Purpose: To report a case of Vogt-Koyanagi-Harada (VKH) disease after COVID-19 vaccination.Case summary: A 53-year-old female patient with no history of systemic disease or ocular surgery presented with bilateral decreased visual acuity, hyperemia, eye pain, and headache 1 month after COVID-19 vaccination (Pfizer-BioNTech). She initially presented 1 week after symptom onset. Her best-corrected visual acuity was 0.63 in the right eye and 1.0 in the left eye, and she had bilateral grade 2 anterior chamber reactions on slit-lamp examination. Fundus photography, optical coherence tomography, and fluorescein angiography revealed bilateral optic disc swelling, choroidal folds, multiple serous retinal detachments, and fluorescein leakage at posterior poles. She was diagnosed with VKH disease and treated with topical and systemic medications, which completely resolved her symptoms over 2 months. Conclusions VKH disease can develop after COVID-19 vaccination in patients without any underlying disease. Therefore, possible side effects and treatments should be explained to patients receiving COVID-19 vaccination.

Purpose: To identify the clinical characteristics and predictors of visual outcomes in acute anterior optic neuritis patients treated with high-dose steroid pulse therapy using spectral domain optical coherence tomography (SD-OCT). Methods: In this study, the medical records of 34 acute anterior optic neuritis patients treated with intravenous high-dose steroid pulse therapy and followed-up for at least 3 months were retrospectively reviewed. The patients were divided into two groups based on the final best-corrected visual acuity (BCVA); group 1 (n = 23) had a final BCVA ≥20/32, while group 2 (n = 11) had a final BCVA <20/32. Clinical characteristics and optical parameters obtained using SD-OCT were evaluated to identify factors influencing the final visual outcome. Results: There were no statistically significant differences in clinical or demographic data between the two groups. Peripapillary retinal nerve fiber layer (pRNFL) swelling at initial presentation was less common (p = 0.015), and the time to pRNFL thickness stabilization was longer (p = 0.016), in group 1. Multivariate logistic regression demonstrated better final visual acuity for patients in whom pRNFL thickness stabilization took longer, as well as in those with a smaller reduction in macular ganglion cell-inner plexiform layer (mGCIPL) thickness, and those without recurrence (p = 0.002, 0.016, and 0.035, respectively). Conclusions Intravenous high-dose steroid pulse therapy much improved long-term visual outcomes in acute anterior optic neuritis patients with delayed pRNFL thickness stabilization, a smaller mGCIPL thickness reduction, and no recurrence. This suggests that inner retinal layer thickness and recurrence after stabilization may serve as biomarkers for final visual acuity after intravenous steroid treatment in acute anterior optic neuritis.

BACKGROUND: Diabetes mellitus is a chronic disease requiring continuous treatment and vigorous self-management. Reinforcement of effective self management and diabetes education are important factors in successful treatment. The aim of this study was to evaluate the effectiveness of the current diabetes education program on blood glucose control, self-management, and self-efficacy of patients with type 2 diabetes mellitus. METHODS: A total of 592 patients with newly diagnosed or uncontrolled type 2 diabetes mellitus were recruited to the diabetes education program from January to December 2007. We surveyed 338 patients from April to July 2008. A total of 117 patients had biochemical examinations and completed a questionnaire about knowledge, self-management and self-efficacy of diabetes treatment (no education group (n = 23), education group (n = 94)). RESULTS: The total scores from the questionnaires and the results of laboratory data showed no differences between the two groups. However, there were significant reductions in hemoglobin A1c level in the education group, as compared with the no education group (P = 0.039). Although the score for knowledge about diabetes mellitus was significantly higher in the education group (P = 0.005), greater knowledge was not reflected in the self-management or self-efficacy of the patients. CONCLUSION: The current diabetes education program had no effect on the self-management or self-efficacy of patients with diabetes, although did show some degree of association with blood glucose control and diabetes knowledge level. We conclude that a more effective diabetes education program needs to be developed and applied to daily practice for the improvement ofself-efficacy in patients with diabetes mellitus.
Blood Glucose ; Chronic Disease ; Diabetes Mellitus ; Diabetes Mellitus, Type 2 ; Hemoglobins ; Humans ; Reinforcement (Psychology) ; Self Care ; Self Efficacy ; Surveys and Questionnaires

Purpose: The 2020 Dietary Reference Intakes for Koreans (KDRIs) serves as a foundation for daily nutrient and energy recommendations aiming to enhance public health and prevent chronic diseases. They act as guidelines for maintaining proper nutrition and overall health.Using KDRIs is crucial for promoting healthier lifestyles and making informed dietary choices. Thus, this study explores the influence of a nutrition education program, based on the 2020 KDRIs, on the nutrition knowledge and dietary habits of undergraduates in Gyeongsangnam-do and Gyeonggi-do. Methods: The nutrition education program, designed with diverse instructional materials, was executed across a wide range of universities. The education group (n = 75) engaged in the program for a 6-week instructional period, while the control group (n = 53) underwent the survey without participating in the education program. Nutrition Quotient (NQ) and knowledge assessments were administered to both groups immediately before and after the instructional period. Results: Within the education group, the nutrition education program positively impacted responses to NQ practice items, including knowledge of nutrition, daily intake, and portion sizes (p < 0.05). In contrast, there were no significant differences between the before and after responses of the control group for most survey items. Post-program evaluations showed significantly higher self-assessment scores and increased satisfaction levels (p < 0.05), with the satisfaction rate for the education program using the 2020 KDRIs reaching 99.2%. Conclusion This study has demonstrated the positive impact of an effective nutrition education program. However, there is a need for the continuous development and implementation of nutrition education programs to sustain these outcomes and further enhance the nutritional education experience.

Ingrown toenail is a common disorder resulting from various etiologies including excessive external pressure, ill-fitting footwear, and improper nail-trimming techniques. Patients commonly present with pain in the affected nail but with progression, drainage, infection and difficulty walking occur. It is often difficult to manage and frequently recurs, despite the multitude of treatment techniques that have been reported. Conservative therapy is a reasonable approach in patients with a mild to moderate ingrown toenail that do not have significant pain, substantial erythema, or purulent drainage from the lateral nail edge. We report a case of ingrown toenail in a 45-year-old female treated with K-D(R) wire, a corrective device. After application of K-D(R) wire for 3 weeks, ingrown toenail healed and the nail deformity was corrected.
Congenital Abnormalities ; Drainage ; Erythema ; Female ; Humans ; Middle Aged ; Mobility Limitation ; Nails ; Onychomycosis ; Tinea

Purpose: To report incidence rates of primary congenital glaucoma in Korea and evaluate comorbidity and mortality from 2001 to 2015. Methods: This study is a nationwide and retrospective population-based study. We used claims data from the Korean National Health Insurance Service database between 2001 and 2015. Data for all patients diagnosed with primary congenital glaucoma were retrieved using the Korean Electronic Data Interchange and Korean Standard Classification of Diseases-6 codes. Results: The number of patients with primary congenital glaucoma between 2001 and 2015 was 776, of which 437 were male (56.31%) and 339 were female (43.69%). The annual prevalence demonstrated a general decreasing trend since 2011, but this was not significant. Over the total survey period, the incidence rate was 11.0 per 100,000 births, with 12.0 cases among males and 10.0 among females. The incidence according to age was 518 (68.78%) patients at age 0, 112 (13.66%) at 1year, 70 (8.39%) at 2 years, and 76 (9.17%) at 3 years. Of the 776 patients diagnosed with primary congenital glaucoma in the study population, 27 died. The observed mortality per 100,000 people is about 10 times higher than that of the general infant and child population under the age of 4 years. Visual impairment was the most common accompanying disability, followed by brain lesion. Conclusions Our study’s estimates of the nationwide population-based incidence of primary congenital glaucoma in a Korean population will expand our understanding of the disease and allow healthcare systems to plan for primary congenital glaucoma.

PURPOSE: The purpose of this study was to develop a mercury database for food commonly consumed by Koreans. METHODS: Target foods for a mercury database were selected from dietary survey data of the 2007-2009 Korean National Health and Nutrition Examination Survey (KNHANES). Data for mercury contents of foods were collected through literature review. Among 702 food items reported by 24 hr dietary recall method, the contents of mercury for 300 food items were selected with systematic evaluation from the literature, which provided analytical values, and those of 56 food items were imputed by using a conversion factor. RESULTS: The mercury database developed in this study covered 50.7% of all kinds of consumed foods and 95.1% of total amount of food intake reported by 2007-2009 KNHANES. In the database, the geometric mean of mercury contents in food items was the highest in the fishes and shellfishes group (41.13 microg/kg, n = 101) followed by mushrooms (18.93 microg/kg, n = 12) and seaweeds (5.92 microg/kg, n = 14), and the lowest in the meats group (0.15 microg/kg, n = 17). CONCLUSION: The developed mercury database can be used to estimate the dietary mercury exposure of Korean people, and the method for development of a mercury database would be helpful to researchers in development of a new database for other food borne hazardous substances.
Agaricales ; Eating ; Fishes ; Hazardous Substances ; Meat ; Nutrition Surveys ; Shellfish

BACKGROUND/OBJECTIVES: The Dietary Reference Intakes for Koreans (KDRIs), a set of reference intake values, have served as a basis for guiding a balanced diet that promotes health and prevents disease in the general Korean population. In the process of developing DRIs, a systematic review has played an important role in helping the DRI committees make evidence-based and transparent decisions for updating the next DRIs. Thus, the 2015 KDRI steering committee applied the systematic review framework to the revision process of the KDRIs. The purpose of this article is to summarize the revision process for the 2015 KDRIs by focusing on the systematic review framework. MATERIALS/METHODS: The methods used to develop the systematic review framework for 2015 KDRIs followed the Agency for Healthcare Research and Quality (AHRQ) and the Tufts Evidence-based Practice Center (EPC). The framework for systematic review of the 2015 KDRIs comprised of the 3 following steps: (1) development of an analytic framework and refinement of key questions and search terms; (2) literature search and data extraction; and, (3) appraisal of the literature and summarizing the results. RESULTS: A total of 203,237 studies were retrieved through the above procedure, with 2,324 of these studies included in the analysis. General information, main results, comments of reviewers, and results of quality assessment were extracted and organized by study design. The average points of quality appraisals were 3.0 (range, 0–5) points for intervention, 6.1 (0–9) points for cohort, 6.0 (3–9) points for nested case-control, 5.4 (1–8) points for case-control, 14.6 (0–22) points for cross-sectional studies, and 7.0 (0–11) points for reviews. CONCLUSIONS: Systematic review helped to establish the 2015 KDRIs as a useful tool for evidence-based approach. Collaborative efforts to improve the framework for systematic review should be continued for future KDRIs.
Case-Control Studies ; Cohort Studies ; Cross-Sectional Studies ; Diet ; Evidence-Based Practice ; Health Services Research ; Recommended Dietary Allowances*

Absorptiometry, Photon ; Adult ; Bone Density ; Bone Diseases, Metabolic ; Calcium ; Confounding Factors (Epidemiology) ; Cross-Sectional Studies ; Epidemiology ; Female ; Femur ; Femur Neck ; Hip ; Humans ; Logistic Models ; Male ; Methods ; Nutrition Surveys ; Osteoporosis ; Population Surveillance ; Potassium ; Potassium, Dietary ; Prevalence ; Retrospective Studies ; Spine ; Vitamin D

OBJECTIVES: Most cohort studies used food frequency questionnaires (FFQ) to evaluate coffee consumption as it assesses habitual dietary patterns, whereas some studies have used the 24-hour recalls (24HR) as it elicits in-depth description of foods and the amount eaten. The aim of this study was to compare FFQs and 24HR to assess the consumption of various types of coffee.METHODS: We included 25,904 participants aged 40 years or older from the Health Examinees (HEXA) Study of the Korean Genome and Epidemiologic Study (KoGES). Each participant completed one FFQ and one-day (n=11,280) or two-day 24HR (n=14,624). We classified coffee types into: black coffee, coffee with sugar and cream, and coffee with sugar alone or cream alone. We compared the proportions of nondrinkers, black coffee, and coffee with sugar and cream through FFQ and 24HR.RESULTS: Among those who completed one FFQ and one-day 24HR, 39.4% of “nondrinkers” on one-day 24HR reported that they did not drink coffee on their FFQs. Whereas among those who complete two-day 24HR, 71.2% of “nondrinkers” on two-day 24HR said that they did not drink coffee on their FFQs. Among those who completed one FFQ and oneday 24HR, 58.3% marked “black coffee” on one-day 24HR said that they drank black coffee on their FFQs. Among those who complete two-day 24HR, 58.8% marked “black coffee” on two-day 24HR said that they drank black coffee on their FFQs. The kappa coefficients and percent agreements were 0.4 and 59.6%, respectively, for the comparison of coffee intake between FFQ and one-day 24HR, and 0.6 and 72.8%, respectively, for the comparison of coffee intake between FFQ and two-day 24HR.CONCLUSIONS: We found discrepancies between FFQs and 24HR in the types of coffee consumed. Such limitations should be considered when using the 24HR data to examine the effect of coffee consumption on disease development.
Coffee ; Cohort Studies ; Epidemiologic Studies ; Genome