A pilot study of intraocular lens explantation in 69 eyes in Chinese patients
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Supported by the National Natural Science Foundation of China Grant (No.81273902); the Project of Science and Technology of Social Development Funding (No.2016SF-100); the Construction Program of Xi’an Key Discipline Superiority Specialty (No.[2015] 228-7); the Science and Technology Research and Development Program of Shaanxi Province (No.2014K11-03-07-04).

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    Abstract:

    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.

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Fang Chai, Bo Ma, Xin-Guang Yang, et al. A pilot study of intraocular lens explantation in 69 eyes in Chinese patients. Int J Ophthalmol, 2017,10(4):579-585

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Publication History
  • Received:March 28,2016
  • Revised:February 06,2017
  • Adopted:
  • Online: April 14,2017
  • Published: