Publications by authors named "Ryo Terauchi"

After developing job-exposure matrices (JEMs) for screen and sedentary time, we aimed to assess the associations between the JEM-derived exposures and various ocular diseases. We collected data from patients hospitalized from 2005 to 2021. JEMs were developed from 41,718 patients with occupational information and screen and sedentary times.

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Article Synopsis
  • A job-exposure matrix was created to analyze sedentary behavior in relation to non-communicable diseases, using data from over 41,000 individuals.
  • The matrix was applied to a large cohort in a case-control study, revealing a connection between higher sedentary time and increased risks of diabetes, heart attacks, and endometrial cancer, while suggesting lower stroke risks.
  • The findings emphasize the need to address sedentary behavior in workplace settings due to its significant health implications.
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Purpose: Although ophthalmic viscosurgical devices are quite important for safe cataract surgery, currently, postoperative residual ophthalmic viscosurgical devices can cause various complications. Previously, we developed a method to visualize residual ophthalmic viscosurgical devices after irrigation/aspiration in vitro and found that the amount of residual ophthalmic viscosurgical device on a single-piece intraocular lens was greater than that on a three-piece intraocular lens. In the present study, we compared the amounts of residual ophthalmic viscosurgical device among various foldable intraocular lenses to investigate the factors that determine the quantity of residual ophthalmic viscosurgical device.

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Purpose: To examine the variability in glaucoma screening using fundus images among physicians, including non-ophthalmologists.

Patients And Methods: Sixty-nine eyes from 69 patients, including 25 eyes with glaucoma, were included from the Jikei University Hospital from July 2019 to December 2022. Fundus images were captured using TRC-NW8 (Topcon Corporation, Tokyo, Japan), and were interpreted by 10 non-ophthalmologists, 10 non-specialist ophthalmologists, and 9 specialists for diagnostic accuracy.

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Prcis: The analysis of intraocular pressure (IOP) by day of the week using the mega database showed a periodic weekly pattern with the highest value on Monday.

Purpose: To evaluate IOP by the day of the week.

Patients And Methods: Annual health checkup examinees between April 2014 and March 2015 were cross-sectionally evaluated.

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Prcis: In this case-control study of the Japanese population, including 3207 glaucoma cases, alcohol consumption patterns such as frequency and quantity showed a positive association with glaucoma prevalence.

Purpose: To examine the association between alcohol consumption patterns and glaucoma.

Subjects And Methods: This case-control study evaluated 3207 cases with glaucoma and 3207 matched controls.

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Purpose: To establish an analysis method using diffeomorphic image registration and evaluate microvascular displacement through epiretinal membrane (ERM) removal.

Methods: Medical records of eyes that underwent vitreous surgery for ERM were reviewed. Postoperative optical coherence tomography angiography (OCTA) images were converted to the corresponding preoperative images according to a configured algorithm using diffeomorphism.

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To examine the risk of incident cataract surgery associated with alcohol use patterns among Japanese adults. This was a case-control study evaluating 14,861 patients with incident cataract surgery and 14,861 matched controls. Subjects admitted to any of the 34 hospitals in Japan and aged between 40 and 69 years were included.

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Article Synopsis
  • A large analysis of intraocular pressure (IOP) across different ages revealed a clear trend of decreasing IOP with increasing age.
  • The study involved over 655,000 participants and utilized a range of health metrics to assess the relationship between age and IOP, finding a consistent negative correlation especially strong in younger (<40) and older (≥70) age groups.
  • The results suggest that on average, IOP decreases by about 3 mmHg over a person's lifetime, with a more significant decline observed at the extremes of age.
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Purpose: To develop and validate a risk score assessable in real-time using only retinal thickness-related values measured by spectral domain optical coherence tomography alone for use in population-based glaucoma mass screenings.

Methods: A total of 7572 participants (aged 35-74 years) underwent spectral domain optical coherence tomography examination annually between 2016 to 2021 in a population-based setting. We selected 284 glaucoma cases and 284 controls, matched by age and sex, from 11,487 scans in 2016.

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Glutathione peroxidase 4 (GPx4) is known for its unique function in the direct detoxification of lipid peroxides in the cell membrane and as a key regulator of ferroptosis, a form of lipid peroxidation-induced nonapoptotic cell death. However, the cytosolic isoform of GPx4 is considered to play a major role in inhibiting ferroptosis in somatic cells, whereas the roles of the mitochondrial isoform of GPx4 (mGPx4) in cell survival are not yet clear. In the present study, we found that mGPx4 KO mice exhibit a cone-rod dystrophy-like phenotype in which loss of cone photoreceptors precedes loss of rod photoreceptors.

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Background/objectives: To assess the influence of patient age on visual outcomes in eyes with diffractive multifocal intraocular lenses (IOLs) SUBJECTS/METHODS: Based on age, we classified eyes with diffractive multifocal IOL into four groups: u50 (under 50 years old), 50s (50-59 years), 60s, and 70s. Corrected distance (CD), distance-corrected near (DCN) visual acuity (VA), and defocus curve were measured postoperatively. Using an "area-of-focus" metric, the distant, intermediate, and near area-of-focus (AoF) were also measured.

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Purpose: Although lecithin-bound iodine (LBI) has been administered orally for retinal diseases, a lack of clinical studies and obscure action mechanism of LBI hinder its large-scale prescription. LBI treatment suppresses chemokine (C-C motif) ligand 2 (CCL2) secretion from retinal pigment epithelial cells in vitro. Herein, we assessed the in vivo effect of LBI treatment on retinal degeneration (RD) in mice.

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Retinal inflammation accelerates photoreceptor cell death caused by retinal degeneration. Minocycline, a semisynthetic broad-spectrum tetracycline antibiotic, has been previously reported to rescue photoreceptor cell death in retinal degeneration. We examined the effect of minocycline on retinal photoreceptor degeneration using c-mer proto-oncogene tyrosine kinase (Mertk)-/-Cx3cr1GFP/+Ccr2RFP/+ mice, which enabled the observation of CX3CR1-green fluorescent protein (GFP)- and CCR2-red fluorescent protein (RFP)-positive macrophages by fluorescence.

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Background/objectives: To evaluate seasonal fluctuations in intraocular pressure (IOP) in primary open-angle glaucoma (POAG) and its associated factors.

Subjects/methods: POAG patients treated only with glaucoma eye drops were enroled. Winter and summer IOPs were evaluated.

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Purpose: To detect seasonal fluctuations in intraocular pressure (IOP) in healthy eyes and eyes with primary open-angle glaucoma (POAG) and to evaluate whether these seasonal fluctuations affect retinal nerve fiber layer (RNFL) thinning in eyes with POAG.

Design: Observational, retrospective cohort study.

Participants: Healthy population who underwent a comprehensive health check-up and patients with POAG using only topical medications were enrolled.

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We aimed to investigate the efficacy of frequency doubling technology (FDT) perimetry for glaucoma detection in comprehensive screening examinations. We performed a retrospective analysis of prospectively collected data of participants who underwent a comprehensive health checkup service. Participants with glaucoma were excluded.

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Ocular cyclotorsion when a patient changes from seated to supine position in cataract surgery and factors predicting the amount of cyclotorsion were investigated using VERION system. Variables analyzed were age, gender, preoperative visual acuity, axial length, laterality of eyes, operative duration, and the direction and degree of cyclotorsion. The mean cyclotorsion of 107 eyes of 93 cataract patients was 0.

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Purpose: To report clinical and genetic features including long-term full-field electroretinography (FF-ERG) findings of a patient with cone dystrophy with supernormal rod responses (CDSRR).

Methods: Ophthalmological medical records including FF-ERG were retrospectively reviewed. Genetic analysis using whole-exome sequencing (WES) was performed.

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