目的：分析角巩膜缘切口与角膜切口超声乳化术对年龄相关性白内障患者术后康复的影响。

方法：选择2015-01/2017-01在我院行超声乳化术的年龄相关性白内障患者98例132眼，按手术切口位置分为角巩膜缘切口组(A组，52例74眼)与角膜切口组(B组，46例58眼)，手术前后不同时间测定两组裸眼视力、BCVA、角膜散光度的变化，统计两组上皮修复时间、切口修复时间，记录治疗前后不同时间患者BUT、泪液分泌量及角膜染色评分的变化，统计两组术后并发症发生率。

结果：两组组内、组间不同时间裸眼视力、BCVA、角膜散光度、手术源性角膜散光度、BUT、泪液分泌量、角膜染色评分均有差异(P<0.05)，A组术后不同时间裸眼视力、BCVA优于B组，角膜散光度与手术源性角膜散光度低于B组，BUT长于B组，泪液分泌量高于B组，角膜染色评分低于B组(均P<0.05)； A组术后上皮修复时间、切口修复时间均短于B组(P<0.05)； 两组术后并发症发生率无差异(P>0.05)。

结论：角巩膜缘切口下超声乳化手术可改善年龄相关性白内障患者术后视力，降低角膜散光度，减少对泪膜功能的影响，促进患者术后康复。

METHODS: Totally 98 elderly cataract patients(132 eyes)who underwent phacoemulsification in our hospital during the period from January 2015 to January 2017 were enrolled. According to surgical incision sites, they were divided into corneoscleral limbus incision group(group A, n=52 cases, 74 eyes)and corneal incision group(group B, n=46 cases, 58 eyes). The changes of uncorrected visual acuity, best corrected visual acuity(BCVA)and corneal astigmatism in both groups were measured at different time points before and after operation. The epithelial repair time and incision repair time in both groups were statistically analyzed. The changes of tear break-up time(BUT), tear secretion and corneal staining score were recorded at different time points before and after treatment. The incidence of postoperative complications was statistically analyzed.

RESULTS: There were significant differences in uncorrected visual acuity, corneal astigmatism, surgery induced corneal astigmatism, BCVA, BUT, tear secretion and corneal staining scores between the two groups and within the same group at different time points(P<0.05). The uncorrected visual acuity and BCVA in group A were superior than those in group B at different time points after operation. The corneal astigmatism and surgery induced corneal astigmatism were lower than those in group B. BUT was longer than that of group B. And tear secretion was higher than that in group, and corneal staining score was lower than that in group B(P<0.05).The epithelial repair time and incision repair time in group A were shorter than those in group B after operation(P<0.05).There was no significant difference in the incidence of postoperative complications between the two groups(P>0.05).

CONCLUSION:The phacoemulsification under corneoscleral limbus incision can improve postoperative visual acuity of elderly cataract patients, reduce the corneal astigmatism, reduce the influence on the tear film function, and promote postoperative rehabilitation.