scholarly journals Distribution of Ocular Anterior and Posterior Segment Lengths Among a Cataract Surgical Population in Shanghai

2021 ◽  
Vol 8 ◽  
Author(s):  
Jiao Qi ◽  
Wenwen He ◽  
Jiaqi Meng ◽  
Ling Wei ◽  
Dongjin Qian ◽  
...  
Keyword(s):  
Anterior Segment ◽  
Anterior Chamber Depth ◽  
Cross Sectional Study ◽  
Posterior Segment ◽  
Segment Length ◽  
Cross Sectional ◽  
Entire Study ◽  
Study Population ◽  
The Mean ◽  
Male Subjects

Purpose: To investigate the distributions of the ocular anterior and posterior segment lengths among a cataract surgical population in Shanghai.Design: Cross-sectional study.Methods: Ocular biometric parameters of 23,462 eyes of 23,462 cataract surgery candidates were reviewed. Axial length (AL), anterior chamber depth (ACD), and lens thickness (LT) were obtained using IOL Master. Anterior segment length (ASL = ACD + LT), posterior segment length (PSL = AL – ASL) and the ratio of ASL to PSL (ASL/PSL) were calculated.Results: The mean ASL was 7.58 ± 0.39 mm, the mean PSL was 17.12 ± 2.64 mm. As the age grew, the ASL increased, and PSL increased firstly then decreased. Male subjects tended to have significantly longer ASL and shorter PSL than female subjects. With the increasing AL, the ASL was firstly decreased to trough at 20–22 mm AL group, then increased gradually, while the PSL increased rapidly. The ASL correlated positively with AL in normal, moderate and highly myopic eyes, negatively in short eyes. The PSL correlated positively with AL across the entire study population. The ASL/PSL was not constant in the eyes with different AL but had a relatively steep downward trend with the increasing AL in the short eyes, then decreased smoothly in normal, moderate and highly myopic eyes.Conclusions: In Chinese cataractous eyes, longer ASL and shorter PSL were associated with elder age and male gender. The change of ASL over AL was not linear, and the ASL was smallest in the eyes with AL of 20–22 mm. The elongation of the eyeball was mainly due to the extension of the posterior segment.

Lens power in Iranian schoolchildren: a population-based study

2017 ◽  
Vol 102 (6) ◽  
pp. 779-783 ◽  
Author(s):  
Hassan Hashemi ◽  
Reza Pakzad ◽  
Rafael Iribarren ◽  
Mehdi Khabazkhoob ◽  
Mohammad Hassan Emamian ◽  
...  
Keyword(s):  
Anterior Chamber Depth ◽  
Multiple Linear Regression Model ◽  
Population Based ◽  
Cross Sectional Study ◽  
Cluster Sampling ◽  
Cross Sectional ◽  
Total Study Population ◽  
Study Population ◽  
The Mean ◽  
Lens Power

AimsTo evaluate lens power (LP) in schoolchildren aged 6–12 years.MethodsThis cross-sectional study was conducted in Shahroud, northeast Iran. The students were selected through random cluster sampling and underwent the measurements of biometry, uncorrected and corrected visual acuity, non-cycloplegic and cycloplegic refraction. The LP was calculated using the Bennett formula.ResultsOf 6624 invited children, 5620 (84.8%) participated in the study and data of 4870 children were finally analysed. The mean age of the participants was 9.7 years and 2277 participants (46.02%) were girls. The mean LPs were 22.86 dioptres (D) in total study population, 23.91 D in 6 and 22.10 D in 12-year-old children. The mean LP was higher in girls than boys (23.48 D vs 22.34 D), in rural children than urban children (23.17 D vs 22.83 D) and in children with hyperopia (23.25 D) than children with myopia or emmetropia (22.64 D and 22.86 D, respectively). In the multiple linear regression model, lens thickness (β=1.59, p<0.001), anterior chamber depth (β=2.21, p<0.001) and female sex (β=0.016, p=0.015) were associated with an increase in the LP, while axial length (AL) (β=−4.41, p<0.001), corneal power (CP) (β=−1.47, p<0.001), spherical equivalent (SE) (β=−1.50, p<0.001) and age (β=−0.005, p=0.001) were associated with a decrease in the LP. AL and sex had the highest and lowest impact on LP, respectively.ConclusionLP decreased with age between 6 and 12 years and was associated with a shorter AL, deeper ACD, higher SE, thicker lens and lower CP.

scholarly journals Prevalence of Dental Caries in Children

2021 ◽  
Vol 11 (1) ◽  
pp. 4-6
Author(s):  
Muhammad Alam Sikder ◽  
Tasneem Faruqui ◽  
KM Abdullah Al Harun ◽  
Sajjad Mahmud ◽  
Radia Faruqui
Keyword(s):  
Cross Sectional Study ◽  
Health Condition ◽  
Cross Sectional ◽  
Once Daily ◽  
Decayed Tooth ◽  
Dmft Index ◽  
Study Population ◽  
The Mean ◽  
Status Data ◽  
Oral Condition

This cross sectional study on oral condition among school going children in Sylhet city was conducted at Osmani Medical High School, Dorgah Gate, Sylhet, Bangladesh. This study was carried out on 8th October, 2019 among 208 students, mostly 12 years aged studying in Class VI. The main objective of the study was to assess the oral health condition of school going children through decayed, missing, and filled teeth (DMFT) status. Data was collected by personal interview and clinical examination of the respondents. Among 208 children, 96 (46.2%) were boys and 112 (53.8%) were girls. Among all, 63 (30.3%) respondents brush their teeth once daily while 137 (65.9 %) respondents brush twice a day, and 8 (3.8 %) of them brush their teeth more than twice daily. Fluoride containing toothpaste is used by 73 (35.1 %) students, 112 (53.8 %) students did not know whether their toothpaste contain fluoride or not, and 23 (11.1 %) students do not use fluoride. Among all respondents, 125(60.09 %) did not have any decayed tooth, while 83(39.90 %) had tooth decay, and 20(9.6 %) had their teeth filled. Normal gingival condition was found in 185 (88.94 %) subjects, but 23(11.06 %) of them had red or swollen gingiva. The mean DMFT of the study population was 1.19 which is considered as “low” according to “WHO quantification for the DMFT index”. Update Dent. Coll. j: 2021; 11 (1): 4-6

scholarly journals Waist Circumference, Blood Pressure and Lifestyle of Sudanese Population, Khartoum Locality, Sudan 2016

2019 ◽  
pp. 1-8
Author(s):  
Asma Abdelaal Abdalla ◽  
Siham Ahmed Balla ◽  
Amna Abdalla Babiker ◽  
Safaa Abdelhameed Medani ◽  
Rania Abdalla Osman Khalfa ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Waist Circumference ◽  
Physical Exercise ◽  
Age Distribution ◽  
Cross Sectional Study ◽  
P Value ◽  
Cross Sectional ◽  
Men And Women ◽  
Study Population ◽  
The Mean

Aims: To measure the waist circumference of Sudanese adults in Khartoum Locality and its relationship to blood pressure and lifestyle  during celebration of international day of hypertension in May 2016 . Study Design: It was a descriptive cross-sectional study. Place of the Celebration: Khartoum Locality at Alsahaa Alkhadraa (The Green Park). Methodology: A total of 364 adult participants, 196 men and 168 women were interviewed using structured questionnaire. Blood pressure (BP) was measured considering hypertension as ≥ 140 mmHg and ≥ 90 mmHg for systole and diastole BP respectively. Waist circumference was measured using an anthropometric measuring tape at cut-off point of 94 cm and 80 cm for men and women respectively. Data was managed by SPSS version 20 and Chi-square test at 95% CL was used to test the association between waist circumference, blood pressure and life style characteristics. Results: Age distribution of the study population showed 48.2% females and 45.4% males in the middle age group (38-57 years). Two thirds of the study population were hypertensive, 62.8% of males and 64.3% of females. The mean waist circumference of men was 97.82 cm + 16.7, mean Systolic BP was 127 + 22 and mean Diastolic BP was 85 + 15. The mean waist circumference of women was 99.31 + 16.2, mean Systolic was 128 + 24 and mean Diastolic BP was 84 +17. Abnormal waist circumference was found in 61.2% of males and 86.9% of females. Fifty nine (30.1%) of the males and 86 (51.2%) of the females with abnormal waist circumference were hypertensive. The association between abnormal waist circumference and high blood pressure was significant among both sexes, P value = 0.001. Physical exercise and fat and salt foods were not significantly associated waist circumference in both men and women. Conclusion: Two thirds of women and men in the celebrating areas were hypertensive.  Half of women and one third of men were significantly hypertensive and having abnormal waist circumference. Doing physical exercise, avoiding fat and salt foods was insignificantly associated with normal waist circumference. Large survey with representative sample is needed to estimate the real Sudanese waist circumference.  

scholarly journals Oculo-Visual Findings among Industrial Mine Workers at Goldfields Ghana Limited, Tarkwa

2012 ◽  
Vol 4 ◽  
pp. OED.S9204 ◽  
Author(s):  
GO Ovenseri-Ogbomo ◽  
S Ocansey ◽  
EK Abu ◽  
S Kyei ◽  
SB Boadi-Kusi
Keyword(s):  
Visual Impairment ◽  
Demographic Data ◽  
Cross Sectional Study ◽  
Eye Diseases ◽  
Sectional Study ◽  
Cross Sectional ◽  
Visual Status ◽  
Study Population ◽  
The Mean ◽  
Mine Workers

Objective The focus of this study was to evaluate the visual status of mine workers who were directly involved in mining and/or are exposed to the mining environment. Methods A hospital based cross-sectional study was conducted. Four hundred and six (406) workers were conveniently sampled for the study. Information on their socio-demographic data was also collected. In addition, all participants underwent ophthalmic examination. Results The mean age of the workers was 41.1 years. Visual impairment was found in 114 (28.1%) of the study population of which refractive error (56.8%) was the major cause. Presbyopia was also observed in 45.5% of the workers with only 30.3% of them wearing near correction. The prevalence of eye diseases were pterygium/pingueculae (25.8%), conjunctivitis (26.8%), suspected glaucoma (15.3%), and cataract (7.4%). Conclusions Visual impairment and eye diseases were found among the miners.

PREVALENCE OF CONSANGUINEOUS MARRIAGES AMONG IRANIAN GEORGIANS

2010 ◽  
Vol 43 (1) ◽  
pp. 47-50 ◽  
Author(s):  
LALEH RAFIEE ◽  
MOSTAFA SAADAT
Keyword(s):  
Cross Sectional Study ◽  
Consanguineous Marriage ◽  
Cross Sectional ◽  
Isfahan Province ◽  
Consanguineous Marriages ◽  
Adverse Health Outcomes ◽  
Present Cross Sectional Study ◽  
Study Population ◽  
The Mean ◽  
High Level

SummaryConsanguineous marriage – marriage between relatives – has received a great deal of attention as a potential risk factor for many adverse health outcomes. The present cross-sectional study was done in order to illustrate the prevalence and types of consanguineous marriages among Iranian Georgians living in Frydoonshahr (Isfahan province, central Iran). Data on consanguineous marriages were collected using a simple questionnaire. The total number of couples in this study was 646. Consanguineous marriage was classified by the degree of relationship between couples. First cousin marriages (14.2%) were the most common type of consanguineous marriages, followed by second cousin (7.0%), beyond second cousin (1.5%) and first cousin once removed (0.6%). The mean inbreeding coefficient (α) was calculated as 0.0104 for the population. The present study shows that the study population, as other Iranian populations, has a high level of consanguinity.

scholarly journals Distribution of White-to-White Corneal Diameter and Anterior Chamber Depth in Chinese Myopic Patients

2021 ◽  
Vol 8 ◽  
Author(s):  
Guihua Xu ◽  
Guanrong Wu ◽  
Zijing Du ◽  
Shanqing Zhu ◽  
Yunxiang Guo ◽  
...  
Keyword(s):  
Anterior Chamber ◽  
Age Groups ◽  
Anterior Segment ◽  
Anterior Chamber Depth ◽  
Distribution Patterns ◽  
Normal Range ◽  
Cross Sectional ◽  
Significant Difference ◽  
Study Population ◽  
Corneal Diameter

Purpose: To investigate the distribution of white-to-white (WTW) corneal diameter and anterior chamber depth (ACD) in Chinese myopia patients.Methods: This was a cross-sectional observational study conducted at five ophthalmic centers. Anterior segment biometry was performed in 7,893 eyes of the 7,893 myopic patients using Pentacam, and the WTW and ACD were recorded. The distribution patterns of WTW and ACD were evaluated and the correlation between WTW and ACD was analyzed statistically.Results: There were 4416 (55.95%) males and 3477 (44.05%) females. The age of the study population was 25.14 ± 5.41 years. Distribution of WTW was slightly positively skewed (Skewness = 0.0076, Kurtosis = 0.3944, KS P = 0.020) with a mean of 11.65 ± 0.38 mm and a 95% normal range of 10.91–12.39 mm. A significant difference in WTW was found among different myopia groups (P &lt; 0.001). The ACD was normally distributed (Skewness = 0.899, Kurtosis = 0.027, KS P = 0.086). The mean ACD was 3.25 ± 0.26 mm and the 95% normal range of was 2.74–3.75 mm. A significant difference in ACD was also found among different myopia groups (P = 0.030). There was a significant correlation between WTW and ACD (r = 0.460, P &lt; 0.001).Conclusions: In our study, 95% of the Chinese myopic patients had a WTW within 10.91–12.39 mm and an ACD within 2.74–3.75 mm. ACD and WTW were significantly different among different myopia, gender and age groups. WTW was positively correlated with ACD.

scholarly journals Mean difference of visual acuity with auto refraction and subjective refraction.

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Shakeel Ahmad ◽  
Rashida RIaz ◽  
Muhammad Haseeb ◽  
Hafiza Ammara Rasheed ◽  
Samia Iqbal
Keyword(s):  
Visual Acuity ◽  
Demographic Data ◽  
Anterior Segment ◽  
Cross Sectional Study ◽  
Mean Difference ◽  
P Value ◽  
Cross Sectional ◽  
Department Of Ophthalmology ◽  
The Mean ◽  
Cylindrical Axis

Purpose: To compare the mean difference of visual acuity as measured by auto refraction and subjective refraction. Study Design:  Descriptive cross-sectional study. Place and Duration of Study:  Department of ophthalmology, Services hospital Lahore from November 2013 to April 2014. Material and Methods:  Using non-probability consecutive sampling 300 eyes of 300 patients fulfilling inclusion criteria were recruited through OPD registration slip. Demographic data including age and gender was recorded. Complete ophthalmic examination was performed. This included measurement of refractive error by auto-refraction as well as subjective refraction. Detailed anterior segment examination with slit lamp and dilated fundus examination with indirect ophthalmoscopy was performed. The collected data was analyzed by using software SPSS version 17. Results:  The mean age of patients was 34.71 ± 7.45 years. There were 156 (52%) males and 144 (48%) females. There were 263 (87.69%) patients who had visual acuity of 6/6 and 37 (12.33%) had 6/9. Mean spherical auto-refraction and subjective refraction was 0.0290 ± 2.58 and -0.2842 ± 2.37 D with mean difference of -0.3133 ± 1.27 D. The mean cylindrical auto and subjective refraction in this study was -.9742 ± 0.78 D and -0.7500 ± 0.81 D and mean difference was 0.2242 ± 0.74 D. The mean cylindrical axis of auto and subjective refraction was 114.88 ± 49.75 and 115.60 ± 49.70 with mean difference as 0.72 ± 3.02 D (p-value < 0.05). Conclusion:  Difference of spherical, cylindrical and cylindrical axis in auto and subjective refraction was significantly different.

scholarly journals Effects of Exposure to Cotton Dusts on FVC, FEV1, and FEV1/ FVC% in Male Cotton dust Workers

2016 ◽  
Vol 11 (1) ◽  
pp. 35-38
Author(s):  
Md Abul Hasanat ◽  
Chandra Rani Sarkar ◽  
ATM Zoadur Rahim Zahid
Keyword(s):  
Cross Sectional Study ◽  
Dust Exposure ◽  
Cotton Dust ◽  
Cross Sectional ◽  
Medical College ◽  
Exposed Workers ◽  
The Mean ◽  
Male Subjects ◽  
Harmful Effects ◽  
Apparently Healthy

Background: Workers in environment with cotton dust exposure are at risk of development of occupational pulmonary functional disorder.Objectives: To observe the effects of cotton dust exposure on FVC, FEV1, FEV1/FVC% in male cotton dust worker.Methods: This cross-sectional study was carried out in the department of physiology, Rangpur Medical College, Rangpur from 2014’july to 2015’July. Total 25 apparently healthy non-smoker male workers aged 20-40 years, exposed to cotton dust for at least 6 months, were selected from different fabric weaving and cotton ginning factories of Rangpur district. Twenty five age & BMI matched apparently healthy male subjects, not exposed to cotton dusts were taken as control. FVC, FEV1 and FEV1 /FVC% of all subjects were recorded by using a digital spirometer. For statistical analysis, unpaired‘t’-test was performed.Results: The mean percentage of predicted value of FVC, FEV1 were significantly lower (p<0.001) in cotton dust exposed workers (CD-EW) than those of control. The mean percentage of predicted value of FEV1 / FVC% in CD-EW is slightly decreased compared to control but it was not statistically significant.Conclusions: From the result of this study it can be concluded that cotton dust (CD) may have harmful effects on some pulmonary function.Bangladesh Soc Physiol. 2016, June; 11(1): 35-38

scholarly journals Contraceptive User’s Profile

2016 ◽  
Author(s):  
Eka R Gunardi
Keyword(s):  
Obstet Gynecol ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Contraceptive Methods ◽  
Cross Sectional ◽  
Study Population ◽  
The Mean ◽  
The Difference ◽  
Almost All ◽  
The Cost

Objective: To obtain informations regarding the profile of contraceptive users in Raden Saleh Clinic, Jakarta. Method: A cross-sectional study was conducted in June 2012, at Raden Saleh Clinic, Jakarta. The study population was the patient who came to Raden Saleh Clinic from 2008 until 2011. Results: The mean age of the contraception users was 34.06 and the mean of their husband’s age was 38.91 years old. Most of the patients were graduated from senior high school (43.2%) and university (37.9%). More than half of the patients (55.2%) were not working and more than a half of their husband (53.2%) were private employee. Almost all (92.6%) of the patient were married. Most of the patient (38.8%) came with no prior contraception. After consultation, all patients had chosen their preferred contraceptive methods, namely IUD (61.4%), injectable contraception (20.9%), pill (13.7%), sterilization (3.4%), and implant (0.6%). Conclusion: Family planning reduces maternal mortality and the best method is different for each patient because of the difference in their own condition and the consideration of the cost and benefit. [Indones J Obstet Gynecol 2013; 1-4:179-82] Keywords: contraception, contraceptive users profile

Đặc điểm dân số học, vị trí tổn thương và mô bệnh học bệnh mô bào Langerhans ở trẻ em

2020 ◽  
Author(s):  
Tuan Nguyen Minh
Keyword(s):  
Langerhans Cell Histiocytosis ◽  
Soft Tissues ◽  
Cross Sectional Study ◽  
Langerhans Cell ◽  
The Body ◽  
Cross Sectional ◽  
Abnormal Accumulation ◽  
Study Population ◽  
The Mean ◽  
Cell Disorder

Histiocytic disorders in children and adults are caused by an abnormal accumulation of cells of the mononuclear phagocytic system. Langerhans cell histiocytosis (LCH) is a myeloid-derived dendritic cell disorder. The disease may affect any organ or system of the body, but those more frequently affected are the skin, bone and lymph nodes. Objectives: To evaluate characteristics of demography, location of lesions and histopathology of LCH. Methods: Cross sectional study of 80 children who have been performed biopsy with pathological diagnosis of LCH at Children’s Hospital 1 from Jan 2015 to Dec 2019. Results: LCH was encountered in children from 1 month to 12 years old in the study population. The mean age is 3.1 ± 2.7 (years) and in both male and female (M: F= 1.7/1). The most frequent sites of lession are skin and soft tissues. Conclusion: Langerhans cell histiocytosis is a malignant disease that may be encountered in clinical practice with different sites of lesions. LCH should be thought of when suspected and diagnosed early by histopathology to help guide treatment promptly and appropriately

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