Publications by authors named "Takeshi Ohguchi"

Prcis: A Kaplan-Meier survival curve analysis showed no significant differences in success rates between uveitic glaucoma (UG) and primary open angle glaucoma (POAG) 120 months after modified 360-degree suture trabeculotomy, which was effective for both groups in the long term.

Purpose: The aim of this study was to examine the outcomes of modified 360-degree suture trabeculotomy in patients with UG as compared with those with POAG.

Patients And Methods: This was a retrospective, nonrandomized, and comparative case series study.

View Article and Find Full Text PDF

Purpose: To evaluate the long-term outcomes of trabeculectomy with mitomycin C (MMC-TLE) in patients with uveitic glaucoma (UG). This was a retrospective, nonrandomized case series study. MMC-TLE was performed on 50 eyes with UG between February 2001 and January 2015 at Hokkaido University Hospital.

View Article and Find Full Text PDF

Background: This study reports a case of pterygium-like proliferation containing postoperative limbal dermoid remnants and its clinicopathological features.

Case Presentation: A 79-year-old Japanese woman, with a history of congenital limbal dermoid resection at age 12, presented with a pterygium-like tissue growth in the left eye. Its temporal location and marked thickness with abundant fatty droplets were atypical of primary pterygium.

View Article and Find Full Text PDF

The receptor-associated prorenin system (RAPS) is associated with several pathologic conditions, including diabetic retinopathy, age-related macular degeneration, and uveitis. Here, we show the involvement of RAPS in the trabecular meshwork (TM) from patients with primary open-angle glaucoma (POAG) and neovascular glaucoma (NVG) due to proliferative diabetic retinopathy. Anterior chamber (AC) levels of prorenin significantly increased in both POAG and NVG, as did those of angiotensin II in NVG alone, compared to cataract.

View Article and Find Full Text PDF

Unlabelled: PRéCIS:: A positive correlation was observed between intraocular pressure (IOP) and central venous pressure (CVP) in patients with single ventricle (SV) during the perioperative period. IOP needs to be carefully monitored in the postoperative period after the Glenn and Fontan procedures, particularly the Glenn procedure.

Purpose: SV is a cardiac malformation characterized by the existence of only 1 functional ventricle and is treated using the Glenn and Fontan procedures.

View Article and Find Full Text PDF

Purpose: To evaluate corneal tactile and pain sensations in patients with short tear film break-up time dry eye (sBUT DE).

Methods: This study enrolled 60 patients with sBUT DE and 46 healthy volunteers from Japan. We evaluated corneal tactile and pain sensations using a modified method with the Cochet-Bonnet corneal esthesiometer.

View Article and Find Full Text PDF

Background: The aim of this study is to report a patient with senile cataract developing severe thermal corneoscleral injury during phacoemulsification, which was treated with a donor scleral graft.

Case: Severe thermal corneoscleral injury occurred during phacoemulsification in the right eye of a 74-year-old male. His medical history was prostate hypertrophy.

View Article and Find Full Text PDF

Purpose: The aim of this study was to report a case of atopic dermatitis showing elevated intraocular pressure (IOP) beyond the baseline levels followed by a modified 360-degree suture trabeculotomy, and to analyze the histological findings in the trabecular meshwork.

Methods: A 40-year-old male suffered from blurred vision in the right eye (OD). He had a medical history of severe atopic dermatitis and intraocular lens implantation OU due to atopic cataract.

View Article and Find Full Text PDF
Article Synopsis
  • This study evaluated the safety and tolerability of conjunctival rings (CRs) for delivering drugs to the eye's posterior segment using animal and human trials.
  • In animal studies, CRs with 5% dexamethasone were found to be as safe as contact lenses, with no significant corneal damage.
  • Human trials showed that CRs did not significantly alter key eye health parameters, demonstrating their potential as a safe drug delivery device.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to evaluate the safety and effectiveness of a combined surgery (modified 360-degree suture trabeculotomy with cataract surgery) for patients with glaucoma and cataracts, compared to trabeculotomy alone.
  • Conducted at Hokkaido University Hospital, the analysis involved reviewing medical records from two groups of 46 patients each, looking at intraocular pressure (IOP) changes and complications after one year.
  • Results showed similar outcomes for both groups, with significant reductions in IOP and high success rates, though some patients experienced transient IOP spikes and hyphema as complications.
View Article and Find Full Text PDF

Vascular endothelial growth factor C (VEGF-C) plays an important role in the development of a pterygium through lymphangiogenesis. We examined the association between VEGF-C and tumor necrosis factor-α (TNF-α) in the pathogenesis of pterygia. Cultured conjunctival epithelial cells were treated with TNF-α, and the gene expression levels of VEGFC were evaluated by quantitative polymerase chain reaction (qPCR) and VEGF-C protein expression levels were measured using an enzyme-linked immunosorbent assay (ELISA).

View Article and Find Full Text PDF

Purpose: To evaluate intraocular pressure (IOP) changes during nocturnal sleep in patients with obstructive sleep apnea syndrome (OSAS) using a contact lens sensor (CLS).

Methods: This was a prospective cohort study. Seven OSAS patients who had no ocular diseases except mild cataract were enrolled.

View Article and Find Full Text PDF

Purpose: To investigate the efficacy of 2% rebamipide ophthalmic solution on the tear functions and ocular surface status of the superoxide dismutase-1(Sod1(-/-)) mice.

Methods: Two percent Rebamipide ophthalmic solution was applied to 40-week-old male Sod1(-/-) and wild-type (WT) mice four times a day for 2 weeks. We examined the cytokine concentrations in the tear fluid (by CytoBead assay), tear film break-up time, amount of tear production, and expressions of mucins 1, 4, and 5AC, by RT-PCR.

View Article and Find Full Text PDF

Vascular endothelial growth factor C (VEGF-C) and its receptor VEGFR-3 mediate lymphangiogenesis. In this study, we analyzed the expression of VEGF-C and VEGFR-3 as well as lymphatic vessels in the pterygium and normal conjunctiva of humans. Fifteen primary nasal pterygia and three normal bulbar conjunctivas, surgically removed, were examined in this study.

View Article and Find Full Text PDF

Purpose: Ultraviolet (UV) acts as low-dose ionizing radiation. Acute UVB exposure causes photokeratitis and induces apoptosis in corneal cells. Astaxanthin (AST) is a carotenoid, present in seafood, that has potential clinical applications due to its high antioxidant activity.

View Article and Find Full Text PDF

Purpose: Because adenoviral conjunctivitis is a contagious disease, prompt and accurate diagnosis in the early stage of infection is necessary to prevent epidemics. We evaluated and compared the clinical features of adenoviral conjunctivitis at the first medical examination with those of nonadenoviral follicular conjunctivitis.

Methods: The clinical features of 102 patients with suspected adenoviral conjunctivitis at the first medical examination were retrospectively reviewed.

View Article and Find Full Text PDF

Purpose: Adenoviral keratoconjunctivitis is a major cause of ocular morbidity and may lead to visual loss. Adenovirus types 8, 19, and 37 may cause epidemic keratoconjunctivitis. The main objective of this study was to determine the types of adenoviruses causing keratoconjunctivitis in Saudi Arabia.

View Article and Find Full Text PDF

Purpose: We investigated human adenovirus (HAdV) and Chlamydia trachomatis in patients with infectious conjunctivitis in Nepal.

Method: We obtained swabs from 6 patients with infectious conjunctivitis in a remote area near the Indian border (group A), and from 30 patients at the B. P.

View Article and Find Full Text PDF

Human adenovirus type 8 (HAdV-8) and 37 (HAdV-37) cause epidemic keratoconjunctivitis (EKC) associated with community-acquired and nosocomial infections. The nucleotide sequences of the entire hexon and fiber genes of eight HAdV-8 and 26 HAdV-37 strains were analysed and the transition mutations in each gene were compared among strains. Compared with prototype strains, the hexon gene of HAdV-8 and -37 strains showed between two and seven and one and twelve variations at nine and 21 different positions, respectively.

View Article and Find Full Text PDF

We determined the complete genome sequence of epidemic keratoconjunctivitis (EKC)-related human adenoviruses (HAdVs). We analysed a total of 12 HAdV strains; three prototype strains and two HAdV-8, three HAdV-19 and three HAdV-37 clinical isolates from EKC patients in Japan, and one novel serotype of HAdV. Genome organization of these serotypes was identical to those of the recently determined HAdV-19 and HAdV-37.

View Article and Find Full Text PDF

In a 2-month period in 2003, we encountered an outbreak of epidemic keratoconjunctivitis (EKC) in Japan. We detected 67 human adenoviruses (HAdVs) by PCR from eye swabs of patients with EKC at five eye clinics in different parts of Japan. Forty-one of the 67 HAdV DNAs from the swabs were identified as HAdV-37 by phylogenetic analysis using a partial hexon gene sequence.

View Article and Find Full Text PDF

Purpose: To prevent outbreaks of nosocomial adenoviral conjunctivitis, proper management for transmission control must be performed. We collected conjunctival samples from asymptomatic inpatients and an ophthalmologist in an ophthalmology ward and attempted to detect the human adenovirus (HAdV) pathogen for infection control.

Methods: One inpatient was diagnosed with adenoviral conjunctivitis on the basis of typical, acute, and severe symptoms and virologic testing by using an immunochromatography (IC) kit.

View Article and Find Full Text PDF

In 2000, we encountered cases of nosocomial infections with epidemic keratoconjunctivitis (EKC) at a university hospital in Kobe, in the western part of Japan. Two human adenovirus (HAdV) strains, Kobe-H and Kobe-S, were isolated from patients with nosocomial EKC infection. They were untypeable by existing neutralizing antisera; however, the isolate was neutralized with homologous antisera.

View Article and Find Full Text PDF

Purpose: We studied the prevalence of neutralization antibodies against human adenovirus (hADV) in ophthalmological medical workers as one measure for the prevention of nosocomial infection.

Methods: The prevalence of neutralization antibodies against hADV-3, -4, -7, -8, -11, -19, and -37, which can cause conjunctivitis, was measured in 288 workers at ten ophthamological facilities in Japan. We studied the prevalence in different facilities, different generations, different types of workers (doctors, nurses, and others), and their medical history of hADV conjunctivitis.

View Article and Find Full Text PDF