Publications by authors named "Tatsuya Onguchi"

Purpose: Decorin is a small chondroitin sulfate proteoglycan that inhibits vascular endothelial cell migration and tube formation. Membrane type 1-matrix metalloproteinase (MT1-MMP) has been shown to be an important angiogenic enzyme in the cornea. We evaluated the specific role of MT1-MMP in decorin cleavage in the cornea.

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Background/aims: Decorin has been shown to have antiangiogenic properties. In this study, we evaluate the involvement of membrane type 1-matrix metalloproteinase (MT1-MMP), a proangiogenic enzyme, in decorin cleavage in the cornea.

Methods: MT1-MMP expression was confirmed immunohistochemically in keratocytes and immortalized corneal fibroblast cell lines.

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Corneal neovascularization is one of the leading causes of blindness. The aim of this study was to evaluate the pro-angiogenic role of corneal fibroblast-derived membrane type-1 matrix metalloproteinase (MT1-MMP) on basic fibroblast growth factor (bFGF)-induced corneal neovascularization in vivo and in vitro. Immunohistochemical studies demonstrated that MT1-MMP was expressed in keratocytes and immortalized corneal fibroblast cell lines.

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Purpose: To evaluate the efficacy of a new Orgahexa eye warmer mask for patients with simple meibomian gland dysfunction (MGD) in a prospective comparative study.

Methods: Twenty right eyes of 20 patients with simple MGD, and 22 right eyes of 22 healthy controls were studied. Subjects were allocated to Orgahexa or conventional eye mask wear for 10 min (short-term study), and for 2 weeks (long-term study).

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Purpose: To evaluate the safety and efficacy of an original warm moist air device on tear functions and ocular surface of patients with simple meibomian gland dysfunction (MGD).

Methods: Fifteen patients with simple MGD and 20 healthy volunteers were recruited in an initial prospective interventional clinical trial to evaluate the safety and short-term effects of the warm moist air device. The device was applied to the eyes of the subjects for 10 minutes.

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Purpose: To investigate the tear and ocular surface findings between controls, children, and adults with atopic keratoconjunctivitis (AKC).

Design: Prospective comparative study.

Methods: Twenty eyes of 10 childhood-onset, 10 eyes of five adult-onset, AKC adult patients, and 12 eyes of six children with infantile-onset AKC, 14 eyes of seven normal adults and seven normal children were recruited.

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Purpose: To evaluate the influence of amniotic membrane on intraocular pressure (IOP) measurement with the Tono-Pen.

Design: Observational case series.

Method: Eight patients with partial limbal dysfunction who underwent penetrating keratoplasty were recruited.

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Purpose: To evaluate the efficacy of lidocaine tape in reducing pain during botulinum toxin injection.

Design: Randomized double-blind study.

Method: Six men and four women with a diagnosis of Meige syndrome undergoing botulinum toxin injection were recruited.

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Background: As laser in situ keratomileusis (LASIK) becomes the treatment of choice in the field of refractive surgery, postoperative rhegmatogenous retinal detachment has also begun to occur. However, since it has not been reported yet here in Japan, we report two cases of retinal detachment following LASIK with suggestions based on our experience.

Cases: A 34-year-old male(Case 1) and a 26-year-old male(Case 2) suffered from retinal detachment one month and eight months after LASIK, respectively.

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