Human ; Middle Aged ; Adult ; RETINOBLASTOMA ; GENES, RETINOBLASTOMA ; EYE CANCER, RETINOBLASTOMA ; FAMILIAL RETINOBLASTOMA ; GLIOMA, RETINAL

OBJECTIVE: To determine the bonding strength of 2-octyl cyanoacrylate (Dermabond) compared with N-Butyl-2-cyanoacrylate (Histoacryl) and nylon 10-0 (Alcon,) in sealing experimentally induced corneal perforations in cadaver porcine eyes. METHODS: This is a single-blind, randomized, physical experimental study involving 78 freshly enucleated porcine eyes in which perforations of 3.0 and 5.1 mm were made in the cornea and randomly sealed with either interrupted nylon 10-0 (n=13), Dermabond (n=13), or Histoacryl (n=13). Intraocular pressures were raised by injecting normal saline into the anterior chamber and postsealing leaking pressures were measured using a precalibrated manometer attached to the anterior chamber maintainer. Fishers Exact Test was used to determine the difference in proportion of eyes that leaked, and Wilcoxon signed ranked test to compare the mean leaking pressures. RESULTS: In the 3.0 mm group, the proportion of eyes that leaked in Dermabond (2/13, 15.4 percent) and Histoacryl (1/13, 7.7 percent) were comparable (p=1.00). Proportion of leak in nylon 10-0 (13/13, 100 percent) was significantly higher (p0.001). Mean leaking pressures of Dermabond (79.5 mm Hg) and Histoacryl (88.0 mm Hg) were higher compared with that of nylon 10-0 (61.44 mm Hg) (p 0.05). In the 5.1 mm group, proportion of eyes that leaked in Dermabond (4/13, 30.8 percent) and Histoacryl (2/13, 15.4 percent) were comparable (p=0.07 AND P=0.10). CONCLUSION: The bonding strengths of Dermabond and Histoacryl are comparable and greater than that of nylon 10-0. Both are effective for 3.0 mm and 5.1 mm corneal perforations.
Animal ; CYANOACRYLATES ; ENBUCRILATE ; CORNEAL PERFORATION

Objective: To determine the in-vitro activity of voriconazole and compare it with amphotericin B, fluconazole, itraconazole, ketoconazole, and caspofungin against local yeast and mold clinical isolates Candida albicans, Candida sp., Aspergillus terreus, Aspergillus niger, and Fusarium cylindrocarpone. Methods: Review of the Institute of Ophthalmology microbiology records were done and was the basis for the local isolates included in the study. Mean inhibitory concentration (MIC) was determined using YeastOne Sensititre Microtitre Colorimery method (TREK Diagnostic Systems, England). Two-way ANOVA, Duncan, and Pearson chi-squared tests were used to analyze the data. Results: All isolates tested were sensitive to voriconazole. Eighty percent (80%) of the isolates were sensitive to amphotericin B and 25% showed resistance to itraconazole. Yeast pathogens were all sensitive to amphotericin B and voriconazole. More than 50% of the yeast pathogens were resistant to ketoconazole. Molds or filamentous fungi showed higher susceptibility to voriconazole than amphotericin B and the other antifungals. Conclusion Voriconazole exhibited good in-vitro activity against the isolates tested. It has the same efficacy on yeast pathogens (Candida albicans and Candida sp.) when compared with amphotericin B. It has superior efficacy on filamentous fungi (Aspergillus and Fusarium). There is a role for voriconazole in the treatment of ocular infections, especially in the setting of poor antifungal drug availability.
Voriconazole ; Amphotericin B ; Candida ; Fusarium ; Aspergillus