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

• Published in: International journal of ophthalmology 2017-04, Vol.10 (4), p.579-585
• Main Authors: Chai, Fang, Ma, Bo, Yang, Xin-Guang, Li, Juan, Chu, Mei-Fang
• Format: Article
• Language: English
• Subjects: Clinical Research; dislocation; explantation; intraocular lens
• ISSN: 2222-3959; 2227-4898
• DOI: 10.18240/ijo.2017.04.13

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.