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Purpose@#We compared visual field progression among patients with primary open-angle glaucoma (POAG), normal tension glaucoma (NTG), and primary angle-closure glaucoma (PACG). @*Methods@#A total of 115 POAG, 123 NTG, and 92 PACG eyes were retrospectively analyzed. Global VF progression was evaluated by calculating the changes of mean deviations. To examine local VF deterioration, scotoma enlargement and deepening were analyzed in the superior, and inferior arcuate, and the central, zones. @*Results@#The mean global rate of change in POAG eyes was -0.52 ± 0.74 dB/year, and -0.35 ± 0.41, and -0.38 ± 0.45 dB/year in NTG and PACG eyes; POAG eyes showed significantly more rapid progression than NTG and PACG eyes (p < 0.01). The superior arcuate zone of POAG eyes, the central zone of NTG eyes, and the inferior arcuate zone of PACG eyes exhibited more scotoma enlargement and scotoma deepening than did other zones. @*Conclusions@#The superior arcuate zone of POAG eyes, the central zone of NTG eyes, and the inferior arcuate zone of PACG eyes showed greater VF progression.
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Purpose@#We investigated the change in the absolute error according to the difference between anterior and total keratometry, to determine the criterion for the difference in keratometry, and to determine the indication for using total keratometry. @*Methods@#Sagittal and total refractive power were measured with 2-, 3-, and 4-mm Pentacam® rings, and the absolute error of each was calculated in patients who underwent cataract surgery in our hospital. The correlation between the difference value the sagittal minus the total refractive power and each absolute error was analyzed by simple regression analysis. The analysis was performed by dividing the patients into two groups based on 0.6, which is the average of the difference between the sagittal and total refractive power for the 3-mm ring. @*Results@#Sagittal power was larger than total refractive power for all rings and the absolute error obtained by applying the total refractive power was larger than the sagittal power for the 2- and 4-mm rings (p < 0.001). The simple regression analysis revealed that the absolute error using sagittal power was positively correlated with the difference between sagittal power and total refractive power. In the group with less than 0.6, the absolute error using the total refractive power of all rings was larger than the sagittal power (p < 0.001). In the group exceeding 0.6, the absolute error using the total refractive power was less than using the sagittal power for the 3 mm ring (p = 0.028). @*Conclusions@#The greater the difference between sagittal and total refractive power, the greater the absolute error using sagittal power. Accuracy was higher in the group exceeding 0.6 after applying total refractive power measured at the 3 mm ring compared to sagittal power.
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Purpose@#We investigated the change in the absolute error according to the difference between anterior and total keratometry, to determine the criterion for the difference in keratometry, and to determine the indication for using total keratometry. @*Methods@#Sagittal and total refractive power were measured with 2-, 3-, and 4-mm Pentacam® rings, and the absolute error of each was calculated in patients who underwent cataract surgery in our hospital. The correlation between the difference value the sagittal minus the total refractive power and each absolute error was analyzed by simple regression analysis. The analysis was performed by dividing the patients into two groups based on 0.6, which is the average of the difference between the sagittal and total refractive power for the 3-mm ring. @*Results@#Sagittal power was larger than total refractive power for all rings and the absolute error obtained by applying the total refractive power was larger than the sagittal power for the 2- and 4-mm rings (p < 0.001). The simple regression analysis revealed that the absolute error using sagittal power was positively correlated with the difference between sagittal power and total refractive power. In the group with less than 0.6, the absolute error using the total refractive power of all rings was larger than the sagittal power (p < 0.001). In the group exceeding 0.6, the absolute error using the total refractive power was less than using the sagittal power for the 3 mm ring (p = 0.028). @*Conclusions@#The greater the difference between sagittal and total refractive power, the greater the absolute error using sagittal power. Accuracy was higher in the group exceeding 0.6 after applying total refractive power measured at the 3 mm ring compared to sagittal power.
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Purpose@#We report a patient diagnosed with corneal keloid who had laser-assisted in-situ keratomileusis (LASIK).Case summary: A 41-year-old female presented with LASIK 15 years ago. Seven years later, she presented with a growing white corneal mass located in the lower periphery of the right cornea. The best-corrected visual acuity was 0.6 in the right eye and 0.7 in the left eye, and the white lesion was observed in the right cornea at the 5 o’clock position. Anterior segment optical coherence tomography revealed that the mass was invaded by the upper stroma and epithelium, and Bowmans’s membrane was destroyed. Histopathologic examination showed fusiform fibroblasts and disorganized collagen. Taken together, these findings suggested corneal keloids. @*Conclusions@#Corneal keloids is a rare disease that develops, sometimes, after LASIK surgery. Although there have been cases of this reported in the literature, there had yet to be a case of LASIK-induced corneal keloids in Korea until this study, reported here.
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Purpose@#We report a patient diagnosed with corneal keloid who had laser-assisted in-situ keratomileusis (LASIK).Case summary: A 41-year-old female presented with LASIK 15 years ago. Seven years later, she presented with a growing white corneal mass located in the lower periphery of the right cornea. The best-corrected visual acuity was 0.6 in the right eye and 0.7 in the left eye, and the white lesion was observed in the right cornea at the 5 o’clock position. Anterior segment optical coherence tomography revealed that the mass was invaded by the upper stroma and epithelium, and Bowmans’s membrane was destroyed. Histopathologic examination showed fusiform fibroblasts and disorganized collagen. Taken together, these findings suggested corneal keloids. @*Conclusions@#Corneal keloids is a rare disease that develops, sometimes, after LASIK surgery. Although there have been cases of this reported in the literature, there had yet to be a case of LASIK-induced corneal keloids in Korea until this study, reported here.
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BACKGROUND: Plasma soluble cluster determinant 36 (sCD36) level is closely related with insulin resistance and atherosclerosis, but little is known whether it could be a surrogate for estimating risk of developing diabetes or not. To address this, we evaluated association between sCD36 index, the product of sCD36 and fasting plasma glucose (FPG), and the prevalence of type 2 diabetes mellitus (T2DM), and then compared with triglyceride-glucose (TyG) index which has been suggested simple index for insulin resistance. METHODS: This was cross-sectional study, and participants were classified as normal glucose tolerance (NGT), prediabetes, and T2DM according to glucose tolerance. The formula of TyG index was ‘ln [FPG (mg/dL)×triglyceride (mg/dL)/2],’ and the sCD36 index was ‘ln [sCD36 (pg/mL)×FPG (mg/dL)/2].’ RESULTS: One hundred and fifty-five subjects (mean age, 55.2 years) were enrolled, and patients with T2DM were 75. Both indexes were significantly increased in prediabetes and T2DM rather than NGT, and sCD36 index was positively correlated with both glycosylated hemoglobin and homeostasis model assessment of insulin resistance (r=0.767 and r=0.453, respectively; P<0.05) and negatively with homeostasis model assessment estimate of β-cell function (r=−0.317). The odds ratio (OR) of sCD36 index for T2DM was 4.39 (95% confidential interval, 1.51 to 12.77) after adjusting age, gender, blood pressure, smoking, alcohol, non-high density lipoprotein cholesterol and high-sensitivity C-reactive protein. However, OR of TyG index did not remained significance after adjustment. CONCLUSION: sCD36 index has an independent association with the risk of T2DM, and showed better correlation than TyG index. These results suggest sCD36 index might be useful surrogate marker for the risk of diabetes.
Subject(s)
Humans , Atherosclerosis , Biomarkers , Blood Glucose , Blood Pressure , C-Reactive Protein , Cholesterol , Cross-Sectional Studies , Diabetes Mellitus, Type 2 , Fasting , Glucose , Glycated Hemoglobin , Homeostasis , Insulin Resistance , Lipoproteins , Odds Ratio , Plasma , Prediabetic State , Prevalence , Smoke , SmokingABSTRACT
PURPOSE: Many studies on the time course of inducible nitric oxide synthase (iNOS) gene expression have been performed in the LPS (Lipopolysaccharide)-induced endotoxemic model, but there have been few experimental approaches to continuous peritonitis-induced sepsis model. We conducted this study to establish basic data for future sepsis-related research by investigating the time course of iNOS gene expression and the relationship with the production of inflammatory mediators in the early sepsis model induced by cecal ligation and puncture (CLP). METHODS: Male Sprague-Dawley rats were operated on by sing the CLP method to induce of peritonitis; and then, they were sacrificed and samples of blood and lung tissues were obtained at various times (1,2,3,6,9 and 12 h after CLP). We observed the expression of iNOS mRNA from lung tissues and measured the synthesis of nitric oxide, IL-1beta , and TNF-alpha from the blood. RESULTS: iNOS mRNA began to be expressed at 3 h and was maintained untill 12 h after CLP. The nitric oxide concentration was increased significantly at 6 h, reached its peak level at 9 h, and maintained a plateau untill 12 h after CLP. TNF-alpha began to be detected at 3 h, increased gradually, and decreased steeply from 9 h after CLP. IL-1beta showed its peak level at 6 h after CLP, and tended to decrease without significance. CONCLUSION: We observed that the iNOS gene was expressed later in peritonitis-induced sepsis than in LPSinduced sepsis. Nitric oxide and key inflammatory mediators were also expressed later in peritonitis-induced sepsis than in LPS-induced sepsis.