The Effect of Two Different Opening Patterns of Neodymium:YAG Laser Posterior Capsulotomy on Visual Function

PURPOSE: To investigate the effects of two different opening patterns in neodymium:yttrium-aluminum-garnet (Nd:YAG) laser posterior capsulotomy on visual function. METHODS: A randomized prospective study was conducted on 62 pseudophakic eyes from 50 patients with posterior capsular opacification (PCO). Groups A and B underwent laser posterior capsulotomy with a cruciate opening and a modified circular opening, respectively. The best corrected visual acuity (BCVA), contrast sensitivity, and glare sensitivity were measured before and after laser posterior capsulotomy in both groups. The occurrences of intraocular lens (IOL) pittings were investigated and compared between the two groups. RESULTS: After laser capsulotomy, there were significant increases in BCVA, contrast and glare sensitivity in both groups and no significant differences between the two groups. However, group A had significantly more patients with three or more IOL pittings within a 1.5-mm radius from the IOL center (p = 0.047). In group A, these patients had significantly less contrast sensitivity (p = 0.023 in 1.6 cpd) and glare sensitivity (p = 0.043 in 1.6 cpd) than did patients with two or fewer IOL pittings. CONCLUSIONS: Nd:YAG laser posterior capsulotomy using a modified circular opening can be considered an effective method to manage PCO.

A Case of Renal Abscess associated with endogeneous endophthalmitis and septic pulmonary embolism by Klebsiella pneumoniae / 감염과화학요법

Klebsiella pneumoniae is a pathogen that causes a wide range of infections in the human body and has a tendency to metastasize to multiple organs. Endogenous Klebsiella endophthalmitis is an infrequent but often devastating septic metastatic infection. It tends to be fulminant and often rapidly progresses to permanent visual loss beyond 24 hours after symptom onset, despite therapy with appropriate antibiotics, particularly with a delay in diagnosis and treatment. While endogenous Klebsiella endophthalmitis has mostly been reported in association with primary liver abscesses, it has rarely been reported with other Klebsiella infections including renal abscesses. Here, we present a case of a 73-year-old diabetic female diagnosed with a Klebsiella renal abscess and endogenous endophthalmitis, after developing left flank pain and bilateral decreased visual acuity. She was treated with systemic antibiotics, percutaneous abscess drainage, an intravitreal antibiotics injection, and a vitrectomy. While the renal abscess slowly resolved, the symptoms of endophthalmitis persisted despite treatment. This report suggests that endogenous endophthalmitis should be considered when diabetic patients with renal abscesses complain of ocular symptoms.

A Case of Cholesterosis Bulbi with Secondary Glaucoma Treated by Vitrectomy and Intravitreal Bevacizumab

We report on a case of cholesterosis bulbi concurrent with secondary glaucoma. A 36-year-old man, with a history of long-standing retinal detachment in his right eye after the irrigation and aspiration of a congenital cataract, presented with a clinical picture of elevated intraocular pressure and ocular pain. Upon slit-lamp examination, we found a ciliary injection and a pseudohypopyon of polychromatic crystals. Gonioscopic examination revealed a large amount of crystals deposited on the trabecular meshwork and mild rubeosis iridis, but the neovascularization of the angle could not be clearly confirmed due to the presence of so many crystals. Pars plana vitrectomy was performed to remove clusters of crystals and bevacizumab was injected intravitreally to treat iris neovascularization. Aqueous aspirate was examined by light microscopy and the typical highly refringent cholesterol crystals were identified. Intraocular pressure returned to a normal level after the bevacizumab injection, although severe cholesterosis was still evident in the anterior chamber. To our knowledge, this would be the first Korean case of cholesterosis bulbi combined with chronic retinal detachment and presumed neovascular glaucoma, which was treated by pars plana vitrectomy and intravitreal bevacizumab injection.