Pervasive Blindness and ocular morbidity in the Chepang people of Nepal

Pokharel, Amrit; Kandel, Himal; Shrestha, Priyanka

doi:10.3126/nepjoph.v8i2.17021

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Refractive error was the leading cause of visual impairment in the present study population followed by blepharitis. In our study, the prevalence of refractive error among chepang children was 15%, which was like Pokharel et al [18]. The prevalence of astigmatism was 6.6% in our study.…”

Section: Discussionsupporting

confidence: 88%

“…Pokharel et al in their study found the prevalence of refractive error to be very little. Of 97 children, 7 had myopia and the commonest complaint observed was watering followed by ocular pain and complaints of diminution of vision for near [18]. Our study will help in assessing the refractive status of these children as well as increasing the awareness and better planning of eye care services in these remote areas.…”

Section: Introductionmentioning

confidence: 87%

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Ocular Morbidity Among Chepang Children, An Indigenous Ethnic Group of Nepal

Kaiti¹

2020

JOJO

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Background: Chepang are the indigenous community inhabiting at mountain region of central Nepal sharing Mongolian features. Their literacy rate is below average and economic state is also miserable. Overall, this community is very backward and is the poorest of Nepal's poor. The prevalence of ocular abnormalities in Chepang has rarely been reported. A very little is known about the ocular morbidity status among Chepang children. Method:A cross-sectional study was carried out to find the prevalence of refractive error and other ocular morbidities among Chepang children. A complete eye examination was carried out in all children including slit lamp examination, fundus examination, retinoscopy and subjective refraction.Result: Of 120 children, refractive error was present in 18 (15%) children. The prevalence of myopia (spherical equivalent, −0.50 D or more in either eye), astigmatism (≥0.75 D), and hyperopia (+0.50D or more) was 4.1%, 6.6%, and 4.1% respectively. Of 120 children, 2(1.67%) had amblyopia, 4(3.33%) had cataract, 1(0.83%) had nystagmus, 2(1.67%) had corneal opacity, 8(6.67%) had blepharitis, 4(3.33%) had conjunctivitis. The overall prevalence of ocular morbidity was 32.5% Conclusion:Ocular morbidity is more prevalent among chepang children and is a public health concern among these indigenous populations.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 87%

Ocular Morbidity Among Chepang Children, An Indigenous Ethnic Group of Nepal

Kaiti¹

2020

JOJO

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Uncorrected and corrected refractive error experiences of Nepalese adults: a qualitative study

Kandel

Khadka

Shrestha

et al. 2017

Ophthalmic Epidemiology

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Ultrafast quasi-three-dimensional imaging

Lian

Jiang

Sun

et al. 2023

Int. J. Extrem. Manuf.

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Understanding laser induced ultrafast process with complex three-dimensional (3D) geometrical and extreme property evolution offers unique platform to explore novel physical phenomena and to overcome manufacturing limitations. Ultrafast imaging has been considered as an effective tool due to their exceptional spatiotemporal resolution ability. However, the current imaging techniques with single view imaging actually projecting 3D information on two-dimensional plane, leading to great information loss, and misunderstanding the nature of ultrafast process. Here, we propose a quasi-3D imaging method to describe the 3D ultrafast process and further analyse spatial asymmetric of laser induced plasma. The vertically polarization laser pulses are adopted to illuminate reflection-transmission views, and the binarization techniques are employed to extract contours, forming the corresponding two-dimensional matrix. By rotating and multiplying the two-dimensional contour matrices obtained from the dual views, the quasi-3D image was reconstructed. It successfully unveils dual phase transition mechanisms and elucidates the diffraction phenomena occurring outside the plasma. Furthermore, the quasi-3D image confirms spatial asymmetric of plasma in picosecond plasma, which is hard to acquire in two-dimensional images. Our findings demonstrate that quasi-3D imaging not only offers a more comprehensive understanding of plasma dynamics than previous imaging methods, but also has widespread potential in various ultrafast fields such as strong-field physics, fluid dynamics, and cutting-edge manufacturing.

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Pervasive Blindness and ocular morbidity in the Chepang people of Nepal

Cited by 3 publications

References 2 publications

Ocular Morbidity Among Chepang Children, An Indigenous Ethnic Group of Nepal

Ocular Morbidity Among Chepang Children, An Indigenous Ethnic Group of Nepal

Uncorrected and corrected refractive error experiences of Nepalese adults: a qualitative study

Ultrafast quasi-three-dimensional imaging

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