Oshika T, Tsuboi S
Division of Ophthalmology, Tokyo University Branch Hospital, Japan.
Ophthalmic Surg. 1995 Jul-Aug;26(4):309-15.
We assessed the timing of astigmatic and refractive stabilization following six cataract surgery procedures with intraocular lens implantation in 229 eyes divided into six groups in the following incision sizes and methods of wound closure: 11-mm incision with running suture closure (26 eyes) 6.5-mm incision with running suture closure (29 eyes) 6.5-mm incision with single horizontal suture closure (25 eyes) 6.5-mm incision without suture closure (46 eyes) 5.5-mm incision without suture closure (51 eyes) 3.2-mm incision without suture closure (52 eyes) Analyzed up to 6 months postoperatively were: the mean and standard deviation of axis-based keratometric cylinders the absolute value of the induced-cylinder vector the spherical equivalent of the refractive power. In the 11- and 6.5-mm incision running suture groups, these parameters did not stabilize during the study period. In the 6.5-mm incision horizontal suture and sutureless groups, the values stabilized at 3 months postoperatively; in the 5.5-mm incision group, at 1 month; and in the 3.2-mm incision group, at 2 weeks. These results indicate that the appropriate point at which to prescribe postoperative correction spectacles differs significantly depending on the procedure, and that smaller incisions with wound-closure methods that do not exert vertical force are associated with fewer postoperative refractive changes.
我们评估了229只眼睛在接受六种白内障手术并植入人工晶状体后散光和屈光稳定的时间，这些眼睛被分为六组，采用以下切口大小和伤口闭合方法：11毫米切口连续缝合（26只眼）；6.5毫米切口连续缝合（29只眼）；6.5毫米切口单水平缝合（25只眼）；6.5毫米切口不缝合（46只眼）；5.5毫米切口不缝合（51只眼）；3.2毫米切口不缝合（52只眼）。术后长达6个月进行分析的指标包括：基于轴的角膜曲率计柱镜的平均值和标准差、诱导柱镜矢量的绝对值、屈光力的球镜等效值。在11毫米和6.5毫米切口连续缝合组中，这些参数在研究期间未稳定。在6.5毫米切口水平缝合和不缝合组中，这些值在术后3个月稳定；在5.5毫米切口组中，在1个月时稳定；在3.2毫米切口组中，在2周时稳定。这些结果表明，根据手术方式不同，开具术后矫正眼镜的合适时间点有显著差异，并且较小的切口以及不施加垂直力的伤口闭合方法与较少的术后屈光变化相关。
