Showing papers by "Tae Wan Kim published in 2005"

Internal Limiting Membrane Peeling In Surgical Treatment of Macular Epiretinal Membrane

Abstract: Purpose: To evaluate the additional effect of internal limiting membrane (ILM) peeling in patients with idiopathic macular epiretinal membrane (ERM) who underwent ERM removal without ILM peeling. Methods: The subjects were those patients with idiopathic macular ERM who underwent pars plana vitrectomy, whose ERM was completely removed without peeling of the ILM. Additional ILM peeling was carried out randomly in some patients. Anatomical outcomes, functional results, recurrence, and complications were compared between the eyes with and without ILM peeling. Anatomical outcome included the macular thickness from optical coherence tomography (OCT). Functional results included the change in best-corrected visual acuity (BCVA) and the responses from multifocal electroretinograms (mfERG). Results: Postoperative BCVA improved and macular thickness decreased in both groups but there were no statistically significant differences between the two groups. There was no recurred case in either group. Furthermore, in comparison of P1 amplitudes and peak times in mfERG, there were no differences between the two groups. Conclusions: The additional ILM peeling in patients with complete ERM removal without ILM peeling doesn’t affect the postoperative results in visual acuity, macular thickness, recurrence, and complications.

The Effect of Nd: YAG Laser Capsulotomy for Posterior Capsular Opacity after PC-IOL Implantation in Children.

Abstract: Purpose: To evaluate the effect of Nd:YAG laser capsulotomy for posterior capsular opacification (PCO) after posterior chamber intraocular lens (PC-IOL) implantation in children. Methods: Thirty eyes of 23 children underwent Nd:YAG laser capsulotomy for PCO after PC-IOL implantation. The frequency of laser capsulotomy, elapsed time between cataract surgery and capsulotomy, laser parameters, pre and postoperative visual acuity, complications and recurrence were reviewed. Results: From 108 eyes with intact posterior capsule after lensectomy, 30 (27.8%) were treated with Nd:YAG laser capsulotomy. The mean age at Nd:YAG laser capsulotomy was 7 years, the mean follow-up was 27 months, and the time interval between cataract operation and Nd:YAG laser capsulotomy was 13 months. Visual acuities of 20/40 or better were attained in 73% of eyes and visual acuities of 20/60 or less in 10% of eyes. PCO recurred in 12 eyes (40%), 10 of which were treated by performing a second laser capsulotomy, but the other two required a third laser capsulotomy. There was no relationship between the recurrence and the delay to initial laser capsulotomy, the amount of energy used for laser capsulotomy, or the patient age. One eye (3%) had corneal erosion, a bleeding from the pupillary margin and increased IOP; however, all responded well to medical treatment. Conclusions: Nd:YAG laser capsulotomy for PCO after PCL implantation in children offers a noninvasive and safe capability to create a clear visual axis. Although considered effective, there is a high likelihood that Nd:YAG laser capsulotomy will require revision.

A Case of Intralenticular Triamcinolone Complicated by Intravitreal Triamcinolone Acetonide Injection

Abstract: Purpose: To report a case of intralenticular triamcinolone complicated by intravitreal triamcinolone acetonide (IVTA) injection. Methods: A 56-year-old man who presented with lens opacity in the right eye following IVTA injection as a treatment for the central retinal vein occlusion with macular edema was referred to our clinic. Results: The visual acuity in his right eye was hand motion, which was not corrected. A slit lamp examination showed that the intralenticular crystalloid powder in the right eye was likely triamcinolone acetonide. Intralenticular crystalloid powder was detected during the phacoemulsification and the posterior capsule of the lens had been already ruptured. Conclusions: Lens opacity can be complicated by IVTA through intralenticular injection of triamcinolone acetonide.