Utility of CLOCK CHART binocular edition for self-checking the binocular visual field in patients with glaucoma

2019 ◽  
Vol 103 (11) ◽  
pp. 1672-1676
Author(s):  
Marika Ishibashi ◽  
Chota Matsumoto ◽  
Shigeki Hashimoto ◽  
Mariko Eura ◽  
Sachiko Okuyama ◽  
...  
Keyword(s):  
Visual Field ◽  
Normal Subjects ◽  
Car Accidents ◽  
Normal Individuals ◽  
Field Analyser ◽  
Check Method ◽  
Driver Licensing ◽  
Swedish Interactive Threshold Algorithm ◽  
Group 1 ◽  
Binocular Visual Field

Background/aimsCar accidents caused by drivers unaware of their visual field (VF) defects under binocular vision have become an issue. We developed a simple self-check chart (CLOCK CHART binocular edition (CCBE)) to help patients with glaucoma recognise their abnormalities in the binocular VF and evaluated its usefulness.MethodsThe chart has four targets displayed at 10°, 15°, 20° and 25° eccentricities. The examinee gradually rotates the chart 360° clockwise. At every 30°, the examinee confirms the fixation and indicates if all four targets can be seen. This study enrolled 88 eyes of 44 patients with glaucoma (mean age, 64.4±13.1 years) and 64 eyes of 32 visually normal individuals (mean age, 32.0±8.4 years). Except the CCBE test, static VF testing using the Humphrey field analyser (HFA) Swedish Interactive Threshold Algorithm-Standard 30-2 and binocular Esterman programmes was also performed for the subjects with glaucoma.ResultsVF abnormality was defined as two or more contiguous points with a sensitivity of <10 dB within the central 30°. The CCBE test had sensitivities of 85% and 82% with respect to the HFA and Esterman results, respectively. We also used the British VF standards for Group 1 (car/motorcycle) drivers, and a sensitivity of 88% was obtained for the CCBE. The chart had a specificity of 100% for the visually normal subjects.ConclusionThe CCBE test enables drivers with glaucoma to notice their VF abnormalities under binocular condition. The application of this simple self-check method appears promising for occasions such as driver licensing.

scholarly journals Correlation of Anxiety Levels between Temporomandibular Disorder Patients and Normal Subjects

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Subhash Vasudeva ◽  
Asha Iyengar ◽  
Nagesh Seetaramaiah
Keyword(s):  
Temporomandibular Disorder ◽  
Depression Scale ◽  
Signs And Symptoms ◽  
Normal Subjects ◽  
Hospital Anxiety Depression Scale ◽  
Normal Individuals ◽  
Group 2 ◽  
The Individual ◽  
Anxiety Depression ◽  
Group 1

Background. Temporomandibular disorders (TMDs) are among the common musculoskeletal conditions affecting the individual. Anxiety plays an important role in the pathogenesis of TMD. Modern lifestyle and work environment bring to focus the role of anxiety in everyday life which is changing the demographics of diseases like TMD. This study compared the anxiety scores between TMD patients and normal subjects. Material and Methods. 505 individuals were included in the study who were divided into group 1 with 255 individuals presenting with signs and symptoms of TMD and group 2 with 250 normal individuals as controls. Hospital anxiety depression scale was used to calculate the anxiety scores. Fischer’s t test was used to compare the anxiety scores between the two groups. Results. 80% of individuals in group 2 and 44% in group 1 individuals had normal anxiety scores. 45% of the individuals in group 1 and 19% in group 2 had borderline anxiety scores. 11% of group 1 individuals and <1% of group 2 individuals demonstrated high anxiety scores. These results were statistically significant. Conclusion. Individuals with TMD exhibited higher levels of anxiety scores whereas significant number of control subjects exhibited normal anxiety scores.

scholarly journals Correlation of Tooth Contact Habit in Patients with Signs and Symptoms of Temporomandibular Disorders and Healthy Normal Subjects

2014 ◽  
Vol 02 (01) ◽  
pp. 022-025
Author(s):  
Subhash Vasudeva ◽  
Asha Iyengar ◽  
Nagesh Seetaramaiah
Keyword(s):  
Temporomandibular Disorders ◽  
Signs And Symptoms ◽  
Normal Subjects ◽  
Tooth Contact ◽  
Normal Individuals ◽  
Significant Difference ◽  
History Of ◽  
Males And Females ◽  
Group 2 ◽  
Group 1

Abstract Purpose: Temporomandibular disorders are among the common musculoskeletal conditions affecting the individual. Modern day lifestyle and work environment may introduce abnormal habits like constant tooth contact habit which may have a role in the pathogenesis of temporomandibular disorder. This study aimed to correlate the prevalence of tooth contact habits in individuals suffering from TMD and compare them with that of normal individuals without any signs and symptoms of TMD. Material and Methods: 505 individuals were included in the study. They were divided into 2 groups. Group 1 consisted of 255 individuals who presented with signs and symptoms of temporomandibular disorders and group 2 consisted of 250 normal individuals. Detailed case history with emphasis on habits of constant tooth contact was recorded. Fischer's t test was used to compare the results between the two groups. Results: In group 1,54.5% of males and 58.02% of females gave a history of tooth contact habit while in group 2 individuals 38.7% males and 39.8% females gave a history of this habit. There was no statistically significant difference between males and females of group 1 with regard to this habit. There was a statistically significant difference between group 1 and group 2 individuals (both males and females combined) with regards to this habit. (p= 0.0003) Conclusion: Individuals with temporomandibular disorders exhibited higher prevalence of tooth contact habit when compared to normal subjects.

Auditory Selective Attention in Cerebral-Palsied Individuals

1985 ◽  
Vol 16 (4) ◽  
pp. 260-266 ◽  
Author(s):  
Lee Ann Laraway
Keyword(s):  
Selective Attention ◽  
White Noise ◽  
Normal Subjects ◽  
Auditory Selective Attention ◽  
Normal Individuals ◽  
Significant Difference

The purpose of this study was to determine whether there is a statistically significant difference between the auditory selective attention abilities of normal and cerebral-palsied individuals. Twenty-three cerebral-palsied and 23 normal subjects between the ages of 5 and 21 were asked to repeat a series of 30 items consisting of from 2 to 4 digits in the presence of intermittent white noise. Results of the study indicate that cerebral-palsied individuals perform significantly poorer than normal individuals when the stimulus is accompanied by noise. Noise was not a significant factor in the performance of the normal subjects regardless of age.

scholarly journals Estimating the Binocular Visual Field of Glaucoma Patients With an Adjustment for Ocular Dominance

2016 ◽  
Vol 57 (7) ◽  
pp. 3276 ◽  
Author(s):  
Masato Matsuura ◽  
Kazunori Hirasawa ◽  
Mieko Yanagisawa ◽  
Hiroyo Hirasawa ◽  
Hiroshi Murata ◽  
...  
Keyword(s):  
Visual Field ◽  
Ocular Dominance ◽  
Binocular Visual Field

scholarly journals Optic Disc Vascularization in Glaucoma: Value of Spectral-Domain Optical Coherence Tomography Angiography

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Pierre-Maxime Lévêque ◽  
Pierre Zéboulon ◽  
Emmanuelle Brasnu ◽  
Christophe Baudouin ◽  
Antoine Labbé
Keyword(s):  
Visual Field ◽  
Univariate Analysis ◽  
Normal Subjects ◽  
Vessel Density ◽  
Spectral Domain ◽  
Control Group ◽  
Mean Deviation ◽  
Ganglion Cell Complex ◽  
Fiber Layer ◽  
Spectral Domain Oct

Purpose. To detect changes in optic nerve head (ONH) vascularization in glaucoma patients using spectral-domain OCT angiography (OCT-A).Material and Method. Fifty glaucoma patients and 30 normal subjects were evaluated with OCT-A (AngioVue®, Optovue). The total ONH vessel density and temporal disc vessel density were measured. Clinical data, visual field (VF) parameters, and spectral-domain OCT evaluation (RNFL: retinal nerve fiber layer thickness, GCC: ganglion cell complex thickness, and rim area) were recorded for glaucoma patients. Correlations among total and temporal ONH vessel density and structural and VF parameters were analyzed.Results. In the glaucoma group, total and temporal ONH vessel density were reduced by 24.7% (0.412 versus 0.547;p<0.0001) and 22.88% (0.364 versus 0.472;p=0.001), respectively, as compared with the control group. Univariate analysis showed significant correlation between rim area (mm2) and temporal ONH vessel density (r=0.623;p<0.0001) and total ONH vessel density (r=0.609;p<0.0001). Significant correlations were found between temporal and total ONH vessel density and RNFL, GCC, VF mean deviation, and visual field index.Conclusion. In glaucoma patients OCT-A might detect reduced ONH blood vessel density that is associated with structural and functional glaucomatous damage. OCT-A might become a useful tool for the evaluation of ONH microcirculation changes in glaucoma.

Use of a Modified Binocular Visual Field to Assess Cyclodiplopia

Ophthalmology ◽  
1987 ◽  
Vol 94 (3) ◽  
pp. 231-234 ◽  
Author(s):  
C. Gail Summers ◽  
Jane D. Lavoie ◽  
Robert D. Letson
Keyword(s):  
Visual Field ◽  
Binocular Visual Field

Comparing the usefulness of a new algorithm to measure visual field using the variational Bayes linear regression in glaucoma patients, in comparison to the Swedish interactive thresholding algorithm

2021 ◽  
pp. bjophthalmol-2020-318304
Author(s):  
Hiroshi Murata ◽  
Ryo Asaoka ◽  
Yuri Fujino ◽  
Masato Matsuura ◽  
Kazunori Hirasawa ◽  
...  
Keyword(s):  
Visual Field ◽  
Linear Regression ◽  
Open Angle Glaucoma ◽  
Variational Bayes ◽  
Mean Deviation ◽  
Test Duration ◽  
Field Analyser ◽  
Measurement Duration ◽  
Measurement Algorithm ◽  
Thresholding Algorithm

Background/aimsWe previously reported that the visual field (VF) prediction model using the variational Bayes linear regression (VBLR) is useful for accurately predicting VF progression in glaucoma (Invest Ophthalmol Vis Sci. 2014, 2018). We constructed a VF measurement algorithm using VBLR, and the purpose of this study was to investigate its usefulness.Method122 eyes of 73 patients with open-angle glaucoma were included in the current study. VF measurement was performed using the currently proposed VBLR programme with AP-7700 perimetry (KOWA). VF measurements were also conducted using the Swedish interactive thresholding algorithm (SITA) standard programme with Humphrey field analyser. VF measurements were performed using the 24–2 test grid. Visual sensitivities, test–retest reproducibility and measurement duration were compared between the two algorithms.ResultMean mean deviation (MD) values with SITA standard were −7.9 and −8.7 dB (first and second measurements), whereas those with VBLR-VF were −8.2 and −8.0 dB, respectively. There were no significant differences across these values. The correlation coefficient of MD values between the 2 algorithms was 0.97 or 0.98. Test–retest reproducibility did not differ between the two algorithms. Mean measurement duration with SITA standard was 6 min and 02 s or 6 min and 00 s (first or second measurement), whereas a significantly shorter duration was associated with VBLR-VF (5 min and 23 s or 5 min and 30 s).ConclusionVBLR-VF reduced test duration while maintaining the same accuracy as the SITA-standard.

Total CO2, Pco2, and pH in human spinal fluid

1961 ◽  
Vol 16 (3) ◽  
pp. 485-487 ◽  
Author(s):  
Carl R. Merril ◽  
Harry W. Seipp ◽  
Peter C. Luchsinger
Keyword(s):  
Confidence Interval ◽  
Normal Subjects ◽  
Spinal Fluid ◽  
Marked Individual ◽  
Arterial Blood ◽  
Normal Individuals ◽  
Individual Variations ◽  
Hasselbalch Equation

The relationships between pH, CO, tension and total CO2 in spinal fluid and arterial blood were explored in 12 normal individuals and 15 patients with various diseases. It was found that, in the normal subjects, the pH in the spinal fluid was constant, with a mean of 7.31 and 99 % confidence interval of 7.29–7.33. The pH in the spinal fluid was lower than that of the arterial blood in all patients studied, whereas the CO2 tension was found to average 4 mm Hg higher in the spinal fluid than in the arterial blood in most of the normal subjects studied. The pK1' was calculated for each patient's spinal fluid and arterial blood by the Henderson-Hasselbalch equation. In contrast to tonometry experiments, pK1' showed marked individual variations. The factors responsible for these variations are delineated. Submitted on November 7, 1960

Sign in / Sign up

Export Citation Format

Share Document