Purpose: To report the postoperative courses of 2 patients with Fuchs heterochromic iridocyclitis (FHI) and the concentrations of various cytokines, chemokines and growth factors in vitreous fluid samples to obtain insights into pathobiochemical aspects. Subjects: The patients were a 27- and a 47-year-old woman. Phacoemulsification and aspiration, intraocular lens (IOL) implantation, and pars plana vitrectomy were performed to treat their cataracts and vitreous opacities. During their early postoperative periods, inflammatory cells precipitated on the IOL and intraocular pressure was increased in both patients. Methods: At the time of surgery, undiluted vitreous fluid specimens were collected. The concentrations of multiple cytokines, chemokines and growth factors were measured by a bead array immunodetection system. Results: The levels of interleukin-1ra, -5, -6, -8, -10 and -13, interferon-inducible 10-kDa protein, monocyte chemoattractant protein 1, macrophage inflammatory protein 1β, and regulated upon activation, normal T-cell expressed and secreted (RANTES) were significantly elevated in vitreous fluid in both patients. Conclusion: Although the postoperative course was generally favorable in patients with FHI, steroid instillation was necessary for a few months postoperatively, as precipitates easily formed on the IOL surface and elevated intraocular pressure. The profiles of intravitreal concentrations of cytokines, chemokines and growth factors may characterize postoperative inflammatory reactions.

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