Background: There is no study that estimates the prevalence of vernal keratoconjunctivitis and the association between vernal keratoconjunctivitis and intestinal parasitic infestation in our setting. Purpose: This study aimed to estimate the vernal keratoconjunctivitis prevalence, describe the profile of sensitization and determine the association between vernal keratoconjunctivitis disease and intestinal parasitic infestation in school children of Kinshasa during the scholar year from 2022 to 2023. Methods: An observational, crosssectional study was performed from September 2022 to June 2023. The children with vernal keratoconjunctivitis were recruited by using the four-stage probability sampling technique. Children attending in the school children of Kinshasa with vernal keratoconjunctivitis were enrolled in the classroom and underwent a clinical examination and skin prick test for 11 allergens and stool examination direct with microscope in the Laboratory. Data were entered in Microsoft Sheets using SPSS version 20.0. The Chi-square test was used to compare the sex, age groups, home environment (grow trees and/or flowers around the yard), dampness in the house, keeping pets (cat and/or dog), number of people per household, number of people sharing a bedroom and intestinal parasitic infestation. The significant level was set to a value of p < 0.05. Results: A total of 28,800 students from four-stage probabilist sampling technique in school of Kinshasa were included, and 2100 students had symptoms according to the vernal keratoconjunctivitis-related symptom questionnaire. Children with vernal keratoconjunctivitis were enrolled and the mean age ± standard was 7.2 ± 3.7 years, with a prevalence of 7.2% and gender was three boys for one girl.
Purpose: We aimed to evaluate negative impact on academic performance of University students in Kinshasa associated to statics ametropia in our setting. Methods: A cross-sectional study was performed in the Department Ophthalmology of University Hospital of Kinshasa from January to June 2022. The Faculties, department and audience were taken to carry out a survey of three-stage probability sampling technique while the students were enrolled on the register's presence to space four names (k = 4). The students have been taken ophthalmologic exam systematically visual acuity (Monoyer Ladder), slit lamp, fund ophthalmoscopy and automatic refractometer KR-920Top Con to determine ametropia. Academic performance was classified in this ways: poor (40% -49%), passable (50% -59%), fairly (60% -69%), good (70% -79%), very good (80% -89%) and excellent (90% -99%). Sociodemographic and clinical data have been systematically recorded in this study. Data was enrigestred in Excel software. We used SPSS version 20.0 for statistical analysis and Chi-square was used to compare proportion. Univariate and multivariate analyses were used to test association between statics ametropia and environmental factors. p-value inferior to 0.05 or equal was considered significant.Results: A total of 600 students were examined. Their age ranged from 18 to 56 years and mean age ± SD was 24.6 ± 7.1 years. Sex ratio was 1.2. The main complaints were difficulty to watch the black board 30.3%, photophobia 14.6%, blurred vision 14%, tired vision 12.1%, headache 7.8%, ocular eyes, tearing eyes 4.3%, low visual acuity 4.1%, ocular prickling 2.6%, vertigo 2.3%, itchy eyes 2.1% and red eyes 1.3%. Myopia represented 36.6%, Hypermetropia 19.8%, Simple Astigmatism myopia 8.8%, Compose Astigmatism myopia 6.5%, Mix astigmatism 3.1% and spherical anisometropia 1.8%. Video playing,
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