AIM： To analyze the correlations between ocular biomechanical and biometric data of the eye,measured by Scheimpflug-based devices on healthy subjects.METHODS： Three consecutive measurements were carried out using th...AIM： To analyze the correlations between ocular biomechanical and biometric data of the eye,measured by Scheimpflug-based devices on healthy subjects.METHODS： Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology（Cor Vis ST） device on healthy eyes and the 10 device-specific parameters were recorded.Pentacam HR-derived parameters（corneal curvature radii on the anterior and posterior surfaces;apical pachymetry;corneal volume;corneal aberration data;depth,volume and angle of the anterior chamber） and axial length（AL） from IOLMaster were correlated with the 10 specific CorV is ST parameters.RESULTS： Measurements were conducted in 43 eyes of 43 volunteers（age 61.24±15.72y）.The 10 specific Cor Vis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface,pachymetric data,root mean square（RMS） data of lower-order aberrations,and posterior RMS of higher-order aberrations and spherical aberration of the posterior cornea.Anterior chamber depth showed a significant relationship,but there were no significant correlations between corneal volume,anterior chamber volume,mean chamber angle or AL and the 10 specific CorV is ST parameters.CONCLUSION： Cor Vis ST-generated parameters are influenced by corneal curvature radii,some corneal RMS data,but corneal volume,anterior chamber volume,chamber angle and AL have no correlation with the biomechan-ical parameters.The parameters measured by CorV is ST seem to refer mostly to corneal properties of the eye.展开更多
The study has collected a set of clinical materials such as extension-flexion dynamic lum-bar spine radiographs and computerized x-ray tornography of lumbar spine and quantified physical exami-nation from 32 patients ...The study has collected a set of clinical materials such as extension-flexion dynamic lum-bar spine radiographs and computerized x-ray tornography of lumbar spine and quantified physical exami-nation from 32 patients with lumbar intervertebral disc herniation, who had gone through a suocessful con-servative treatment. The collection was conducted twice before and after the treatment. With the help oft-test and linear correlation analysis, the study suggests that extensionflexion radiograph of lumbar spineis of important clinical significance in weighing the clinical state of an individual patient, especially forthose who receive conservative treatment. The study emphasizes that the biomechanical disturbance oflumbar spinal column may be from another important pathological element along with the irritation of thenerve root by herniated disc tissue in the pathomechanics of lumbar disc herniation. There is also somediscussion of the computerized X-ray tomography diagnosis in this study. Above all, the author provides anew angle of viewing the trouble by one of the soul principles of traditional Chinese medicine: concept ofholistics .展开更多
文摘AIM： To analyze the correlations between ocular biomechanical and biometric data of the eye,measured by Scheimpflug-based devices on healthy subjects.METHODS： Three consecutive measurements were carried out using the corneal visualization Scheimpflug technology（Cor Vis ST） device on healthy eyes and the 10 device-specific parameters were recorded.Pentacam HR-derived parameters（corneal curvature radii on the anterior and posterior surfaces;apical pachymetry;corneal volume;corneal aberration data;depth,volume and angle of the anterior chamber） and axial length（AL） from IOLMaster were correlated with the 10 specific CorV is ST parameters.RESULTS： Measurements were conducted in 43 eyes of 43 volunteers（age 61.24±15.72y）.The 10 specific Cor Vis ST data showed significant relationships with corneal curvature radii both on the anterior and posterior surface,pachymetric data,root mean square（RMS） data of lower-order aberrations,and posterior RMS of higher-order aberrations and spherical aberration of the posterior cornea.Anterior chamber depth showed a significant relationship,but there were no significant correlations between corneal volume,anterior chamber volume,mean chamber angle or AL and the 10 specific CorV is ST parameters.CONCLUSION： Cor Vis ST-generated parameters are influenced by corneal curvature radii,some corneal RMS data,but corneal volume,anterior chamber volume,chamber angle and AL have no correlation with the biomechan-ical parameters.The parameters measured by CorV is ST seem to refer mostly to corneal properties of the eye.
文摘The study has collected a set of clinical materials such as extension-flexion dynamic lum-bar spine radiographs and computerized x-ray tornography of lumbar spine and quantified physical exami-nation from 32 patients with lumbar intervertebral disc herniation, who had gone through a suocessful con-servative treatment. The collection was conducted twice before and after the treatment. With the help oft-test and linear correlation analysis, the study suggests that extensionflexion radiograph of lumbar spineis of important clinical significance in weighing the clinical state of an individual patient, especially forthose who receive conservative treatment. The study emphasizes that the biomechanical disturbance oflumbar spinal column may be from another important pathological element along with the irritation of thenerve root by herniated disc tissue in the pathomechanics of lumbar disc herniation. There is also somediscussion of the computerized X-ray tomography diagnosis in this study. Above all, the author provides anew angle of viewing the trouble by one of the soul principles of traditional Chinese medicine: concept ofholistics .
