Department of Ophthalmology, Cataract and Refractive Surgery Services, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Eye (Lond). 2018 Jan;32(1):128-135. doi: 10.1038/eye.2017.160. Epub 2017 Aug 11.
PurposeSeverely subluxated crystalline lenses pose a difficult situation to anterior segment surgeons and can only be managed surgically by removal of the lens as well as the capsular bag. Several techniques have been described in literature for the management of such cases. We describe a modified technique of endocapsular lens aspiration by the limbal route for lens extraction through small incisions on the cornea.Patients and methodsThirty-two eyes of 16 consecutive patients with severely subluxated crystalline lenses were recruited in the study. All eyes underwent a modified technique of lens aspiration within the capsular bag using a single instrument, vitrectomy cutter, and irrigation cannula, followed by sacrificing of the capsular bag. The patients were either left aphakic or implanted with an open loop anterior chamber intraocular lens (ACIOL Kelman Multiflex) and prospectively followed up for a period of 3 months.ResultsThe mean age of the patients was 9 years 3 months±3 years (range 5-15 yrs). All eyes underwent complete lens aspiration within the capsular bag with no dislocation of the lens matter. ACIOL was inserted in 22 eyes (68.7%) and 10 eyes (31.2%) were left aphakic. All the surgeries were uneventful. The mean best corrected visual acuity (BCVA) at 3 months post surgery was 0.47±0.11 logMAR which was significantly better than pre-operative BCVA (P=0.001). The percentage endothelial cell loss at 3 months was 7.1%. There was no evidence of glaucoma, corneal decompensation, or retinal detachment. The astigmatism which increased from 1.45D±086 preoperatively to 3.76D±2.02 1 week post-operatively due to sutures reduced to 1.97D±0.81 post suture removal at 3 months.ConclusionThe modified technique of endocapsular lens aspiration proves to be a simple and effective method of removal of the lens-capsular bag complex in severely subluxated lenses.
严重半脱位的晶状体给眼前节外科医生带来了困难,只能通过手术切除晶状体和囊袋来治疗。文献中已经描述了几种处理此类病例的技术。我们描述了一种通过角膜缘途径进行囊内晶状体抽吸的改良技术,通过角膜上的小切口提取晶状体。
本研究共纳入 16 例连续严重晶状体半脱位患者的 32 只眼。所有患者均采用改良的晶状体囊内抽吸技术,使用单一器械(玻璃体切割器和灌洗套管)在囊袋内抽吸晶状体,然后切除囊袋。患者要么保持无晶状体状态,要么植入开放式前房人工晶状体(Kelman Multiflex 型前房型人工晶状体),并前瞻性随访 3 个月。
患者的平均年龄为 9 岁 3 个月±3 岁(5-15 岁)。所有眼均在囊袋内完全抽吸晶状体,无晶状体物质脱位。22 只眼(68.7%)植入前房型人工晶状体,10 只眼(31.2%)保持无晶状体状态。所有手术均无并发症。术后 3 个月最佳矫正视力(BCVA)平均为 0.47±0.11 logMAR,明显优于术前 BCVA(P=0.001)。术后 3 个月内皮细胞丢失率为 7.1%。无青光眼、角膜失代偿或视网膜脱离证据。由于缝线的存在,术后 1 周的散光从术前的 1.45D±0.86 增加至 3.76D±2.02,术后 3 个月缝线去除后减少至 1.97D±0.81。
改良的晶状体囊内抽吸技术是治疗严重半脱位晶状体的一种简单有效的方法。