Effect of suture material on postoperative astigmatism
| Autor: | Maryclare DeLuca, Marsha G. Raanan, Howard V. Gimbel |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Adult
Male medicine.medical_specialty Polyesters medicine.medical_treatment Visual Acuity Intraocular lens Cataract Extraction Polypropylenes Decay curve Postoperative Complications Suture (anatomy) medicine Humans Prospective Studies ATR astigmatism Prolene Aged Aged 80 and over Lenses Intraocular Sutures Nylon sutures Polyethylene Terephthalates business.industry Astigmatism Middle Aged Sensory Systems Surgery Postoperative astigmatism Nylons Ophthalmology Female Surgically induced astigmatism business Follow-Up Studies |
| Zdroj: | Journal of Cataract and Refractive Surgery. 18:42-50 |
| ISSN: | 0886-3350 |
| DOI: | 10.1016/s0886-3350(13)80382-3 |
| Popis: | Two hundred patients were enrolled in a randomized, prospective clinical trial comparing the use of 10-0 nylon, 10-0 polypropylene (Prolene), 11-0 polyester (Mersilene), and 10-0 polyethylene (Novafil) suture materials on the amount and decay curves of surgically induced astigmatism following intraocular lens (IOL) surgery. Patients with Mersilene and nylon sutures had the highest amounts of induced with-the-rule (WTR) cylinder (significantly more than Prolene) at one day after surgery. However, the WTR cylinder decayed rapidly for nylon during the first three months but more slowly for Mersilene because of its lack of stretchability. The Prolene group had the lowest level of induced WTR cylinder at one day, but against-the-rule (ATR) drift occurred, leaving cases with ATR astigmatism by a year. The nylon group had the second highest amount of induced WTR cylinder at one day, which had decayed to ATR cylinder by five months. Between one and two years postoperatively, the nylon group experienced a significant ATR shift. The amount of early induced WTR cylinder seemed to be related to the knot-tying technique and tissue gripping characteristics, whereas the shape of the decay curve was related to the material characteristics of the suture. |
| Databáze: | OpenAIRE |
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