Department of Ophthalmology, Advanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh-160 012, India.
Indian J Ophthalmol. 2009 Nov-Dec;57(6):431-6. doi: 10.4103/0301-4738.57149.
To evaluate the outcome of intraocular lens (IOL) implantation using capsular tension ring (CTR) in subluxated crystalline or cataractous lenses in children.
Tertiary care setting.
We prospectively studied 18 eyes of 15 children with subluxation of crystalline or cataractous lenses between 90 degrees up to 210 degrees after phacoemulsification, CTR and IOL implantation. Each child was examined for IOL centration, zonular dehiscence and posterior capsular opacification (PCO).
Age of the patient ranged between five to 15 years. Out of 18 eyes, seven had traumatic and 11 had spontaneous subluxation of crystalline or cataractous lens. Phacoemulsification was successfully performed with CTR implantation in the capsular bag. Intraoperative zonular dialysis occurred in two eyes. Anterior vitrectomy was performed in six eyes to manage vitreous prolapse. IOL implanted was polymethyl methacrylate (PMMA) in eight eyes, hydrophobic acrylic in seven and hydrophilic acrylic in three. Follow-up ranged from 24 months to 72 months. Sixteen eyes had a best corrected visual acuity of 20/40 or better. Nine eyes developed significant PCO and were managed with Neodymium Yttrium Aluminum Garnet (Nd:YAG) laser posterior capsulotomy. One eye with acrylic IOL in the capsular bag had IOL dislocation after two years which was managed with vitrectomy and secondary trans-scleral fixation of IOL.
Phacoaspiration with CTR implantation makes capsular bag IOL fixation possible in most of the eyes with subluxated crystalline or cataractous lenses. PCO still remains a challenge in children with successful phacoaspiration with CTR implantation.
评估在晶状体半脱位或白内障晶状体的儿童中使用囊袋张力环(CTR)植入人工晶状体(IOL)的结果。
三级护理环境。
我们前瞻性地研究了 15 名儿童的 18 只眼,这些儿童在白内障乳化术后有 90 度至 210 度的晶状体或白内障晶状体半脱位,使用 CTR 和 IOL 植入术。对每位患儿进行 IOL 中心定位、悬韧带断裂和后囊膜混浊(PCO)检查。
患者年龄为 5 至 15 岁。18 只眼中,7 只为外伤性,11 只为自发性晶状体或白内障晶状体半脱位。在囊袋中成功进行了白内障乳化术和 CTR 植入术。术中发生了 2 只眼的悬韧带断裂。为了处理玻璃体脱垂,对 6 只眼进行了前玻璃体切割术。植入的 IOL 为 8 只眼的聚甲基丙烯酸甲酯(PMMA)、7 只眼的疏水性丙烯酸和 3 只眼的亲水性丙烯酸。随访时间为 24 个月至 72 个月。16 只眼的最佳矫正视力为 20/40 或更好。9 只眼发生明显的 PCO,并通过钕钇铝石榴石(Nd:YAG)激光后囊切开术进行了治疗。1 只眼在囊袋中植入丙烯酸 IOL 两年后发生 IOL 脱位,通过玻璃体切除术和 IOL 二次经巩膜固定术进行了治疗。
在晶状体半脱位或白内障晶状体的儿童中,白内障乳化术联合 CTR 植入术可使大多数眼的囊袋内 IOL 固定成为可能。在成功进行白内障乳化术联合 CTR 植入术的儿童中,PCO 仍然是一个挑战。