Introduction: Intraocular lens (IOL) implants are monofocal and trifocal lenses which helps to clear up the vision after cataract surgery. Goal: In this work, we aimed to compare the monofocal and trifocal IOL implantation during phacoemulsification surgery. Materials and Methods: This study was conducted on 133 participants. Females comprised n=81, mean n=52 into equal groups. Preoperative and Postoperative cataract surgery UCVA and BCVA were measured and compared during the after 1 day, week 1, 2 weeks and month1. Statistical analysis: The results of the study were processed using the SPSS 25.0 program after coding the data and checking for typographical errors. The normality of the data distribution was tested by inspecting a histogram. Categorical variables were compared using the chi-square test or Fisher's test. Statistical significance was determined at a p-value lower than 0.05 Ethical statement: The study was approved by the Research Ethics Committee of the Mongolian National University of Medical Sciences (No.2021/05/21). All patients provided written informed consent before participating in this study. Results: The mean preoperative UCVA was 1.09±0.45D in monofocal IOL group, 0.99±0.49D in trifocal IOL group. At the first week: The mean postoperative UCVA at one week was 0.34±0.29D and 0.27±0.17D, in each group respectively. The mean postoperative BCVA in the first week was 0.28±0.27D and 0.20±0.15D in each group respectively. The mean postoperative UCVA at 1 month was 0.27±0.24D and 0.15±0.16D in each group, while BCVA was 0.26±24.94D and 0.06±0.63D.There was a highly significant statistical difference between the result of UCVA preoperative and the results of UCVA at the early and last postoperative follow up. Conclusion From our results, the best corrected visual acuity and was better for Trifocal group than Monofocal group. It is evident that post-operative near UCVA and BCVA was statistically significant at monofocal and trifocal groups.

Аbstract Ischemic heart disease (IHD) remains one of the most important disorders associated with disability and mortality worldwide, and is one of the major causes of cardiovascular diseases in Mongolia. The objective of the current study was to determine the prevalence of IHD and its related factors in a general population in Mongolia.
We conducted a nationwide cross-sectional survey between March and September, 2009. General participants were recruited from urban to rural regions in a multistage random cluster sampling method. The diagnosis of IHD was based on the Rose questionnaire and electrocardiographic findings. A total of 369 (16.2%) subjects with IHD were diagnosed among 2280 participants. The prevalence of subjects with IHD was significantly increased by age: from 9.9% in individuals age 40-44 years compared to 17.7% in those over 60 years. Smoking habits (former and current) and non-frequent intake of fruits and vegetables were significantly positively associated with IHD in men, while heavy alcohol drinking habits and lower education period of time were significantly positively associated with IHD in women.
IHD was found to be prevalent, especially among people aged over 40 years, in Mongolia. Statistical factors related to IHD were found to be significantly different based on sex. The current data may provide relevant information to prevent IHD in the Mongolian population.

Correlation between delay time of surgery of congenital cataract and postoperative visual acuity Introduction: Worldwide, child cataract is 1 to 15 cases per 100,000 children are diagnosed. In the International Classification of Diseases, pediatric cataracts are classified as congenital (Q12) and developmental (H26.0). Congenital cataract occurs in 1–3 out of 10,000 children, and if diagnosed, surgery is required without delay. International researchers report that congenital cataracts require semi-emergency surgery. It is also recommended that children with congenital cataracts be diagnosed after 3 months of age without surgery. Congenital cataracts are recommended for surgery in one eye within 6 weeks and in both eyes within 10 weeks. Early detection of congenital cataracts and emergency surgical treatment are important to improve postoperative visual outcome and quality of life. To investigate the correlation between the surgical delay time and postoperative visual acuity in children diagnosed with congenital cataracts. Material and methods: This study conduct based on the ophthalmic surgery department of the National Center for Maternal and Child Health, performed for a retrospective longitudinal study design. The study examined cases of congenital cataracts in both eyes and retrospectively follow patients who had congenital cataract surgery in 2018-2020 from the onset of symptoms to the postoperative period. The sample size was calculated using open.epi. We sampled participants for non-probabilistic purposes. The study included children 1 year of age and younger or with nystagmus, cataract with nuclear and polar morphology , and bilateral cataracts Statistical analysis was performed using STATA 16.0 software. The risk of delay time to visual acuity was determined by an ordinal regression model. Results: The study included 46 cases of congenital cataracts, under the age of 16. 61 percent of the children were male and 58.7 percent were from rural areas. The postoperative visual acuity of the children in the study was <0.09 in 52.2% (n = 24) and 0.1

Eye injuries and traumatic cataract in children Background: Ocular trauma in children accounts for 8% to 14% of the total injuries. Childhood eye injury is different from adult ocular trauma in terms of the objects involved in causing injury, evaluation, and management protocols. This study aimed at investigating the current causes, types and outcomes of pediatric ocular and traumatic cataract. Materials and methods: A retrospective observational study of all children admitted to hospital with ocular trauma and traumatic cataract in NCMCH over a 2 years period. Results: There were 126 cases representing, 68.3% were boys and 31.7% girls. 81 8 % were boys and 18-2 % girls. The risk of eye injury in girls was low and stable at all ages, except toddler age, but in boys the risk grew markedly at the age of 4-6 years. The commonest cause of injury was a sharp objects. Other important causes were wooden sticks, pen, pencil and fell from high. Overall, open-globe injuries had a higher frequency (42%) than closed-globe injuries (26.9%). The home was the commonest environment for an eye injury (47.6%). Regarding persons causing the injury, by themselves (61%) was the commonest, followed by child’s friends (24.6%). Total 15.6% of patients retained visual acuity 20/40 or better, while 44.4% of patients resulted visual acuity less than 20/400. In case of traumatic cataract, total 33.3% of patients retained visual acuity 20/40 or better, 14.8% of patients resulted visual acuity less than 20/400 Conclusion: This study describes the clinical characteristics of patients hospitalized for ocular trauma at NCMCH. Health education and awareness are essential tools that can prevent avoidable blindness due to ocular trauma in the pediatric population.

Aim: The aim was to determine etiology and clinical presentation of pediatric cataract during 1 year period Methods: NCMCH is tertiary and referral center for all pediatric patients with cataracts in 21 provinces and UB. Database contains cases during 1 year period. We have recorded the following data from the medical histories of these patients: family history, current age, age at diagnosis, age at surgery either eye, morphology of cataracts, laterality, associated findings and other investigations which were performed as clinically indicated. We have operated 80 children in total during 1 year period, however the study included 68 patients (91), eyes excluding 12 patients. Results: Of 68 children with cataract 76.% were non traumatic, 21,15% hereditary, 51,9% were congenital/infantile, 35.8% were unilateral, 44% were associated other ocular findings, 25% were associated systemic disease. 33.3% were diagnosed and operated 0-12 months. 73% of congenital/infantile cataract patients were nystagmus. Of traumatic cataract 76,5% due to penetrating trauma. Conclusions Patients of pediatric cataract 1/3 were usually diagnosed in 0-12 months. 1/3 of these patients were diagnosed congenital cataract whereas 1/4 were nystagmus. To add up associating congenital/infantile cataract with Down syndrome weren’t rare.

INTRODUCTION: Poor controlled hypertension is associated with development of target organ damage and theassessment of target organ damage is important in the evaluation of all hypertensive patients as itprovides important information on the severity of the hypertension, the cardiovascular risk and guidemanagement of individual patient.GOAL: The aim of this study to determine frequency of target organ damage among hypertensiveoutpatients at district hospitals in Ulaanbaatar.MATERIAL AND METHODS:This was a cross-sectional hospital based study. Total 150 hypertensive outpatients aged 40-70years were consecutively recruited into the study at district hospitals in Ulaanbaatar. Standardizedquestionnaires were used to collect socio-demographic characteristics and data about diseasehistory that shows hypertensive complication. Target organ damage was assessed by physicalexamination, urine test, serum total cholesterol test, eye fundoscopy and ECG.RESULTS:Among study participants, 130 (86.7%) patients had at least one of the four hypertensive targetorgan damage studied. The most affected organ was the eye presenting as retinopathy observedin 109 (72.7%), followed by left ventricular hypertrophy 107 (71.3%), stroke 20 (13.3%), andproteinuria in 17 (11.3%) patients. Only 42 (28%) had controlled blood pressure, 108 (72%) of thestudy participants had uncontrolled blood pressure.CONCLUSION:This study showed a high frequency of target organ damage among hypertensive patients attendingmedical outpatient clinic. These findings illustrate the burden of uncontrolled hypertension in oursetting.

Background:This study reports a literature review aimed to assess studies related to the efficacy of various herbs in diabetes mellitus used in Bhutan. The incidence of Diabetes Mellitus is rising and many of the diabetics frequently use herbal treatments along with modern medical treatment for glyceamic control and improving their well-being. Methods: An electronic database (Pub med) was searched for 2002-2014 period and 31 related articles were assessed. Result: Many studies-mostly animal trials- have been conducted in this field. Among the herbs, we searched for Phyllantus emblica Linn., Curcuma longa Linn., Berberies aristata Berberidaceae, Tribulus terristries Linn., and Thlaspi arvense Linn. Their chemical compositions, ethno medical uses and anti diabetic activities were summarized. In the search using the keywords ‘phyllantus emblica and diabetes mellitus’’ 19 articles were found. Likewise 48 articles were found with the keyword ‘curcuma longa and diabetes mellitus’ but only 45 articles were of within 2002. 2 articles were found with the keywords ‘berberies aristata and diabetes mellitus’ and 4 articles with ‘tribulus terristries and diabetes mellitus’. As for the ‘thlaspi arvense and diabetes mellitus’ no articles were available. Conclusion: Almost all ingredients of Churu-5 showed effective result in the study done by others.

Background During the last ten years cardiovascular disease has became one of the priority cause of death in Selenge province, while 23.9 cases in 10.000 population. Studying cause of increasing cardiovascular disease by year and year, connecting with arterial hypertension control and influenced factors is our research work background.GoalTo determine uncontrolled arterial hypertension and evaluate its influenced factors among the population with arterial hypertension in Selenge province.Objectives:1. Research uncontrolled arterial hypertension among the population2. Determine factors that influence uncontrolled arterial hypertensionMaterials and Metods: Research model: Population based moment model of analitic research is used to survey control of population with arterial hypertension. Research coverage and Sampling: Eruu, Zuunburen, and Khutul soums were chosen from 23 soums including center of Selenge province through the random sampling. And then 480 people with arterial hypertension, aged above 18 years were participated in the research. Data was analysed by SPSS 17 program. Collecting information method: Situation of arterial hypertension control is taken by questionnaire method developed by collaboration with WHO and International Association of Arterial Hypertension, and whether follow the drug treatment instruction of physicians is evaluated by MMAS questionnaire method developed by Association of Control Case Managment of America. Arterial hypertension, weight and height of participants were measured. Although people with arterial hypertension under 140-90 mm.Hy are reported “people who are controlling their arterial pressure in normal rate”.ResultsTotally 480 people with arterial hypertension, aged above 18 years were chosen from of Eruu, Zuunburen, and Khutul soums and center of Selenge province. Approximetly, 29.1 percent were male, 70.8 percent were female and average age was 52.43. About 34 percent were high education, 85.8 percent were married and 34.4 percent were retired people. According to the survey, 68 people or 14.1 percent were controlled their arterial pressure/hypertension in normal rate, 412 people or 85.8 percent were uncontrolled their arterial pressure/hypertension in normal rate. Because of the arterial hypertension 59 percent of the participants were under control of physicians. Also there was difference on age and gender with statistical benefit. (p=0.001) People who can control arterial pressure in normal rate were 12.7 percent of people under control of physicians.Conclusions:About 85.8 percent or 412 people with arterial hypertension were uncontrolled, 90 percent were male and 84.1 percent were female. Because of the arterial hypertension, 59 percent of the participants were under control of physicians. But 87.3 percent of them cannot control their arterial pressure/ypertension in normal rate. Physicians control, employment, body mass index and following drug treatment instruction were the factors influence on arterial hypertension control.

BackroundThe goal of the survey was to determine the prevalence of hypertension and common modifiable risk factors which is constantly increases and in highly lead of blood circulating system diseases among the people of Baynkhongor province in recent years, and also to find a reasonable ways to improve preventive actions for long life expectancy of the province residents.GoalThe goal of the survey was to determine the prevalence of hypertension and common modifiable risk factors among the people above 30 years old of Bayankhongor province.Objectives:1. To determine the prevalence of hypertension among the people above 30 years old of Bayankhongor province2. To determine the risk factors for hypertensionMaterials and Method:The cross-sectional survey used WHO STEPS survey methodology adapted to the countrys specifics. A total of 373 randomly selected above 30 year-old residents involved to the survey that all represented by ages, gender etc.Results:The survey result showed that about 41.3% of the target population who involved in the survey has the prevalence of hypertension and with no difference in all regions too. Men had significantly higher prevalence of hypertension compared to women as well (p=0.029), andit would occurs and happens more with the aging. Total of 34.6% of the target population who have the prevalence of hypertension (p=0.0001) have diagnosed and whereas men at risk about 66%. The survey result showed that the consumption of the pernicious habits of the population is high, and average daily serving of fruits and vegetables were (1.64 unit) once 3 more times less than the WHO recommendation. Daily salt intake was 9.8 grams per person (2 more times higher than the WHO recommendation) and nearly one in two persons were at increased risk for physical inactivity.Conclusions:The survey result showed that about 41.3% of the target population who involved in the survey has the prevalence of hypertension. In conclusion, the summary of combined hypertension risk factors demonstrates that 2 in 3 (65.9%) adults have 1-2 risk factors and 1 in 3 (30%) adults have three or more common modifiable risk factors. Twice as many young men (aged 30-49 years) than women have high 3 more risk factors.

Introduction: In recent years, there is no scientific epidemiological data about prevalence and risk factors of bronchial asthma among population in Mongolia. Goal: The aim of this study was to define some risk factors of bronchial asthma among urban adults. Materials and Methods: 1201 adults were randomly chosen aged over 20 years who lives in different districts of Ulaanbaatar city. The participants were interviewed using a modified questionnaire of “Global Initiative for Asthma” - GINA. Besides demographic data, information on smoking habits and atopic symptoms was collected. Univariate and multivariate logistic regression modeling was performed to calculate odds ratio of various potential risk factors. The lung function of subjects was checked using a spirometry Easyone, calculating the indexes Forced expiratory volume 1sec (FEV1), forced vital capacity (FVC), FEV1/FVC ratio. Results: Of the respondents, 606 were males (50.5%) and 595 were females (49.5%). Asthma was more frequent in female than in male. The prevalence of wheezing and physician-diagnosed asthma was higher in overweight and obese than in normal weight. The BMI was higher in group with wheezing than in group without wheezing (p<0.01). 54% of subjects with bronchial asthma were smokers. The mean value for FEV1 was 2.86±0.85 L and FVC was 3.60±0.94 L in overall and the lung function was lower in smokers than in non-smokers with bronchial asthma. 28.4% of subjects with allergic rhinitis has current asthma, while 11.6% of subjects without allergic rhinitis has asthma (p<0.01). Conclusion: Female sex, advancing age, history of allergic rhinitis, tobacco smoking and body mass index were associated with significantly higher odds of having asthma.