scholarly journals Visual Field Loss Morphology in High- and Normal-Tension Glaucoma

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Michele Iester ◽  
Fabio De Feo ◽  
Gordon R. Douglas
Keyword(s):  
Visual Field ◽  
Visual Fields ◽  
Visual Field Loss ◽  
Normal Tension Glaucoma ◽  
Blind Spot ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
High Tension ◽  
Significant Difference ◽  
Almost All

Purpose. To determine whether the patterns of visual field damage between high-tension glaucoma (HTG) and normal-tension glaucoma (NTG) are equivalent.Methods. In this retrospective cross-sectional study, fifty-one NTG and 57 HTG patients were recruited. For each recruited patient only the left eye was chosen. Glaucomatous patients had abnormal visual fields and/or glaucomatous changes at the optic nerve head. They were classified as HTG or NTG on the basis of intraocular pressure (IOP) measurements. Patients' visual fields were analyzed by using Humphrey Field Analyzer (HFA), program 30-2, full threshold. The visual field sensitivity values and the pattern deviation map values of the 72 tested points were considered. Then a pointwise analysis and an area analysis, based on the Glaucoma Hemifield test criteria, were performed, and a comparison between the two subgroups was made by Student’sttest.Results. Between NTG and HTG, no significant difference was found pointwise for almost all the visual field points, except for two locations. One was under the blind spot, and the other was in the inferior hemifield around the twenty-degree position. When area analysis was considered, three areas showed a significantly different sensitivity between HTG and NTG.Conclusions. These data suggested that there was no relevant difference in the pointwise analysis between NTG and HTG; however, when visual field areas were compared, no difference in paracentral areas was found between NTG and HTG, but superior nasal step and inferior and superior scotomata showed to be deeper in HTG than in NTG.

scholarly journals Visual Field Changes in Normal Tension Glaucoma (NTG)

2021 ◽  
Vol 15 (9) ◽  
pp. 2266-2267
Author(s):  
Ossama Ali Khan ◽  
Sajjad Mohammad ◽  
Imran Khan ◽  
Muhammad Faiq Nisar ◽  
Amir Khan ◽  
...  
Keyword(s):  
Visual Field ◽  
Open Angle Glaucoma ◽  
Visual Fields ◽  
Normal Tension Glaucoma ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Medical College ◽  
Paracentral Scotoma ◽  
The Right

Aim: To observe the visual field changes in normal tension glaucoma Study design: Cross sectional study Study site: Department of Physiology, Khyber Medical College, Peshawar Study period: six months Sample size: 100 cases were included who fulfil the criteria. Results: There were 33(33%) males and 67(67%) females in the study. Visual fields of eyes were investigated. It was revealed that in cases with the right eye problem, 67(67%) had paracentral scotoma, 27(27%) had superior & inferior nasal steps, 1(1%) had scotoma closer to fixation and 5(5%) had arcuate scotoma, while in the left eye cases, 67(67%) had paracentral scotoma, 30 (30%) had superior & inferior nasal steps, 1(1%) had scotoma closer to fixation and 2(2%) had arcuate scotoma. Conclusion: Visual fields of eyes revealed that in cases with the right eye problem, 67(67%) had paracentral scotoma, 27(27%) had superior & inferior nasal steps, 1(1%) had scotoma closer to fixation and 5(5%) had arcuate scotoma, while in the left eye cases, 67(67%) had paracentral scotoma, 30(30%) had superior & inferior nasal steps, 1 (1%) had scotoma closer to fixation and 2(2%) had arcuate scotoma. Keywords: Visual field, open angle glaucoma, normal tension glaucoma

scholarly journals Comparitive study between normal tension glaucoma and primary open-angle glaucoma

2021 ◽  
Vol 7 (3) ◽  
pp. 562-567
Author(s):  
Sowmya Shree B V ◽  
Bharathi N ◽  
Shwetha Kumari C ◽  
Ranjitha C Sadananda ◽  
Madhura M Khanapur
Keyword(s):  
Open Angle Glaucoma ◽  
Visual Fields ◽  
Normal Tension Glaucoma ◽  
Cross Sectional Study ◽  
Mean Deviation ◽  
Cross Sectional ◽  
Neuroretinal Rim ◽  
Significant Difference ◽  
Independent Risk Factors ◽  
Work Up

The study is conducted to determine the functional and structural differences between NTG and POAG, to assess the rate of conversion of NTG into POAG and its early intervention. It is a hospital based prospective, cross-sectional study of 56 NTG and 56 POAG patients. History was taken and comprehensive ophthalmic examination with glaucoma work up was done.Majority of the patients belonged to the age group between 51 and 60 years i.e. 48.2% in NTG and 62.5% in POAG. Majority of the NTG patients i.e. 33 (58.9%) were females while 41(73.2%) were males in POAG. 40% of NTG patients had systemic association like bronchial asthma, diabetes, hypertension, ischemic heart disease and migraine. There was no significant difference in CDR between two groups. Inferior & temporal neuroretinal rim thinning was more common in NTG. While bipolar thinning & superior rim thinning was more common in POAG. There is significantly more thinning of RNFL in POAG than NTG. The mean deviation (MD) & pattern standard deviation (PSD) in visual fields between NTG & POAG showed no significant difference. Whereas the field loss was near centre of fixation in NTG group compared to POAG which was diffuse. These differences between NTG and POAG suggest that the pathogenesis of NTG includes IOP and IOP independent risk factors, while IOP is the main risk factor in POAG. The parameters assessed determine the risk and progression of NTG to POAG.

scholarly journals Prevalence of Anxiety in Pregnancy during COVID 19 pandemic in Shree Birendra Hospital, Chhauni

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Shailaja Khadka ◽  
Sumana Thapa ◽  
Ratna Khatri ◽  
Rosy Malla ◽  
Sumana Thapa ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Demographic Data ◽  
Cross Sectional Study ◽  
Demographic Variables ◽  
Low Grade ◽  
Cross Sectional ◽  
Significant Difference ◽  
Ethical Approval ◽  
Almost All ◽  
In Pregnancy

Aim: To determine the prevalence of anxiety in pregnancy during COVID19 pandemic in Shree Birendra Hospital, Chhauni Method: It is a cross sectional study conducted at Shree Birendra Hospital Chhauni from July to October 2020 following the ethical approval from IRC. All the pregnant women from first to last trimester attending outdoor visit were included; they were asked to fill up Beck Anxiety Index form. The level of anxiety was compared with demographic data like age, race, parity, and period of gestation, education and occupation. Data were analyzed by using SPSS 20 software. Results: A total of 385 presumably uninfected pregnant women were surveyed in 20-40 (28.45±3.95) years age group from 4 to 41 (27.15±9.4) weeks of pregnancy and 55.6% were multipara. Low-grade anxiety was found 99.5% (BAI= 3.06±3.66). Conclusions: Low-grade anxiety was found in almost all pregnant women during covid pandemic and there was no significant difference by demographic variables.

scholarly journals Do age and time of practice predict the development of life skills among youth futsal practitioners?

2021 ◽  
Vol 21 (1) ◽  
pp. 135-145
Author(s):  
Gabriel Lucas Morais Freire ◽  
Adson Alves Silva ◽  
José Fernando Vila Nova Moraes ◽  
Nathan Leonardo Gomes Costa ◽  
Daniel Vicentini Oliveira ◽  
...  
Keyword(s):  
Multiple Regression ◽  
Life Skills ◽  
Cross Sectional Study ◽  
Skills Development ◽  
Cross Sectional ◽  
Significant Difference ◽  
Life Skills Development ◽  
Almost All ◽  
Total Life

La práctica del deporte ha sido considerada una de las principales herramientas para el desarrollo de habilidades para la vida entre los jóvenes participantes en el deporte. Este estudio transversal investigó el papel predictivo de la edad y el tiempo de práctica en el desarrollo de habilidades para la vida entre 207 practicantes de futsal masculinos, con edades comprendidas entre 12 y 17 años, del estado de Pernambuco, Brasil. Los instrumentos utilizados fueron la Escala de habilidades para la vida deportiva y un cuestionario semiestructurado. El análisis de los datos se realizó a través del Análisis de varianza multivariante, la correlación de Spearman y la Regresión múltiple (p <.05). Los resultados mostraron una diferencia significativa (p <.05; rango η2 .036-.142) en todas las habilidades para la vida según el grupo de edad, evidenciando puntuaciones más altas para los adolescentes mayores. Además, los adolescentes más experimentados mostraron puntajes más altos en la meta sentada (p = .001, η2 = .074); resolución de problemas (p = .013, η2 = .042), comunicación (p = .003, η2 = .054) y habilidades para la vida total (p = .002, η2 = .057). Hubo una correlación significativa (p <.05) y positiva entre la edad y casi todas las subescalas de habilidades para la vida. La regresión múltiple reveló que solo la edad presentaba predicciones positivas hacia las habilidades para la vida. Se puede concluir que la edad es un predictor del desarrollo de habilidades para la vida entre los jóvenes practicantes de fútbol sala. The practice of sports has been considered one of the main tools for the life skills development among youth sport participants. This cross-sectional study investigated the predicting role of age and time of practice in the development of life skills among 207 male futsal practitioners, aged between 12 and 17 years, from the state of Pernambuco, Brazil. The instruments used were the Life Skills Scale for Sports and a semi-structured questionnaire. Data analysis was conducted through Multivariate Analysis of Variance, Spearman’s correlation and Multiple Regression (p<.05). The results showed significant difference (p<.05; η2 range .036-.142) in all life skills according to age group, evidencing higher scores for older adolescents. Further, more experienced adolescents showed higher scores at goal seating (p=.001, η2=.074); problems solving (p=.013, η2=.042), communication (p=.003, η2=.054) and total life skills (p=.002, η2=.057). There was significant (p<.05) and positive correlation between age and almost all life skills subscales. Multiple regression revealed only age presented positive prediction toward life skills. It can be concluded that age is a predictor of life skills development among youth futsal practitioners. A prática esportiva tem sido considerada uma das principais ferramentas para o desenvolvimento de habilidades para a vida entre jovens praticantes de esportes. Este estudo transversal investigou o papel preditivo da idade e do tempo de prática no desenvolvimento de habilidades para a vida em 207 praticantes de futsal do sexo masculino, com idades entre 12 e 17 anos, do estado de Pernambuco, Brasil. Os instrumentos utilizados foram a Escala de Habilidades para a Vida Esportiva e um questionário semiestruturado. A análise dos dados foi realizada por meio da Análise Multivariada de Variância, correlação de Spearman e Regressão Múltipla (p <0,05). Os resultados mostraram diferença significativa (p <0,05; η2 variando de 0,036 a 0,142) em todas as habilidades para a vida de acordo com a faixa etária, evidenciando escores mais altos nos adolescentes mais velhos. Além disso, os adolescentes mais experientes apresentaram pontuações mais altas nos assentos para as metas (p = 0,001; η2 = 0,074); resolução de problemas (p = 0,013, η2 = 0,042), comunicação (p = 0,003, η2 = 0,054) e habilidades totais para a vida (p = 0,002, η2 = 0,057). Houve correlação significativa (p <0,05) e positiva entre idade e quase todas as subescalas de habilidades para a vida. A regressão múltipla revelou que apenas a idade apresentou predição positiva em relação às habilidades para a vida. Pode-se concluir que a idade é um preditor do desenvolvimento de habilidades para a vida entre jovens praticantes de futsal.

Scleral Buckling versus Vitrectomy for Retinal Detachment Repair: Comparison of Visual Fields and Nerve Fiber Layer Thickness

2015 ◽  
Vol 235 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Chryssanthi Koutsandrea ◽  
Menelaos Kanakis ◽  
Dimitrios Papaconstantinou ◽  
Dimitrios Brouzas ◽  
Ioannis Ladas ◽  
...  
Keyword(s):  
Visual Field ◽  
Retinal Detachment ◽  
Nerve Fiber ◽  
Visual Fields ◽  
Visual Field Loss ◽  
Scleral Buckling ◽  
Fiber Layer ◽  
Mean Values ◽  
Nerve Fiber Layer ◽  
Significant Difference

Purpose: To compare visual field loss and retinal nerve fiber layer (RNFL) defects in cases of rhegmatogenous retinal detachment (RRD) treated with scleral buckle (SB) versus pars plana vitrectomy (PPV) and C3F8 injection. Methods: This was a prospective, comparative interventional study of 50 eyes with primary RRD, treated with PPV (25 eyes) or SB (25 eyes). All measurements took place at least 9 months following successful and uncomplicated surgical treatment. The visual field total deviation (TD) values for preoperative attached and detached areas were calculated and compared separately. The optic nerve head morphology was studied with Heidelberg retinal tomography (HRT), and the RNFL using spectral-domain optical coherence tomography. Results: The preoperative detached areas demonstrated more affected TD values (in dB) compared to the preoperative attached areas (-6.9 ± 5.2 vs. -4.3 ± 3.3 for the SB group and -9.6 ± 5.2 vs. -7.8 ± 5.1 for the PPV group; p = 0.001) in both groups. The preoperative attached areas of the SB group showed better TD values (calculated mean values) compared to the preoperative attached areas of the PPV group (-4.3 ± 3.3 vs. -7.8 ± 5.1, p = 0.007). The RNFL and HRT values showed no statistically significant difference between the two groups. Conclusions: It seems that the preoperative detached retina, despite successful reattachment, suffers permanent damage as a result of the detachment, irrespective of the method of treatment. In the PPV group, the postoperative functionality of the preoperative attached areas was detected to be worse compared to the postoperative functionality of the preoperative attached areas of the SB group. We postulate that this fact could be attributed to an additional traumatizing factor (possibly fluid-air exchange or gas injection) in patients with RRD treated with PPV.

scholarly journals Intraocular asymmetry of visual field defects in primary angle-closure glaucoma, high-tension glaucoma, and normal-tension glaucoma in a Chinese population

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Junhong Jiang ◽  
Cong Ye ◽  
Cong Zhang ◽  
Wenqing Ye ◽  
Xiaoyan Wang ◽  
...  
Keyword(s):  
Visual Field ◽  
Normal Tension Glaucoma ◽  
Angle Closure Glaucoma ◽  
Angle Closure ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma ◽  
High Tension ◽  
Significant Difference ◽  
The Mean ◽  
Severity Levels

AbstractDirect comparison data on spatial patterns of visual field (VF) defects among primary angle-closure glaucoma (PACG), high-tension glaucoma (HTG) and normal-tension glaucoma (NTG) are not available. We aimed to compare the intraocular asymmetry of VF loss among patients with PACG, NTG and HTG across different severity levels. A total of 162 eyes of 114 patients with PACG, 111 eyes of 74 patients with HTG and 148 eyes of 102 patients with NTG were included. VF defects were categorized into 3 stages (early, moderate, and advanced), and each hemifield was divided into 5 regions according to the Glaucoma hemifield test (GHT). The mean total deviation (TD) of each GHT region was calculated. In the early stage, the paracentral, peripheral arcuate 1 and peripheral arcuate 2 regions in the superior hemifield in the NTG group had significantly worse mean TDs than their corresponding regions in the inferior hemifield. In the advanced stage, the central region in the superior hemifield in the PACG group had a significantly worse mean TD than that in the inferior hemifield. There was no significant difference in the mean TD for any of the five regions between hemifields across all severity levels in the in the HTG group. The superior hemifield was affected more severely than the inferior hemifield in all three subtypes of primary glaucoma. This asymmetric tendency was more pronounced in NTG than in PACG and HTG.

scholarly journals The Feasibility of Ultrasonographic Diaphragmatic Excursion in Healthy Dogs: Effect of Positioning, Diaphragmatic Location, and Body Weight of Dogs

2021 ◽  
Vol 8 ◽  
Author(s):  
Phasamon Saisawart ◽  
Somchin Sutthigran ◽  
Kumpanart Soontornvipart ◽  
Chutimon Thanaboonnipat ◽  
Damri Darawiroj ◽  
...  
Keyword(s):  
Body Weight ◽  
Cross Sectional Study ◽  
Ultrasound Technique ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Intrinsic Factors ◽  
Significant Difference ◽  
Healthy Dogs ◽  
The Right ◽  
Almost All

Diaphragmatic excursion (DE) has been utilized for detecting respiratory related problems in humans. However, several factors should be considered such as the ultrasound technique and factors intrinsic to patients. Nevertheless, knowledge of the effect of these factors on DE in dogs is still lacking. The aim of this study was to evaluate the proper ultrasound technique by varying postures and diaphragmatic locations for DE measurement and to explore intrinsic factors such as diaphragmatic sides, sex, and body weight of dogs on DE. The prospective, analytic, cross-sectional study included 44 healthy dogs; 12 beagles and 32 dogs of other breeds. The experiment was divided into (i) an exploration of the proper ultrasound technique by varying postures (supine, standing, and recumbent in each of the right and left lateral positions), diaphragmatic locations (middle crus and proximal to the last rib), and diaphragmatic sublocations (xiphoid, mid, and proximal rib) for detection of DE and (ii) the evaluation of canine intrinsic factors affecting DE. The results show that the mid-diaphragmatic sublocation in the middle crus area in almost all positions revealed the highest percentage DE detection. However, DEs were revealed to be more accessible in the supine position. There was no significant difference in DE between the right and the left diaphragms or between the sexes of beagle dogs. However, body weight was significantly correlated with the DE among dogs of various sizes. In conclusion, the posture of the dogs and the diaphragmatic location can affect DE evaluation. Neither sex nor diaphragmatic side had an influence, but body weight was revealed as a major factor in DE in dogs.

scholarly journals Differing Associations between Optic Nerve Head Strains and Visual Field Loss in Normal- and High-Tension Glaucoma Subjects

2021 ◽  
Author(s):  
Thanadet Chuangsuwanich ◽  
Tin Aung Tun ◽  
Xiaofei Wang ◽  
Zhi Yun Chin ◽  
Satish Kumar Panda ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Visual Field ◽  
Optic Nerve Head ◽  
Open Angle Glaucoma ◽  
Visual Field Loss ◽  
Temporal Region ◽  
Retinal Sensitivity ◽  
Cross Sectional ◽  
High Tension ◽  
Iop Elevation

Purpose: To study the associations between optic nerve head (ONH) strains under intraocular pressure (IOP) elevation with retinal sensitivity in glaucoma subjects. Design: Clinic based cross-sectional study. Participants: 229 subjects with primary open angle glaucoma (subdivided into 115 high tension glaucoma (HTG) subjects and 114 normal tension glaucoma (NTG) subjects). Methods: For one eye of each subject, we imaged the ONH using spectral-domain optical coherence tomography (OCT) under the following conditions: (1) primary gaze and (2) primary gaze with acute IOP elevation (to approximately 33 mmHg) achieved through ophthalmodynamometry. A 3-dimensional (3D) strain-mapping algorithm was applied to quantify IOP-induced ONH tissue strain (i.e. deformation) in each ONH. Strains in the pre-lamina tissue (PLT) and the retina, the choroid, the sclera and the lamina cribrosa (LC) were associated (using linear regression) with measures of retinal sensitivity from the 24-2 Humphrey visual field test (Carl Zeiss Meditec, Dublin, CA, USA). This was done globally, then locally according to the regionalization scheme of Garway-Heath et al. Main Outcome Measures: Associations between ONH strains and values of retinal sensitivity from visual field testing. Results: For HTG subjects, we found that (1) there were significant negative linear associations between ONH strains and retinal sensitivity (p<0.001) (on average, a 1% increase in ONH strains corresponded to a decrease in retinal sensitivity of 1.1 dB), (2) high strain regions co-localized with anatomically-mapped regions of high visual field loss, (3) the strongest negative associations were observed in the superior region and in the PLT. In contrast, for NTG subjects, no significant associations between strains and retinal sensitivity were observed except in the supero-temporal region of the LC. Conclusion: We found significant negative associations between IOP-induced ONH strains and retinal sensitivity in a relatively large glaucoma cohort. Specifically, HTG subjects who experienced higher ONH strains were more likely to exhibit lower retinal sensitivities. Interestingly, this trend was in general less pronounced in NTG subjects, which could suggest a distinct pathophysiology between the two glaucoma subtypes.

scholarly journals Optic Chiasm Width in Normal-Tension and High-Tension Glaucoma

2020 ◽  
Vol 76 (3) ◽  
pp. 126-128
Author(s):  
Ján Lešták ◽  
Martin Kynčl ◽  
Martin Fůs ◽  
Klára Marešová
Keyword(s):  
Visual Field ◽  
Visual Fields ◽  
Optic Chiasm ◽  
Control Group ◽  
Ophthalmological Examination ◽  
Field Of Vision ◽  
High Tension ◽  
Significant Difference ◽  
Electrophysiological Examination ◽  
Corpus Geniculatum Laterale

Purpose: The aim of our study was to find out whether in patients with hypertensive glaucoma (HTG) and normotensive glaucoma (NTG), there is a change in the size of the chiasm depending on the changes in the visual field. Therefore, we retrospectively measured the width of the chiasm in the patients to whom we measured the size of the corpus geniculatum laterale in 2013. Materials and methods: The group consisted of two groups of patients. Nine with hypertensive glaucoma (HTG) and nine with normotensive glaucoma (NTG). The diagnosis was based on a complex ophthalmological examination and in NTG and electrophysiological examination. The visual field was examined by a rapid threshold program on the Medmont M700. The sum of the sensitivity from both visual fields in the range of 0-22 degrees was compared with the width of the chiasm obtained by the magnetic resonance imaging using the eight channel head coil. The measured values of all subjects were analyzed using a paired t-test and a correlation coefficient. Results: We found a reduction in the chiasma width in both glaucoma groups. We found a statistically significant difference in the size of the chiasm (p = 0.0003) between the control group and the HTG group (p = 0.001). The narrowing of the chiasm showed a slight correlation in HTG with changes in the field of vision (r = 0.139) and in NTG a moderate correlation (r = 0.375). Conclusion: We found a reduction in the size of the chiasm in both HTG and NTG. The sum of sensitivities in the central parts of the visual field, however, more correlated with the reduction in the size of the chiasm in NTG. This finding shows that there are two different diagnostic groups.

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