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Opep Cahya Nugraha
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PEMERIKSAAN REFRAKSI SUBYEKTIF PADA PENDERITA PRESBYOPIA DENGAN STATUS REFRAKSI EMMETROPIA Imam Setyana; Nensi Mesrani Tarigan; Opep Cahya Nugraha
Jurnal Mata Optik Vol. 1 No. 1 (2020): Jurnal Mata Optik
Publisher : Akademi Refraksi Optisi dan Optometry Gapopin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54363/jmo.v1i1.6

Abstract

Abstract Accomodation is a mechanism that regulates the focus of the eyes to respond to visual stimulation by changing the refractive power of the crystaline lens. To focus near object, the cilliary muscle contracts which changes the shapes of the lens. However with increasing age, elasticity of the lens decreases causing anomalies of accomodation called presbyopia. The teatment of presbyopia is the prescription of appropriate convex glasses for near work. In this paper, the writer uses descriptive methods from the library data regarding subjective refraction to find the correction lens diopters to reach the best visual acuity. Keywords: Pattern, Single Vision Sphero Cylinder Lenses, Descriptive, Accurate, Quality
Pengaruh Kekontrasan Optotype Snellen Terhadap Tajam Penglihatan Pada Pemeriksaan Refraksi Subjektif Wahyu Budiana; Opep Cahya Nugraha; Zakaria Efendi
Jurnal Mata Optik Vol. 2 No. 2 (2021): Jurnal Mata Optik
Publisher : Akademi Refraksi Optisi dan Optometry Gapopin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54363/jmo.v2i2.37

Abstract

The visual acuity examination is affected by the contrast between the background of the optotype used and the letter. Changes in contrast result in unstable visual acuity and affect the examination results subjectively. The writing of this paper uses a descriptive method using a variety of literature data, one of which is by David Cline, John R. Hofstetter and Henry W., Griffin, with the title. Dictionary Of Visual Science, Fourth Edition which explains that contrast in Snellen's optotype affects visual acuity.
PEMERIKSAAN PENDERITA PRESBYOPIA DENGAN STATUS REFRAKSI HYPERMETROPIA, MYOPIA, ASTIGMAT DAN EMETROPIA MASYARAKAT CILANDAK PERIODE JANUARI 2023 BUNYAMIN RIZKI ABDILLAH; Opep Cahya Nugraha; Hanie Supandi
Jurnal Mata Optik Vol. 4 No. 1 (2023): Jurnal Mata Optik
Publisher : Akademi Refraksi Optisi dan Optometry Gapopin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The inability of a person to see close objects clearly can occur for several reasons, including presbyopia. Meanwhile, a person's inability to see distant objects clearly can occur for several reasons, including because his eyes have hypermetropic refractive status, myopia, astigmatism and emmetropia. This research was carried out using a descriptive method through a quantitative approach. The results showed that of the 53 Cilandak people who received a subjective refraction examination with optic 688, they were presbyopic patients with right (26.4%) and left (28.3%) hypermetropia refractive status, right and left myopia (41.5%), left com astigmatism (22.6%), right com astigmatism (18.9%), right sim astigmatism (13.2%), left sim astigmatism (15.1%), and right emmetropia (31.1%) and Emmetropia left 28.3%). In the examination of subjective refraction, determining the size of spectacle lenses for far vision for patients with hypermetropia is based on a concept, namely by providing the largest spherical lens that can produce the best vision. Meanwhile, for myopia, the weakest spherical correction lens is provided. For astigmatism, cylindrical correction lenses are given, determining the size of spectacle lenses for near vision for presbyopia sufferers with hypermetropia refractive status, which is the accumulation of lens diopters for far vision and addition. It can be concluded that the ultimate goal of examining subjective refraction in patients with presbyopia with hypermetropia, myopia and astigmatism is to determine the appropriate lens size, so that glasses made with these sizes can function as a visual aid.
Dampak Sikatrik pada Kornea: Tinjauan Literatur Review Mohamad Wahyu Budiana; Opep Cahya Nugraha
JIKES : Jurnal Ilmu Kesehatan Vol. 5 No. 1 (2026): Juli-Desember 2026
Publisher : Yayasan Pendidikan Tanggui Baimbaian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71456/jik.v5i1.2694

Abstract

Sikatrik kornea merupakan jaringan parut pada kornea yang menyebabkan berkurangnya kejernihan kornea dan dapat mengganggu fungsi penglihatan hingga menyebabkan kebutaan. Kondisi ini dapat terjadi akibat trauma pada mata, infeksi yang tidak tertangani dengan baik, penggunaan lensa kontak yang tidak tepat, serta penggunaan obat tetes mata tertentu secara tidak terkontrol. Artikel ini bertujuan untuk mengkaji sikatrik kornea berdasarkan berbagai literatur dengan menelaah penyebab, dampaknya terhadap fungsi penglihatan, upaya pencegahan, serta penatalaksanaannya. Kajian dilakukan menggunakan metode studi pustaka dengan pendekatan analisis deskriptif melalui pengumpulan dan penelaahan informasi yang bersumber dari buku, jurnal, catatan ilmiah, dan laporan hasil penelitian terdahulu. Hasil kajian menunjukkan bahwa tingkat gangguan penglihatan akibat sikatrik kornea dipengaruhi oleh lokasi, luas, dan tingkat kekeruhan jaringan parut pada kornea. Sikatrik yang melibatkan area pusat kornea dapat menyebabkan penurunan tajam penglihatan yang lebih berat, sedangkan sikatrik di bagian perifer cenderung memberikan dampak yang lebih ringan. Pencegahan dapat dilakukan melalui penanganan infeksi secara tepat, penggunaan lensa kontak dan obat tetes mata sesuai aturan, serta perlindungan mata dari risiko trauma. Pada sikatrik kornea berat yang telah mengganggu penglihatan, keratoplasti atau pencangkokan kornea menjadi pilihan penatalaksanaan untuk mengembalikan fungsi kornea, meskipun pelaksanaannya masih menghadapi keterbatasan ketersediaan donor kornea.
Co-Authors BUNYAMIN RIZKI ABDILLAH Hanie Supandi Imam Setyana Mohamad Wahyu Budiana Nensi Mesrani Tarigan Wahyu Budiana Zakaria Efendi