Single-piece foldable acrylic intraocular lens implantation in the sulcus in eyes with posterior capsule tear during phacoemulsification

PURPOSE: To evaluate early and late period results of the implantation of single-piece foldable acrylic intraocular lens (IOL) in the sulcus in eyes developing a posterior capsule tear (PCT) during phacoemulsification (PE). SETTING: S.S.K. Vakif Gureba Training Hospital Eye Clinic, Istanbul, Turkey. METHODS: This prospective and noncomparative study consisted of 89 eyes of 88 patients in which PCT developed, with or without vitreous loss, and that were followed up for at least 1 year. The IOL was implanted in the sulcus in all eyes with sufficient capsule support. Postoperative best corrected visual acuity (BCVA), anterior segment biomicroscopy, intraocular pressure (IOP), IOL centralization, and fundus were analyzed. RESULTS: Temporary corneal edema, the most frequently observed cause of reduced vision in the early period, appeared in 33 eyes; high IOP in 17 eyes; anterior chamber inflammatory reaction in 5 eyes; clinical cystoid macular edema in 7 eyes; and retinal detachment in 1 eye. The IOL was decentered in 4 eyes and dislocated in 1 eye. Repositioning was performed in 2 eyes. No IOL was removed. In the early period, BCVA was 5/10 and above in 41 eyes; the final BCVA was 4/10 and below in 16 eyes and of 5/10 and above in 73 eyes. CONCLUSIONS: The implantation of foldable acrylic IOL in the sulcus in eyes developing posterior capsule tear during phacoemulsification surgery maintains the advantages of a small incision. Postoperative visual results were good, complications were few, and IOLs were centered.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同丙烯酸材料的人工晶状体对后发性白内障的影响

目的 探讨三种不同的丙烯酸材料的人工晶状体应用于白内障超声乳化吸除联合人工晶状体植入术后对后发性白内障的影响作用.方法 超声乳化白内障吸除联合人工晶状体植入术的960例白内障患者(964只眼),Sensar组310只眼,Acrysof三片组332只眼,Acrysof一片组322只眼,术后定期随访18～28个月,观察视力、后发性白障的发生情况.结果 术后随访24月时,发生1级以上后囊膜混浊SensarIOL组的发生率(13.5%),明显高于Acrysof一片式IOL组及Acrysof三片式IOL组的发生率(7.5%,3.7%).经卡方检验,P值均<0.05,有显著性差异,而Acrysof三片式IOL组后囊膜混浊的发生率较Aerysof 一片式IOL组高,P<0.05.结论 AcrySof丙烯酸式一片式人工晶状体植入后出现后发性白内障的发生率在三组中最低.可以减少后发性白内障的发生降低Nd:YAG激光的使用率,提高手术效果,是现代白内障手术可选择的理想的人工晶状体.     

不同设计人工晶状体植入术后3年后囊膜混浊的研究

目的研究不同材料和不同设计的人工晶状体植入术后3年的后囊膜混浊(posterior capsular opacification,PCO)发生率及PCO形态。方法回顾性研究132眼老年性白内障患者,由同一医生进行超声乳化联合人工晶状体(in-traocular lens,IOL)植入术,根据IOL的不同分为4组:Storz Hydroview H60M组(33眼),Silicone折叠式硅胶IOL组(29眼),AcrySof三片式IOL组(36眼)和聚甲基丙稀酸甲酯(poly-methyl methacrylate,PMMA)组(34眼)。术后3年随访患眼的最佳矫正视力(best corrected visual acuity,BCVA),扩瞳后采集PCO数码图像,分析不同IOL组PCO的形态及PCO发生率。结果各种IOL的PCO形态各异,H60M组和AcrySof组分别有10眼和15眼后囊形成皱折,而Silicone和PMMA组为片状混浊。虽然各组BCVA和BCVA下降率差异没有显著性(P>0.05),但PCO发生率差异有非常显著性,分别是AcySof组5.6%,Silicone组30.3%,H60M组31%和PMMA组55.9%。结论AcrySof疏水丙烯酸酯三片式折叠IOL,有直角边缘设计,术后3年能明显降低PCO的发生。     

Posterior capsule opacification after phacoemulsification: foldable acrylic versus poly(methyl methacrylate) intraocular lenses

PURPOSE: To study the effects of foldable acrylic and poly(methyl methacrylate) (PMMA) intraocular lens (IOL) implantation on posterior capsule opacification (PCO). SETTING: Department of Ophthalmology, Dokuz Eylül University School of Medicine, Izmir, Turkey. METHODS: This consecutive series comprised 157 eyes having phacoemulsification with implantation of a foldable acrylic IOL with rectangular optic edges and a 5.5 mm optic (AcrySof) (n = 80 eyes) or a PMMA IOL with rounded optic edges and 5.5 mm optic (n = 77). Evaluated were incidence, location, and degree of PCO. Mean postoperative follow-up was 17.8 months +/- 1.7 (SD) (range 16 to 22 months). RESULTS: Posterior capsule opacification occurred in 8.7% of eyes in the foldable acrylic IOL group and in 24.7% of eyes in the PMMA IOL group. The difference between the 2 groups was statistically significant (P < .01). Centrally located PCO was significantly lower in the acrylic group (P < .01). There were 3 eyes with severe PCO in the PMMA group and none in the acrylic group. Anterior capsule contraction and fibrosis were present in 4 eyes in the PMMA group but none in the acrylic group. Soemmering's ring cataract formation was detected in 3 eyes, all with the AcrySof IOL. CONCLUSION: In addition to its optic material and rectangular optic edges, the AcrySof IOL provides additional advantages in lowering the incidence of PCO compared with rounded-edge PMMA IOLs.     

Comparison of sulcus implantation of single-piece hydrophilic foldable acrylic and polymethylmethacrylate intraocular lenses in eyes with posterior capsule tear during phacoemulsification surgery

PURPOSE: To compare the results of sulcus implantation of acrylic and poly(methylmethacrylate) (PMMA) intraocular lens (IOL) in eyes with posterior capsule tear during phacoemulsification surgery. METHODS: In all eyes a posterior capsule tear developed during phacoemulsification surgery and an IOL to the ciliary sulcus was implanted primarily. A total of 89 eyes of 88 patients received hydrophilic foldable acrylic IOL (acrylic group). A total of 72 eyes of 72 patients received PMMA IOL (PMMA group). The mean age was 67.1 years and 68.1 years and postoperative follow-up period was 19.2 months and 17.9 months in acrylic and PMMA groups, respectively. RESULTS: Temporary corneal edema appeared in 33 eyes and 26 eyes, elevation of intraocular pressure in 17 eyes and 12 eyes, anterior chamber inflammatory reaction in 5 eyes and 5 eyes, clinical cystoid macular edema in 7 eyes and 12 eyes, and decentered IOL in 4 eyes and 3 eyes in acrylic and PMMA groups, respectively. Late postoperative endophthalmitis developed in two eyes of the PMMA group. Rhegmatogenous retinal detachment developed in one eye in each group. Final best-corrected visual acuities were 5/10 and above in 73 eyes (82.02%) in the acrylic group and 5/10 and above in 42 eyes (58.33%) in the PMMA group. Postoperative final induced astigmatism was 0.5+/-0.5 D (SD) in the acrylic group and 1.11+/-0.65 D (SD) in the PMMA group (p=0.0001) (independent samples t-test). CONCLUSIONS: Increased astigmatism is more frequently seen in the PMMA group. The implantation of foldable acrylic IOL in the sulcus after posterior capsule tear maintains the advantages of small incision surgery.     

Management of large traumatic zonular dialysis with phacoemulsification and IOL implantation using the capsular tension ring

PURPOSE: To report our results and to evaluate the longterm effect of capsular tension ring (CTR) insertion in eyes with large traumatic zonular dialysis that underwent phacoemulsification with posterior chamber (PC) intraocular lens (IOL) implantation. METHODS: This prospective study included 17 eyes of 17 consecutive patients with cataract and large traumatic zonular dialysis (range 80-160 degrees determined pre-or intraoperatively). After insertion of a CTR, phacoemulsification with foldable acrylic PC IOL implantation was performed. Posterior capsule rupture, vitreous loss, best corrected visual acuity (BCVA), intraocular pressure (IOP) in the pre- and postoperative periods and postoperative IOL decentration were recorded. RESULTS: The mean follow-up period was 25.9 months (range 15-35 months). Capsule collapse did not occur in any eye with a CTR. Postoperatively, four eyes developed raised IOP that responded well to medical therapy. An improvement in BCVA was observed in all eyes except one because of co-existing fundus pathology. No IOL was found to be decentrated at the end of the follow-up period, apart from one eye in which the PC IOL was dislocated due to a postoperative trauma, in which an anterior chamber IOL was implanted. CONCLUSIONS: In cases of cataract associated with large traumatic zonular dialysis, implanting a CTR before or during phacoemulsification with an in-the-bag PC IOL is relatively safe technique with a high success rate. The CTR was found to be efficient in preventing IOL decentration in eyes with traumatic zonular deficiency.     

Phacoemulsification in posterior polar cataract: does size of lens opacity affect surgical outcome?

Background: To study the effect of size of the posterior polar opacity on surgical and visual outcome of phacoemulsification in posterior polar cataract. Setting: Post Graduate Institute of Medical Education and Research, Chandigarh, India. Methods: Consecutive patients with posterior polar cataract who underwent phacoemulsification were analysed for intraoperative complications and postoperative outcome. The continuous curvilinear capsulorhexis size was kept approximately 5.5 mm, and hydrodelineation was done instead of hydrodissection. Results: There were 58 eyes of 51 patients who underwent phacoemulsification for posterior polar cataract. The mean follow‐up time was 15.4 months (range 12–40 months). Twenty‐three eyes had size of polar opacities 4 mm or more in diameter whereas 35 eyes had less than 4 mm. Posterior capsule rupture occurred in nine eyes (15.51%). In eyes with polar opacities 4 mm or more, seven (30.43%) had posterior capsule rupture whereas in eyes with less than 4 mm size, only two (5.71%) had posterior capsule rupture. Capsular bag placement of intraocular lens (IOL) was achieved in 50 eyes and sulcus‐sulcus in eight eyes. Three‐piece hydrophobic acrylic IOL was implanted in 47 eyes and all polymethylmethacrylate IOL in 11 eyes. Postoperatively best‐corrected visual acuity of 6/12 or better was achieved in 55 eyes (94.8%) and three eyes achieved 6/24 or less. Conclusion: Phacoemulsification in eyes with larger size of polar opacity has significant risk of posterior capsule rupture.     

两种AcrySof折叠式人工晶体植入后囊膜混浊的临床研究

目的：观察两种设计不同的AcrySof丙烯酸酯折叠式人工晶体(intraocular lens,IOL)对晶状体后囊膜混浊(posterior capsule opacification,PCO)的影响。方法：114例(114只眼)随机分为两组(1)试验组：59例(59眼)，植入一体式AcrySof折叠式IOL。(2)对照组：55例(55眼)，植入三体式AcrySof折叠式IOL。术后半年散大瞳孔观察Soemmering环和PCD情况。结果：瞳孔区PCD，试验组4只眼(6．8％)，混浊多为轻微皱褶。对照组11只限(20％)，试验组PCD明显少于对照组，差异有显著意义(P＜0．05)。两组术后Soemmering环边界均清晰而试验组更加明显，且撵周也形成明显的细胞增殖区。结论：一体式AcrySof折叠IOL具有独特设计的襻使晶状体后囊膜皱褶大为减少，远期PCO明显下降。     

Cumulative probability of neodymium: YAG laser posterior capsulotomy after phacoemulsification

PURPOSE: To retrospectively analyze the cumulative probability of neodymium:YAG (Nd:YAG) laser posterior capsulotomy after phacoemulsification and to evaluate the risk factors. SETTING: Ando Eye Clinic, Kanagawa, Japan. METHODS: In 3997 eyes that had phacoemulsification with an intact continuous curvilinear capsulorhexis, the cumulative probability of posterior capsulotomy was computed by Kaplan-Meier survival analysis and risk factors were analyzed using the Cox proportional hazards regression model. The variables tested were sex; age; type of cataract; preoperative best corrected visual acuity (BCVA); presence of diabetes mellitus, diabetic retinopathy, or retinitis pigmentosa; type of intraocular lens (IOL); and the year the operation was performed. The IOLs were categorized as 3-piece poly(methyl methacrylate) (PMMA), 1-piece PMMA, 3-piece silicone, and acrylic foldable. RESULTS: The cumulative probability of capsulotomy after cataract surgery was 1.95%, 18.50%, and 32.70% at 1, 3, and 5 years, respectively. Positive risk factors included a better preoperative BCVA (P =.0005; risk ratio [RR], 1.7; 95% confidence interval [CI], 1.3-2.5) and the presence of retinitis pigmentosa (P<.0001; RR, 6.6; 95% CI, 3.7-11.6). Women had a significantly greater probability of Nd:YAG laser posterior capsulotomy (P =.016; RR, 1.4; 95% CI, 1.1-1.8). The type of IOL was significantly related to the probability of Nd:YAG laser capsulotomy, with the foldable acrylic IOL having a significantly lower probability of capsulotomy. The 1-piece PMMA IOL had a significantly higher risk than 3-piece PMMA and 3-piece silicone IOLs. CONCLUSIONS: The probability of Nd:YAG laser capsulotomy was higher in women, in eyes with a better preoperative BCVA, and in patients with retinitis pigmentosa. The foldable acrylic IOL had a significantly lower probability of capsulotomy.     

后极性白内障超声乳化吸除及折叠型人工晶状体植入术的临床观察

目的：探讨小切口超声乳化治疗后极性白内障的手术技术以及术中、术后并发症的处理方法。方法：46例患者(61只眼)，年龄38-78岁，平均57岁。在表麻下行颈侧透明角膜隧道切口的超声乳化，并对后囊下混浊斑块行剥离吸除、环形撕后囊或剪除混浊的后囊及折叠型人工晶状体植入术。结果：51只眼后囊膜完整，其中6只眼有后囊膜混浊；在10只后囊膜破裂眼中，4只眼有玻璃体脱出需行前段玻璃体切割术，并有1只眼晶状体皮质软壳沉入玻璃体腔引起葡萄膜炎及继发性青光眼需再次行后段玻璃体切割。58只眼人工晶状体囊袋内固定，3只眼睫状沟固定。结论：对后极性白内障行超声乳化手术时，谨慎处理后囊下混浊斑块，可以减少术中、术后的并发症，明显提高患者的术后视力。眼科学报2003；19：92-94