable than either of the other sutures.
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PMID:The evaluation of 7-0 Polyglactin 910 suture in cataract surgery. 110 25

The results of 64 operations of cataract in dogs applying the operating microscope are presented in the paper. The dogs were divided into 4 groups according to the type of cataract: senile, symptomatic, diabetic and toxic. The lenses were removed with a ++cryo-extractor , Dexon and Vicryl were used for suturing. The evaluation of dogs' ability to see after cataract surgery was made on the basis of clinical examinations of vision, ophthalmoscopy and clinical tests. The results of microsurgical cryoextraction in dogs were positive as far as senile and symptomatic cataracts were concerned. No positive results were obtained in the case of diabetic cataract because of existing retinopathy and in toxic cataract where retinal atrophy caused by intoxication occurred. Cataract surgery does not lead to a complete return of vision since the eye is aphakic and hypermetropic. However, it permits the dog to use its sense of vision for orientation in the environment.
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PMID:Clinical value of microsurgical cataract surgery in dogs by cryoextraction method. 213 47

Hypotony after fistulizing surgery is common, and most cases resolve without complications. Occasionally, a flat anterior chamber in phakic or pseudophakic eyes may lead to corneal decompensation or cataract formation. In aphakic eyes that have undergone previous vitreous surgery, flat anterior chambers will not develop, but large choroidal detachments and delayed suprachoroidal hemorrhage may occur while the eye is soft. To maintain intraocular pressure (IOP) in the early postoperative period, the authors used a technique to seal the drainage tube with a Vicryl tie, combined with injection of sodium hyaluronate, sulfur hexafluoride (SF6), or perfluoropropane (C3F8), perioperatively in 28 eyes undergoing glaucoma tube implant surgery. Eight eyes were treated with injection of sodium hyaluronate, 8 with SF6, and 12 eyes with C3F8. Hypotony was significantly less frequent in eyes treated with C3F8 compared with sodium hyaluronate (P less than 0.05). Mean IOP was significantly higher for eyes treated with C3F8 injection compared with sodium hyaluronate for the first 4 days after surgery (P less than 0.05).
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PMID:Injection of perfluoropropane gas to prevent hypotony in eyes undergoing tube implant surgery. 238 4

In 115 consecutive cataract extractions with implantation of artificial lens a clinical evaluation of absorbable sutures--polyglactin (910) (Vicryl 7-0) and polyglycolic acid (Dexon 8-0)--in corneolimbal incision has been performed. The corneolimbal wounds were closed by continuous suture technique with one double loop knot at the 12 o'clock and 5-6 loops on each side of the 12 o'clock knot. The suture had disappeared after 8 weeks in 95% of the eyes. Two months after operation the visual acuity, the power of corneal astigmatism and astigmatic orientation remained unchanged in both the Vicryl and the Dexon sutured group. This provided effectuation of early full prescription of glasses. Most complications in this material were suture independent and appeared during the early postoperative period. In only one eye inadequate wound closure was noticed. Shallow anterior chamber and hypotonia of short duration occurred in 5 eyes. Four of these patients developed corneal dystrophy. In the Vicryl sutured group suture reactions took place in 87% of the eyes. With dexon suture no such reaction appeared. The use of absorbable sutures in corneolimbal incision technique implies several surgical advantages and is seemingly safe.
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PMID:Absorbable sutures (Dexon and Vicryl) in the corneolimbal incision. Used in lens implantation surgery. 625 Mar 15

This study describes the intraoperative and postoperative performance of coated and uncoated Polyglactin 910 in cataract and muscle surgery. The evaluation represents an animal and clinical comparison of 5-0 coated and uncoated Polyglactin 910 in 50 muscle cases and 7-0 coated and uncoated Polyglactin 910 in 150 cataract cases. Both Polyglactin 910 sutures provided high tensile strength, good knot security, batch-to-batch uniformity, ease of handling, minimal reaction, and a predictable absorption rate. Improvements noted in the coated suture were: (1) easier passage through tissue, (2) less chatter in tying, (3) fewer instances of premature tie, and (4) decreased tendency to incarcerate tissue.
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PMID:Comparative evaluation of coated and uncoated polyglactin 910 in cataract and muscle surgery. 700 99