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Indrajanti, Mirza
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Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Nursing Public Health

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Hubungan Antara Kelainan Refraksi Dengan Perilaku Membaca Pada Siswa Anggota Jemaat Gereja Kristen Nafiri Sion Fajar Kemuliaan Tahun 2023 Indrajanti, Mirza; Wijaya, Esther; Nila, Seri; Sinaga, Natasya Advelin; Gosali, Vincentio Owen; Kencana, Billy Gadi
Jurnal MedScientiae Vol. 3 No. 3 (2024): Desember
Publisher : Universitas Kristen Krida Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36452/JMedScientiae.v3i3.3332

Abstract

Myopia is an eye disorder in which parallel rays coming from an infinite distance are refracted in front of the retina. Astigmatism is an optical condition of the eye, in which parallel rays are not refracted at a single focal point, so that the focus is unclear, vision is blurred and often dizzy. Anisometropia is a difference in refractive error between the two eyes of 1-2 Diopters (D) in one or more meridians. This can cause aniseikonia, namely a difference in shadow both in shape and size that causes difficulty in fusion. Hypermetropia / Hyperopia / farsightedness is a condition of not being able to see close objects clearly, this condition is the opposite of farsightedness (myopia). The symptoms of hypermetropia are similar to presbyopia in the elderly. Research objective is to educate students about visual health. Method is data collection was conducted through anamnesis, visual acuity examination using refraction instruments and distributing questionnaires to students of the Nafiri Sion Fajar Kemuliaan Christian Church aged 12-22 years, totaling 62 people, then diagnosed with refractive disorders. There is a relationship between refractive disorders and students' reading behavior.
The Stereopsis Ability Based on Corrected Refractive Errors in School-Age Children Hasan; Indrajanti, Mirza; Silaen, Desi Hartati
Jurnal MedScientiae Vol. 4 No. 2 (2025): Agustus
Publisher : Universitas Kristen Krida Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36452/jmedscientiae.v4i2.3861

Abstract

Stereopsis is the highest binocular vision ability which is very important in children's visual development. Especially in supporting the learning process and daily activities. Refractive disorders such as myopia, hypermetropia, and astigmatism that are not properly corrected can inhibit the development of stereopsis. Objective: To determine the stereopsis ability based on the type of refractive disorder that has been corrected in students of SDN 11 Pagi and SDN 17 Kebon Jeruk in 2025. Method: This study used a quantitative descriptive design with a cross-sectional approach. The sample consisted of 792 students who had their refractive disorders corrected and met the inclusion criteria. Results: Of the total 792 students, 465 students had refractive disorders, with the highest proportion of compound myopic astigmatism (27.9%). This group also showed the highest percentage of subnormal stereopsis (33.5%). In addition, of the 115 students with subnormal conditions, many (51.3%) were accompanied by anisometropia. Conclusion: There are differences in stereopic abilities in children based on corrected refractive errors, groups with a combination of refractive errors accompanied by anisometropia mostly experience subnormal stereopsis. Therefore, it is important to do early detection and correct refractive errors appropriately to support the development of binocular vision and children's learning achievements so that they are maximized.
The Prevalence of Refractive Errors Using the Lea Symbols Test in Preschool Children in South Tangerang Kosin, Abdul; Indrajanti, Mirza; Farfar, Inggrid Osya
Jurnal MedScientiae Vol. 4 No. 2 (2025): Agustus
Publisher : Universitas Kristen Krida Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36452/jmedscientiae.v4i2.3878

Abstract

Preschool age is a critical phase in children's visual development. Refractive errors such as myopia, hypermetropia, and astigmatism often go undetected due to limited communication abilities in young children. Early detection is essential to prevent negative impacts on growth and learning achievement. The Lea Symbols Test is an effective visual screening method, especially for children who have not yet learned to read. Objective: This study aims to determine the prevalence and types of refractive errors in preschool children in Sawah Baru Subdistrict, South Tangerang, using the Lea Symbols Test. Method: This is a descriptive quantitative study using a survey approach. The sample consisted of 123 children aged 3–7 years from three kindergartens in the area. Visual acuity was assessed using the Lea Symbols chart, followed by subjective refraction using trial lenses. Data were analyzed univariately. Results: The findings showed that 38.2% of children had refractive errors in the right eye and 40.7% in the left eye. Myopia was the most common type (17.9%), followed by astigmatism (9.8%) and hypermetropia (8.1%). Most respondents were aged 5–6 years. The Lea Symbols Test proved effective in identifying visual acuity in early childhood. Conclusion: The prevalence of refractive errors in preschool children is relatively high, with myopia being the most common. Routine eye examinations and parental education are essential for early detection and management.
Co-Authors Farfar, Inggrid Osya Gosali, Vincentio Owen Hasan Kencana, Billy Gadi Kosin, Abdul Nila, Seri Silaen, Desi Hartati Sinaga, Natasya Advelin Wijaya, Esther