A pilot study of intraocular lens explantation in 69 eyes in Chinese patients

AIM：To study the effects of intraocular lens（IOL） explantation and demographic characteristics.METHODS：Retrospective non-comparative case series.Clinical data recorded from patient charts included the following：demographic,preoperative and postoperative characteristics;complications;surgical methods,and changes in visual acuity.RESULTS：A total of 69 eyes in 67 Chinese patients who received IOL explants were studied.The patients＇ mean age at the time of explantation was 46.1 years old [SD 22.5（6-85）],and 37 patients were female（55.2%）.Regarding employment,47.8% were farmers,23.9% were retired,16.4% were students,4.5% were unemployed,3% were workers,and 4.5% were other（including staff members,teachers and officers）.The main reasons for explantation were dislocation/decentration in 41 cases（59.4%） and retinal detachment in 10 cases（14.5%）.The third most prevalent cause was incorrect lens power in 7 eyes（10.1%）.The remaining reasons were endophthalmitis in 6 cases（8.7%）,posterior capsular opacity in 3 eyes（4.3%）,and impacting retinal surgery operation in 2 cases（2.9%）.The main comorbidities were high myopia in 18 eyes（26.1%）,trauma in 8 eyes（11.6%）,retinal detachment in 6 eyes（8.7%）,congenital cataracts in 8 eyes（11.6%）,and Marfan＇s syndrome in 2 eyes（2.9%）.The mean time from implantation to explantation was 4.0y [SD 4.2（0.005-15）].Treatment after explantation included posterior chamber IOL implantation in 44 eyes（63.8%） and aphakia in 25 eyes（36.2%）.After surgery,the best corrected visual ability（BCVA） was improved in 50 cases（72.5%）,including 28 patients（40.6%） in whom visual ability was improved by more than two lines.CONCLUSION：Dislocation/decentration is the main cause for explantation,and high myopia is a main risk factor.Posterior chamber IOL implantation remains the most elected treatment after explantation.

Foldable Lens Explantation and Exchange: The Reason and Solution

Objective: To report the explantation and exchange of Hydrophilic Acrylic foldable intraocular lens (IOL) on 14 patients who had visual disturbances caused by the change of transparence on optic. Methods: Sixteen Hydrophilic Acrylic foldable intraocular lenses from 14 patients who presented with decreased visual acuity from 6 months to 1 year after normal phacoemulsification and IOL implantation associated with extensive transparent change on optic of the lens. The lenses were explanted with the bisection technique. All the eyes were reinserted with Acrysof foldable lenses. Results: Sixteen lenses were removed successfully and exchanged with the new lens in the capsule. The posterior capsular rupture and vitreous loss were found in the first two cases. One of them had the zonulysis due to the radial tear of the anterior capsule during the enlargement of the capsular opening. The anterior vitrectomy was performed with IOL fixed on the ciliary sulcus. The visual acuity of all the patients improved obviously without posterior complication. Conclusion: Foldable lens explantation with the bisection technique and exchange had a successful outcome with improvement of ocular condition. Eye science 2001; 17:54 ～56.

Comparison of iris-fixated foldable lens and scleralfixated foldable lens implantation in eyes with insufficient capsular support

AIM： To compare the outcomes of vision using two different intraocular lens（IOL） replacement techniques,iris-fixated foldable intraocular lens（IF-IOL） and scleralfixated foldable intraocular lens（SF-IOL） in patients with insufficient capsular support.METHODS： Total 63 eyes（62 patients） with insufficient posterior capsule support underwent replacement of IF-IOL or SF-IOL between January 2008 and August 2011.Outcome measures included changes in visual acuity, slit lamp examination, refractive indices and corneal curvatures. RESULTS： The mean improvement of uncorrected visual acuity（UCVA） was greater in IF-IOL group compared to the SF-IOL group（0.43 D±0.19 D vs 0.35 D±0.18 D, P 〈0.05）. Moreover, 12（38.71%） eyes in IF-IOL group and 4（12.50%） in SF-IOL group had a higher postoperative UCVA than preoperative best corrected visual acuity（BCVA） while 9（29.03%） eyes in IF-IOLgroup and 18（56.25%） in SF-IOL group had a lower postoperative UCVA than preoperative BCVA. The myopic mean manifest sphere and mean cylinder magnitude were lower in the IF-IOL group than that in the SF-IOL group（-0.47 D±0.58 D vs 0.50 D±0.43 D, P 〈0.01; 0.84 D ±0.53 D vs 1.23 D ±0.70 D, P 〈0.05）. No difference of corneal astigmatism and surgically induced astigmatism was found between the two groups. In addition, fewer complications were observed in IF-IOL eyes. CONCLUSION： IF-IOL implantation can give a significant improvement in vision with fewer complications than SF-IOL in patients with insufficient capsular support.

Visual performance after implantation of two types of phakic foldable intraocular lenses for correction of high myopia

AIM: To compare Visian lens(model V4 c) and Artiflex lens regarding quality(contrast sensitivity) and quantity(efficacy, predictability, safety and stability) of vision in correcting high myopia with recording and analysis of complications. METHODS: The comparative prospective study included 39 eyes of 23 patients with high myopia, 19 eyes had Visian lens implantation(model V4 c) and 20 eyes had Artiflex lens implantation. The inclusion criteria were high myopia(higher than 6.0 D) and stable refraction(<0.5 D change over one year). Outcomes included assessment of safety and efficacy indices, predictability, stability, contrast sensitivity and analysis of complications at postoperative 1 d, 1 wk and 1, 3, 6 and 12 mo. Selection of the type of phakic intraocular lens for patients was based on surgeons' preferences, which was no specific selection criteria. RESULTS: After 12 mo of follow up, difference in uncorrected and corrected distant visual acuity(CDVA) between both groups was statistically insignificant(UDVA for VisianV4 c and Artiflex lens were 0.33±0.2 logMAR and 0.37±0.2 logMAR respectively, P=0.59, CDVA for VisianV4 c and Artiflex lens were 0.155±0.1 logMAR and 0.147± 0.1 logMAR respectively, P=0.87). The efficacy index was 1.25 for VisianV4 c lens and 0.8 for Artiflex lens, 78.9% of eyes were within one diopter spherical equivalent in Visian V4 c lens group compared to 70% in the Artiflex lens group. No eye lost lines of CVDA proving a good safety index for both lenses(safety index was 1.67 for VisianV4 c lens and 1.34 for Artiflex lens). Difference in contrast sensitivity between both groups was statistically insignificant(P=0.15, 0.88, 0.27, 0.32 and 0.82 at five spatial frequencies). CONCLUSION: Both Visian ICL V4 c and Artiflex lensesare safe and effective with stable and predictable refraction and they have comparable contrast sensitivity outcomes with no vision threatening complications.

Evaluation of suturless scleral fixation with posterior chamber foldable intraocular lens implantation

AIM: To assess the sutureless scleral fixation technique for posterior chamber foldable intraocular lens(PCIOL) implantation in aphakic eyes with insufficient or no capsular support. METHODS: A technique for sutureless intrascleral fixation of the haptics of a standard 3-piece PCIOL was used which ensures sutureless fixation by permanent incarceration of the haptics in a scleral tunnel parallel to the limbus. All patients were evaluated for preoperative status [visual acuity, refractive error, K readings, intraocular pressure(IOP) measurement, slit lamp examination, fundus examination and optical biometry], postoperative status and complications. Ultrasound biomicroscopy(UBM) was done for 10 cases to evaluate optic tilt. RESULTS: The study evaluated 42 eyes of 42 patients. The follow-up period was 6 mo. Improvement of best corrected visual acuity(BCVA) one line occurred in 10 cases(23.8%) and loss of one line in 3 cases(7.1%). Intraoperative complications included: haptic kink in 4 cases(9.5%), haptic breakage in 1 case(2.4%), haptic dislocation in 1 case(2.4%), haptic slippage in 3 cases(7.1%), IOL dislocation in 1 case(2.4%) and sclerotomy related bleeding in 1 case(2.4%). Postoperative complications included: transient mild vitreous hemorrhage in 3 cases(7.1%), choroidal detachment in 1 case(2.4%), cystoid macular edema(CME) in 1 case(2.4%), optic capture in 1 case(2.4%), subconjunctival haptic in 2 cases(4.8%), ocular hypotony in 4 cases(9.5%) and ocular hypertension in 1 case(2.4%). There were no cases of retinal detachment or endophthalmitis. UBM showed optic tilt in 3 cases(30%). CONCLUSION: Fixation of three-piece foldable IOL haptics in scleral tunnel parallel to the limbus-providedaxial stability and proper centration of the IOL with minimal or no tilt in most cases and a low complication rate during the follow up period which lasted 6 mo.

Out-of-the-bag intraocular lens dislocation： outcomes of posterior chamber intraocular lens exchange, risk factors, and prevention

Background Dislocation of posterior chamber intraocular lens is one of the most common complications of intraocular lens implantation. Lens exchange is an effective solution to this unsatisfactory status. This study was conducted to analyze the possible predisposing factors for out-of-the-bag posterior chamber intraocular lens dislocation and to study the outcomes of lens exchange surgery. Methods Thirty-six consecutive patients （36 eyes） with out-of-the-bag intraocular lens dislocation who underwent posterior chamber intraocular lens exchange in Zhongshan Ophthalmic Center of Sun Yat-sen University （Guangdong, China） from January 2003 to October 2009 were included. A 6-month follow-up was completed. The causes for out-of-the-bag intraocular lens dislocation and visual outcomes of posterior chamber intraocular lens exchange were analyzed. The out-of-the-bag intraocular lens dislocation was diagnosed on the basis of the findings from slit-lamp microscope and B-ultrasound. The dislocated intraocular lens was explanted. Reimplantation of a new posterior chamber intraocular lens was performed in each case using standardized surgical procedures. Results In this study, a total of thirty-six consecutive patients （36 eyes） with out-of-the-bag intraocular lens dislocation underwent posterior chamber intraocular lens exchange surgery. Causes for out-of-the-bag intraocular lens dislocation included posterior capsule rupture during the initial cataract extraction procedure （23 eyes, 63.8%）, trauma （5 eyes, 13.9%）, neodymium-doped yttrium aluminium garnet （Nd：YAG） laser-induced dislocation （2 eyes, 5.6%）, the status after vitrectomy （2 eyes, 5.6%） and unidentifiable etiology （4 eyes, 11.1%）. Symptoms of these patients mainly included decrease in visual acuity （17 cases, 47.2%）, blurred vision （16 cases, 44.4%）, glare （1 case, 2.8%）, diplopia （1 case, 2.8%）, and halo （1 case, 2.8%）. Intraocular lens dislocation into the posterior vitreous cavity （29 eyes, 80.5%）, anterior chamber （1 eye, 2.8%） and anterior vitreous cavity （6 eyes, 16.7%） was found in this series. The foldable intraocular lenses （acrylic or silicone） were explanted from 27 eyes （75%） and rigid intraocular lenses （poly methyl methacrylate, PMMA） from 9 eyes （25%）. The most common explanted intraocular lens material was single-piece acrylic （13 pieces, 36.1%）, followed by 3-piece acrylic （9 pieces, 25%）, single-piece PMMA （9 pieces, 25%）, and 3-piece silicone （5 pieces, 13.9%）. Uncorrected visual acuity postoperatively improved in 29 eyes （81%）, unchanged in 4 eyes （11%）, and worsened in 3 eyes （8%） in comparison to that before exchange operation （P=0.006）. Best corrected visual acuity tended to improve, but the improvement was not significant （P=0.206）. Complications related to lens exchange surgery were mainly intraocular lens redislocation （1 eye）, retinal detachment （1 eye）, vitreous hemorrhage （1 eye）, and cystoid macular edema （1 eye）. Conclusions Out-of-the-bag intraocular lens dislocation was mainly caused by posterior capsule rupture during the initial cataract extraction procedure and the foldable lens was the most common dislocated intraocular lens. In most cases, posterior chamber intraocular lens exchange surgery could provide satisfied final visual outcomes.

Comparison of Trans-scleral Fixation of PMMA and Foldable Intraocular Lens in Children

Purpose: To observe the difference of the effects of PMMA and foldable intraocular lenses (IOLs) trans-sclerally fixed in pediatric eyes. Methods: Thirty-two children (43 eyes) who had undergone trans-scleral fixation of IOL were retrospected, of whom 5 children were implanted PMMA IOL in both eyes, 6children were implanted PMMA IOL in one eye and foldable IOL in the other eye, 12children were implanted foldable IOL in one eye and 9 chilrden were implanted PMMA IOL in one eye. Mean age was 5.3 years ( range 2.5 ～ 12 years ). Twelve children had traumatic cataract and the others congenital cataract before lens extraction. Results: Foldable group (18 eyes ): Mean follow-up was 12.1 months. Visual acuity (VA): compared with the best corrected VA before IOL fixation, postoperative best corrected VA improved in 16 eyes, remained unchanged in 2 eyes. In 14 eyes, one or two stitches were needed to seal the incision. Complications: Severe anterior chamber reaction was seen in 3 eyes. Intraocular bleeding was found in 3 eyes. IOL decentration was detected in 1 eye. Iris capture of IOL was seen in one eye. PMMA group (25 eyes ):Mean follow-up was 20.3 months. Visual acuity (VA): compared with the best corrected VA before IOL fixation, postoperative best corrected VA improved in 19 eyes,remained unchanged in 5 eyes and got worse in one eye. In 24 eyes, one to three stitches were needed to seal the incision. Complications: Severe anterior chamber reaction was seen in 5 eyes. Intraocular bleeding was found in 4 eyes. IOL decentration was seen in one eye. Iris capture of IOL was seen in 3 eyes. Intraocular pressure elevated in one eye. Conclusion: Our study shows that trans-scleral fixation of IOL is a safe procedure in pediatric eyes. Foldable IOL showed similar effect compared with PMMA IOL in pediatric trans-scleral fixation. Eye Science 2001; 17:61 ～ 64.

Intraocular lens exchange-removing the optic intact

Current practice for intraocular lens （IOL） exchange is to cut the optic of the posterior chamber intraocular lens （PCIOL） prior to removing it. Great care must be taken during this maneuver to avoid a posterior capsular tear. Removing the haptics from the fibrosed capsule can also be hazardous, as it may result in zonular stress and dehiscence. A technique is described for performing foldable （one-piece acrylic） IOL removal without cutting the optic. Careful visco-dissection of the haptics with a low viscosity ophthalmic viscosurgical device （OVD） in the fibrosed peripheral capsular tunnel avoids zonular or capsular stress. Internal wound enlargement permits foldable IOL removal in one piece, whilst preserving a self-sealing sutureless corneal wound. This technique may enhance the safety and efficacy of foldable IOL exchange.

Application of Foldable Intraocular Lens in Multiple Types of Cataract

Objective: To evaluate the clinical results of implantation of foldable intraocular lens inmultiple types of cataract.Methods: This retrospective study comprised 162 eyes of 148 patients undergoingphacoemulsification and implantation of foldable intraocular lens, some of whom under-went combined pars plana vitrectomy or trabeculectomy or silicone oil removal. Theperiod of follow-up was from 3 months to 17 months.Results: There is slight reaction postoperatively in all cases. The postoperative uncorrectedvisual acuites was from 0. 05 to 1.2, patient with 0.6 or above acuity were 70.98%. Aneodymium: YAG capsulotomy was required in 5 eyes. Posterior capsule ruptured in 1eyes, and a PMMA intraocular lens was implanted in ciliary sulcus. In one eye, a lenswas removed because of recurrence of retina detachment.Conclusions: The application of foldable intraocular lens in multiple types of cataract issafe, and there is a slight postoperative reaction. less complications , and fast visualacuity recovery.

AcrySof phakic angle-supported intraocular lens for the correction of high to extremely high myopia:one-year follow-up results

AIM: To assess the safety, efficacy and predictability of the AcrySof phakic angle-supported intraocular lens (IOL) (Alcon Inc., U.S.A.) for correction of high-to-extremely high myopia in adults. METHODS: In this prospective study performed in Tianjin Medical University Eye Center & College of Optometry, Tianjin, China, 25 eyes of 13 patients were implanted with AcrySof phakic angle-supported IOLs and followed for 1 year postoperatively. Preoperative manifest refractive sphere was (-12.08 +/- 2.44) diopters (D) and cylinder was (-1.35 +/- 0.62)D. Visual acuity, predictability and stability of manifest refraction spherical equivalent (MRSE), adverse events, and endothelial cell density were analyzed during 1-year of follow-up. RESULTS: After 1 year of follow-up, no eyes lost 1 line (best spectacle-corrected visual acuity)BSCVA; an uncorrected visual acuity (UCVA) of 20/20 or better was achieved in 60% of eyes; 100% had an UCVA of 20/40 or better; a BSCVA of 20/30 or better was achieved by 100% of eyes; 84% had a BSCVA of 20/20 or better. The overall mean percentage change in endothelial cell density 1 year after surgery was (-0.27 +/- 3.60)%. Two eyes (8%) had increased intraocular pressure (IOP) on the day of surgery. No pupil ovalization, pupillary block, or retinal detachment events were observed. CONCLUSION: After 1 year of follow-up, the implantation of AcrySof phakic angle-supported IOL is proved to be safe, effective and predictable with minimal complications in patients with high-to-extremely high myopia. Due to the limitation of visiting time, long-term of clinical investigation is necessary to verify the safety and efficacy of this IOL.

Corneal injection track: an unusual complication of intraocular lens implantation and review

Phacoemulsification is the main gold standard for cataract operation in the developed world together with foldable intraocular lens(IOL) implantation by injection,allowing for stable wound construction and less postoperative astigmatism. It is a safe procedure with high success rate with the advancement in machines,improvement of IOL injection systems and further maturation of surgeons’ techniques. Despite the large number of operations performed every day, foldable IOL injection leading to an intra-stromal corneal track is a very rare complication. We report a case of this unusual finding in a 70-year-old gentleman who has undergone cataract operation in November 2011 in our hospital and will review on the complications related to foldable IOL injection.

后房型人工晶状体脱位的巩膜缝线固定置换术的临床应用

目的通过对巩膜缝线固定置换后房型人工晶状体(IOL)手术治疗中远期IOL脱位的手术前后比较,评价术式的临床疗效。方法回顾性病例研究。纳入2022年3月—2024年3月期间于浙江大学医学院附属第二医院行手术治疗的中远期IOL脱位患者19例(23眼),行巩膜缝线固定置换后房型IOL手术治疗。统计患者手术前后的裸眼视力(UCVA)、最佳矫正视力(BCVA)、眼压(IOP)、角膜内皮计数和术后并发症的发生率。结果经过1个月~1年的随访,患者术后的UCVA、BCVA均较术前提高(P<0.05),IOP较术前差异无统计学意义(P>0.05),无相关严重并发症。结论巩膜缝线固定置换后房型IOL手术对中远期IOL脱位具有较好的临床疗效。

人工晶状体置换的原因及临床效果分析

目的分析近5年接受人工晶状体(IOL)置换术的原因及其临床效果。方法回顾性病例系列研究。收集2019年1月—2023年12月在广西医科大学第一附属医院接受IOL置换术的患者的资料,包括患者基本信息、手术原因及间隔时间、手术前后的裸眼视力(UCVA)与最佳矫正视力(BCVA)以及术后并发症等。排除仅行IOL复位、背驮式IOL植入、取出IOL后未重新植入IOL的患者。结果本研究共纳入38例(47眼),平均年龄(31.19±23.47)岁(4~80岁),平均手术间隔时间为(8.4±7.0)年(13 d~28年)。手术原因包括:IOL移位或脱位16眼(34.0%),先天性白内障术后高度近视16眼(34.0%),IOL混浊5眼(10.6%),术后高散光4眼(8.5%),严重后发性白内障(PCO)和/或IOL损伤3眼(6.4%),多焦点IOL植入术后视觉质量不满意1眼(2.1%),IOL偏心1眼(2.1%),无法耐受色觉改变1眼(2.1%)。术后高散光、多焦点IOL植入术后视觉质量不满意、IOL偏心、无法耐受色觉改变的手术间隔时间较短,均小于1年,其余均为5年以上。IOL置换术临床效果良好,UCVA与BCVA均较术前显著提高。术前、术后的平均UCVA(logMAR)分别为1.32±0.65、0.66±0.42,差异有统计学意义(P<0.001),术前、术后的平均BCVA(logMAR)分别为0.72±0.70、0.44±0.46,差异有统计学意义(P=0.001)。除1例患者IOL置换术后第2天出现IOL移位需重新固定外,余无并发症发生。结论IOL移位或脱位以及先天性白内障术后高度近视是IOL置换术的主要原因。术后高散光、多焦点IOL植入术后视觉质量不满意、IOL偏心、无法耐受色觉改变的手术间隔时间较短,是早期IOL置换原因,而IOL移位或脱位、先天性白内障术后高度近视、IOL混浊以及严重PCO和/或IOL损伤是远期置换的原因。IOL置换术具有一定的挑战性,但临床效果良好,并发症少。

白内障撕囊口控制环的临床应用价值分析

目的 评价白内障撕囊口控制环的临床应用效果。方法 选取60例(60眼)年龄相关性白内障患者为研究对象,按照随机数字表法分为A组与B组,每组30例(30眼)。A组行常规连续环形撕囊白内障超声乳化+折叠式人工晶状体植入术, B组在白内障撕囊口控制环辅助下行连续环形撕囊白内障超声乳化+折叠式人工晶状体植入术。比较两组撕囊口合格率、人工晶状体轻度偏移情况、视力、眼压,以及术中和术后并发症发生情况。结果 两组均顺利完成连续环形撕囊。A组撕囊口合格24眼(80.0%), B组合格30眼(100.0%)。B组撕囊口合格率高于A组,差异有统计学意义(P<0.05)。两组术后1个月人工晶状体轻度偏移率比较差异无统计学意义(P>0.05)。两组术后1 d、1周视力>0.5占比比较,差异无统计学意义(P>0.05)。术前, A组眼压为(14.17±2.47)mm Hg(1 mm Hg=0.133 kPa), B组为(14.60±2.97)mm Hg;术后A组眼压为(15.37±3.59)mm Hg, B组为(15.63±3.05)mm Hg。手术前后两组眼压比较差异无统计学意义(P>0.05)。术中两组无一例发生前房出血、虹膜损伤及后囊膜破裂。术后两组无一例发生前房渗出,两组角膜水肿及前房闪辉发生率比较差异无统计学意义(P>0.05)。两组角膜水肿均在1周内消退。结论 白内障撕囊口控制环可明显提高撕囊口合格率,有助于手术顺利完成,使人工晶状体处于完美位置,并提高手术的安全性。

屈光性晶状体置换手术治疗高度近视眼的长期疗效观察

目的:通过对高度近视眼透明晶状体摘除人工晶状体植入手术后长期疗效观察,评价该疗法的远期效果及安全性。方法:利用非随机的系列病例回顾性研究,对在两年间接受高度近视眼透明晶状体摘除人工晶状体植入的67例(125眼)患者进行了长达6a的随访研究。所有患者均接受了以矫正高度近视眼为目的透明晶状体超声乳化摘除及低读数或负度数人工晶状体囊袋内植入手术。在术后第1,3,6a,分别观察其视力、屈光度、角膜内皮、后发性白内障及视网膜并发症等方面的变化情况。结果:所有手术没有医源性事故发生;接受手术时患者的平均年龄为42.8岁;术前平均近视屈光度为-15.65D。术后6a随访,较术前自戴眶架眼镜矫正视力提高的占75.7%,没有变化的占10.4%,低于术前自戴眶架眼镜矫正视力的占12.2%。44%有后发性白内障发生,需行Nd∶YAG激光后囊膜切开或后囊膜切除手术;1.6%分别在术后5mo和16mo发生视网膜脱离。术后1a角膜内皮丢失率为1.9%,3a为3.2%,6a为5.9%。结论:有术前全面细致的眼部检查、评估和娴熟的超声乳化手术技术的掌控,透明晶状体摘除手术治疗高度近视眼是安全和疗效满意的。

人工晶状体巩膜缝线固定术矫正儿童玻璃体切割术后无晶状体眼疗效分析

目的评价二期人工晶状体巩膜缝线固定术矫正儿童玻璃体切割术后无晶状体眼的疗效。方法对16例16眼儿童玻璃体切割术后(其中8例因化脓性眼内炎、8例因外伤性视网膜脱离行手术)的无晶状体眼行四襻折叠人工晶状体经巩膜缝线固定术;术中全程均使用前房维持器。患者平均年龄为(7.62±2.02)岁(5～11岁),术前最佳矫正视力平均为0.25±0.24,患儿平均眼压为(13.14±0.33)mmHg(1kPa=7.5mmHg),其中10眼有角膜瘢痕。术后随访6～22个月,平均(12.56±5.73)个月。结果术后早期原发病为眼内炎者有5眼出现低眼压,平均为(6.02±1.34)mmHg,一般在术后7d恢复正常眼压。末次随访时,尚未出现缝线暴露、人工晶状体脱位与偏斜和视网膜脱离等严重并发症;患眼最佳矫正视力平均为0.29±0.21,其中最佳矫正视力<0.05者2眼,0.05～0.3者5眼,≥0.3者9眼。结论儿童玻璃体切割术后二期人工晶状体行经巩膜缝线固定术,是矫正儿童单侧无晶状体眼的较好方法,但如何预防和处理患者术后早期低眼压以及对其远期疗效和并发症的评价仍需长期随访观察。

超声乳化联合折叠人工晶状体推注式植入治疗超高度近视白内障疗效观察

目的观察晶状体超声乳化吸出联合推注式折叠人工晶状体(IOL)植入术治疗白内障合并超高度近视的临床效果。方法对81例(98只眼)白内障患者合并超高度近视行小切口超声乳化吸除联合推注式折叠IOL植入术。观察术后视力、角膜散光、并发症等情况。结果术后第一天裸眼视力≥0.2共76眼(77.56%),≥0.5共37只眼(37.76%);术后1月裸眼视力≥0.2共85只眼,占86.73%,≥0.5共42只眼,占42.86%。最佳矫正视力≥0.2共90只眼,占91.84%,最佳矫正视力≥0.5共72只眼,占73.50%。随访中5眼(5.10%)晶状体后囊膜混浊,无后囊破裂,视网膜、脉络膜脱离者。结论超声乳化联合推注式折叠IOL植入是治疗白内障合并超高度近视眼安全、有效的方法。

微小切口推注式人工晶状体睫状沟悬吊术临床应用

目的:探讨微小切口推注式折叠人工晶状体睫状沟悬吊术的有效性和安全性。方法:选择因晶状体后囊破裂或悬韧带断裂不能正常植入后房型人工晶状体的患者52例52眼,利用推注器系统,通过3.2mm的透明角膜小切口,把襻预扎了聚丙烯缝线的折叠人工晶状体植入后房并缝合固定于睫状沟,观察术后视力、角膜散光度及并发症。结果:所有患者术后裸眼视力均提高,其中1.0以上8眼,0.6～0.8为18眼,0.4～0.6为16眼,0.4以下10眼。术后1wk;1,3mo视力在0.5以上者分别为33眼(63%)、39眼(75%)、41眼(79%)。术前及术后1wk;1,3mo的平均角膜散光度分别为1.86±1.65D,2.09±1.28D,1.92±1.34D和1.77±1.16D,术后各时期与术前的角膜散光度差别均无统计学意义(P>0.05)。术中、术后没有出现严重并发症。结论:微小切口推注式折叠人工晶状体睫状沟悬吊术为治疗晶状体、玻璃体切除术后,无晶状体囊支持的患者,提供了一个更安全可靠的人工晶状体植入方法。

小切口两点固定折叠人工晶状体悬吊术的临床观察

目的:探讨小切口对无后囊膜无晶状体眼行两点固定折叠人工晶状体缝线悬吊术的临床疗效。方法:对11例11眼无后囊膜或后囊膜不足以支撑人工晶状体的患者用RAYNER(570C)折叠式人工晶状体,通过小切口两点固定行折叠人工晶状体悬吊术,观察患者术后视力、并发症情况。结果:术后1d裸眼视力>0.5者5眼(46%),0.3～0.5者4眼(36%),2眼(18%)为0.2。术后1,3,6mo视力均达到或好于术前最佳矫正视力。无明显并发症发生。结论:小切口两点固定折叠人工晶状体悬吊术是治疗无囊膜无晶状体眼的一种安全有效的方法。

小切口非超声乳化联合推注式折叠型人工晶状体植入术

目的研究小切口非超声乳化联合推注式折叠型人工晶状体植入术治疗白内障的疗效.方法对34例38眼不同类型的白内障施行3 mm巩膜隧道切口非超声乳化白内障摘出联合推注式折叠型人工晶状体植入术.结果 38眼全部囊袋内植入人工晶状体,术后1 d视力≥0.8者12眼,0.4～0.6者22眼,视力≤0.3者4眼,术后2周视力≥0.8者15眼,0.4～0.6者21眼,视力≤0.3者2眼.术前、术后角膜散光差异无显著性(P>0.05).结论小切口非超声乳化联合推注式折叠型人工晶状体植入术实现了真正意义上的小切口手术,具有许多优点,是治疗白内障的一种好方法.