Publications by authors named "Toshinori Masaki"
Purpose: To report genetic mutational analysis and in vivo histology of Meesmann corneal dystrophy.
Study Design: Prospective, case control study.
Methods: Six patients from three independent families with clinically diagnosed Meesmann corneal dystrophy were enrolled in this study.
Purpose: To report a modified surgical technique called the "donor tissue holding technique for Descemet's membrane endothelial keratoplasty (DMEK)" using a newly developed 25-gauge graft manipulator.
Methods: Six consecutive patients exhibiting endothelial dysfunction were enrolled and treated by DMEK. In brief, after insertion of a DMEK donor into the anterior chamber, the edge of the roll was grasped using a graft manipulator and this grasp was maintained throughout the centering and opening of the roll (holding technique).
Purpose: To restore vision in complex eyes with coexisting anterior and posterior segment problems, combined corneal transplantation (penetrating keratoplasty [PK] or Descemet-stripping automated endothelial keratoplasty [DSAEK]), pars plana vitrectomy (PPV), and/or flanged intrascleral intraocular lens (IOL) fixation, designated vitreocorneal surgery are performed. In this study, we evaluated the usefulness of vitreocorneal surgery for eyes with complex comorbidities.
Methods: Thirteen consecutive eyes in 13 patients with coexisting corneal pathology (ie, corneal scarring, bullous keratoplasty, corneal laceration) and posterior segment pathology (ie, aphakia without capsular support, retinal detachment, intravitreal foreign body) underwent vitreocorneal surgery.
Purpose: To report a 10-year review of endothelial keratoplasty (EK) procedures, Descemet's stripping automated endothelial keratoplasty (DSAEK) and Descemet's membrane endothelial keratoplasty (DMEK), and underlying diseases at a tertiary referral hospital in Japan.
Study Design: A single-center, retrospective case series.
Methods: We retrospectively reviewed all medical records of bullous keratopathy (BK) surgically treated by EK (DSAEK/DMEK) at Kanazawa University Hospital from January 2007 to December 2016.
Objective: To report the in vivo laser confocal microscopy findings of corneas with keratoconus, with special attention to abnormality of Bowman's layer and sub-Bowman's fibrous structures (Kobayashi-structures [K-structures]).
Methods: Sixteen keratoconic eyes in 8 consecutive patients with keratoconus (4 males, 4 females, mean age, 41.1 years) were included in this study.
Purpose: To report the first case of Descemet membrane endothelial keratoplasty (DMEK) for bullous keratopathy (BK) secondary to argon laser iridotomy (ALI).
Patient: A 71-year-old woman presented with decreased visual acuity in her right eye due to BK secondary to ALI that was performed 10 years prior.
Results: Phacosurgery was performed first, followed by successful DMEK 4 months later.
Purpose: The aim of this study was to evaluate endothelial cell damage of internationally shipped prestripped donor tissue for Descemet membrane endothelial keratoplasty (DMEK) using vital dye staining.
Methods: Six internationally shipped prestripped DMEK donors were stained with trypan blue and were subsequently photographed before they were cut with a trephine. Quantitative analysis assessment of endothelial damage of the donor graft area (8.
Purpose: To report surgical therapies for corneal perforations in a tertiary referral hospital.
Methods: Thirty-one eyes of 31 patients (aged 62.4±18.
Here we report a case of endothelial keratoplasty with infant donor tissue obtained after brain death. A 52-year-old man with endothelial dysfunction of unknown cause in the right eye underwent non-Descemet stripping automated endothelial keratoplasty (nDSAEK) with tissue from an infant donor (2 years). Intraoperative and postoperative complications were recorded.
View Article and Find Full Text PDFObjective: To report the in vivo laser confocal microscopy findings of a cornea with osteogenesis imperfecta (OI) with special attention to the abnormality of Bowman's layer and sub-Bowman's fibrous structures (K-structures).
Patients And Methods: Two patients (67-year-old male and his 26-year-old son) with OI type I were included in this study. Slit lamp biomicroscopic and in vivo laser confocal microscopic examinations were performed for both patients.
Objective: To investigate the in vivo corneal changes in patients with bullous keratopathy who underwent Descemet's membrane endothelial keratoplasty (DMEK) with the use of in vivo laser confocal microscopy.
Design: Single-center, retrospective clinical study.
Participants: Five eyes of 4 patients (3 men, 1 women; mean age, 61.
Rationale for performing penetrating keratoplasty rather than DSAEK in patients with bullous keratopathy in Japan.
Ophthalmic Surg Lasers Imaging
October 2013
Background And Objective: To analyze the rationale for performing penetrating keratoplasty (PK) rather than Descemet's stripping automated endothelial keratoplasty (DSAEK) in patients with bullous keratopathy (BK) in Japan.
Patients And Methods: A total of 136 eyes of 130 patients with consecutive BK were enrolled. Patients treated by DSAEK were categorized as the DSAEK group.
Purpose: To report the clinical outcomes of non-Descemet stripping automated endothelial keratoplasty (nDSAEK) as a treatment for endothelial dysfunction.
Methods: Nineteen eyes of 19 patients (mean age 74.2 years) with non-Fuchs-type bullous keratopathy suitable for endothelial keratoplasty were enrolled in this study.