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Foldable IOL Crack and Surface Scratch in Microincision Cataract Surgery: A Report of 3 Cases

在小傷口白內障手術中折疊式人工水晶體表面的裂紋和刮痕:3個病例的報告

摘要


Purpose: To describe and evaluate surface abnormalities of AcrySof intraocular lenses (IOLs; SA60AT) that were implanted by Alcon Monarch III injector with D cartridge. Methods: This study comprised 98 eyes that underwent small-incision cataract surgery where foldable acrylic IOLs (SA60AT, Alcon) were inserted in all cases. All surgeries used the same viscoelastic agent: sodium chondroitin sulfate and sodium hyaluronate combination (Viscoat). Alcon Monarch III injector with D and C cartridges was used in 56 and 42 cases, respectively. Results: Three IOLs using D cartridge had white longitudinal lines on the anterior surface immediately after implantation. We removed one IOL during an operation because of severe while lines resembling cracks. The best-corrected visual acuity of the other two patients was 0.9 despite white lines on the surface of IOL. Conclusion: The surface abnormalities of IOL did not disappear within one month postoperatively. Although surface abnormalities might not influence the visual acuity of the two patients, severe cracks on the only removed IOL might. The cracks are probably caused by the friction in the injector cartridge D and change in viscosity of Viscoat under abnormal temperature. However, due to the small sample size and short follow-up, further research is necessary.

並列摘要


目的:報告和描述白內障手術中使用Alcon Monarch III注射器與D型植入器所引起的人工水晶體(SA60AT)表面裂紋和刮痕。方法:本研究包含了98例小切口白內障手術的眼睛,並在所有眼睛均植入了折疊式人工水晶體(SA60AT,Alcon)。所有手術均使用相同的粘彈性劑:硫酸軟骨素鈉-透明質酸鈉(Viscoat)。56例使用D型植入器和Alcon Monarch III注射器,另外42例則是使用C型植入器。結果:三個使用D型植入器的人工水晶體在晶體表面縱軸方向上都有白色刮痕線。我們在手術過程中移除了一例的人工水晶體,因為此刮痕很像裂縫而且情況較嚴重。另外兩例眼睛儘管人工水晶體表面有白線,但患者術後的最佳矯正視力可達0.9。結論:術後一個月人工水晶體表面刮痕並未消失。儘管它可能沒有影響患者的視敏度,但是我們遇到較嚴重裂紋的那位病患可能會影響視力。裂痕有可能是D型植入器內層的摩擦和在異常溫度下Viscoat粘度降低的結果。但是,由於樣本量小且只有較短的追蹤時間,有必要再進一步的研究。

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