Ni Made Ayu Surasmiati
Bagian Ilmu Kesehatan Mata Fakultas Kedokteran, Universitas Udayana, Bali, Indonesia

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Journal : Universa Medicina

Stereoacuity test as a screening tool for amblyopia and binocular vision in children 6-12 years of age Surasmiati, Ni Made Ayu; Wetarini , Krisnhaliani; Wijayati , Made Paramita; Suryathi, Ni Made Ari
Universa Medicina Vol. 43 No. 3 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.280-286

Abstract

BackgroundStereoacuity is essential for depth perception and daily activities, complementing visual acuity. Assessing stereoacuity in children is vital for detecting binocular vision disorders and amblyopia. This study aimed to compare the Toegepast Natuurwetenschappelijk Onderzoek (TNO) test and the Titmus Fly test in school-based vision screening for children aged 6-12 years. MethodsA cross-sectional study was conducted in social service settings with 122 elementary school children aged 6-12 years. Examinations included visual acuity, refraction, Ishihara color vision, and stereoacuity using both the TNO and Titmus Fly tests. Statistical comparisons were made using the Wilcoxon Signed-Ranks Test, and stereoacuity differences based on demographic factors and visual acuity were assessed using the Mann-Whitney U Test. The level of agreement between the two tests was determined using Bland-Altman analyses. Results Visual acuity significantly influenced stereoacuity results in the Titmus Fly test (p=0.001), with children having abnormal visual acuity performing worse. Approximately 68% of children reported that the Titmus Fly test was easier to perform. The mean difference between TNO and Titmus Fly measurements was 79.52 ± 63.75 (95% CI = 68.14–90.90; p=0.001), demonstrating a consistent bias between the two tests. Conclusion The Titmus Fly test is easier for children (6–12 years) to perform, but it tends to overestimate stereoacuity values compared to the TNO test, making the two methods non-interchangeable and not reliable. Stereoacuity assessment remains essential in school-based vision screening for evaluating binocular vision and amblyopia, especially in children with refractive errors.
Factors that influence refractive errors in premature infants Surasmiati, Ni Made Ayu; Handayani, Ariesanti Tri; Sutyawan, I Wayan Eka
Universa Medicina Vol. 43 No. 1 (2024)
Publisher : Faculty of Medicine, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2024.v43.44-50

Abstract

Background The prevalence of refractive errors is reported to be higher in children born preterm. Factors such as gestational age, birth weight, and retinopathy of prematurity status, have a significant impact on the refractive development in preterm infants. Prematurity and low birth weight affect the development of organ systems in infants, including the eyes. In addition to immature retinas, other eye conditions, such as refractive status, are also observed. This study aimed to determine the risk factors of refractive status, specifically refractive errors (spherical equivalent, astigmatism, and anisometropia) in premature infants at a tertiary hospital in Bali. MethodsA cross-sectional study was conducted involving 53 premature infants. This study collected samples from January to August 2023 at the Neonatal Intensive Care Unit of Prof. dr. IGNG Ngoerah General Hospital. Data regarding gender, gestational age, birth weight, retinal condition, spherical equivalent, and refractive disorders were collected. The relationship between risk factors and spherical equivalent, astigmatism, and anisometropia were analyzed using multiple regression analysis with statistical significance set at p<0.05. ResultsHypermetropia is the most common finding in premature infants, followed by myopia and astigmatism. The prevalence of myopia (9.4%) and astigmatism (5.7%) is also more common among newborns of gestational age ≤30 weeks (p=0.024). Chronological age was significantly associated with spherical equivalent (β=0.424; p=0.019). ConclusionIn premature infants, chronological age was the risk factor of spherical equivalent. Other risk factors were not associated with the prevalence of refractive errors among premature infants.