scholarly journals Impaired Vision Function Due to Use of Gadget

2021 ◽  
Vol 4 (2) ◽  
pp. 83-86
Author(s):  
Syafi'in Syafi'in ◽  
Byba Melda Suhita

Background: The disruption of the visual function resulting from the use of gadgets, by explaining the disturbance of the visual function that occurs and the proper and correct use of gadgets, which can maintain vision function, especially for children and adolescents Method: SLiterature sources were searched using data bases: Google Scholar, Pubmed, Proquest, Science Direct, and Sinta using keywords: computer, gadget, portable display, smartphone and eye, myopia, vision, visual. With boolen operators (AND, OR, NOT). The articles obtained were published between January 2015 and October 2020 for selection according to the objectives of the literature review and obtained as many as fifteen studies included in this literature review. Result: Prolonged use of gadgets and the like was significantly associated with decreased visual acuity and the onset of myopia (8 studies), as well the occurrence of one or more Computer Vison Syndrome in the eye organs (7 studies). Conclusion: The use of gadgets is not the only main cause of health problems, but contributes significantly to various health problems, especially impaired vision, namely decreased visual acuity, myopia, and computer vision syndrome. Proper management of gadget usage can prove beneficial in understanding education and other fields better whereas excessive use can lead to various health problems.

2020 ◽  
Author(s):  
Shadrack Lusi Muma ◽  
Dickens Omondi Aduda ◽  
Patrick Onyango Ogola

Abstract Background: Numerous factors have been shown to reduce symptomatic and non-symptomatic forms for computer vision syndrome. However, little is known on the impact among computer users diagnosed with severe symptoms of computer vision syndrome. The study assessed whether reduced visual acuity, ocular pathology and refractive error are associated with computer vision syndrome. Methods: A cross sectional university based study in Kenya. Seven hundred and eighty three participants were included in the study. Visual acuity was determined using snellens chart and converted to logMAR chart. Ocular pathology was determined through comprehensive examination using a slit lamp. Computer vision syndrome was determined using a validated questionnaire. Finally Retinoscopy was conducted to determine the type of refractive error. Results: Participants with refractive error above ± 0.50 dioptres had a greater odds, multivariate adjusted ratio 0.73 (95% CI 0.63-0.90) for developing computer vision syndrome. Similar to visual acuity with multivariate adjusted odds ratio of 0.31 (95% CI 0.24-0.47) and ocular pathologies being significantly associated with computer vision syndrome (p=.04). Ocular condition like sub conjunctival hemorrhage was not significantly associated with computer vision syndrome (P=.12). Conclusion: Reduced visual acuity, presence of ocular pathology and refractive error were associated with greater likelihood of computer vision syndrome. Particularly among those who had never had optical correction. Eye care providers are well placed to come up with proper diagnosis of CVS.


2014 ◽  
Vol 26 (02) ◽  
pp. 1450018 ◽  
Author(s):  
Carlos Perez-Vidal ◽  
Alejandro Garcia ◽  
Nicolas Garcia-Aracil ◽  
Jose M. Sabater ◽  
Eduardo Fernandez

The aim of the work presented in this paper is the design, manufacturing and assembling of a system able to measure rodents' (mice and rats) visual function and to study the evolution of degenerative retina diseases. Measurement of contrast sensitivity and visual acuity is essential to design new drugs and understand mechanisms of visual development to evaluate treatments' effectiveness. Classical methods to study visual perception of animals such as electroretinogram (ERG) or histological analysis are not supplying enough information because connection between eyes and brain is not considered. The system proposed in this work consists of four screens forming a cube with black methacrylate plastic floor and roof. Screens display visual stimulus and the rodent's behaviour (placed over a platform in the middle of the cube) is analized to determine its visual acuity and contrast sensitivity. These visual stimuli are generated from a FPGA board designed in this project. This board has a USB link with a computer and it controls screens via VGA signals. Rodents' behaviour is analized using computer vision algorithms under OpenCV libraries. To test the system, more than 30 mice (C57 and RD10 type) have been used to validate the hardware, the software, the procedure and protocol.


e-CliniC ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Dean Dotulong ◽  
Laya M. Rares ◽  
Imelda H. M. Najoan

Abstract: Computer vision syndrome (CVS) describes a group of eye and vision related problems that result from prolonged computer use or other gadgets. Its clinical manifestations maybe are not very disturbing for most people. Therefore, it tends to cause delayed treatment. If CVS is not well treated, there would be obstacles in daily life such as decreased productivity, increased failure in working or studying, and also low job satisfaction. This study was aimed to obtain a general view of CVS that involved the development of CVS, subjective complaints, and the its risk factors. This was a literature review study using three databases, as follows: Pubmed, ClinicalKey, and Google Scholar. The keywords were "Computer Vision Syndrome". The results showed that the most frequent complaints were eyestrain, neck pain, and headache, meanwhile the others complaints varied among literatures. The risk factors of CVS were usage of eyeglasses and contact lens, eye distance to the monitor, monitor position, duration of usage, break time, lighting intensity, age and gender, anti-glare filter usage, and brightness. In conclusion, the main complaints of CVS involved the eyes, head, and neck (ocular and non-ocular), meanwhile the risk factors were related to the usage of eyeglasses or contact lens, computer, lighting, and individual factors.Keywords: computer vision syndrome Abstrak: Computer vision syndrome (CVS) adalah sekumpulan gejala pada mata yang dise-babkan oleh penggunaan komputer atau alat elektronik lainnya dalam waktu cukup lama. Manifestasi klinis CVS mungkin dirasakan tidak parah dan tidak mengganggu bagi sebagian orang. Hal tersebut memicu keterlambatan dalam pengobatan.. Dampak yang selanjutnya terjadi jika CVS tidak diatasi ialah adanya hambatan dalam aktivitas sehari-hari seperti penurunan produktivitas kerja, peningkatan tingkat kesalahan dalam bekerja atau belajar, dan penurunan kepuasan kerja. Penelitian ini bertujuan untuk mengetahui CVS secara umum yang meliputi proses terjadinya CVS, keluhan subjektif, serta faktor risikonya. Jenis penelitian ialah literature review dengan pencarian data menggunakan tiga database yaitu Pubmed, ClinicalKey, dan Google Scholar. Kata kunci yang digunakan yaitu "Computer Vision Syndrome". Hasil peneli-tian menunjukkan bahwa keluhan-keluhan yang muncul paling sering yaitu mata lelah, nyeri leher, dan nyeri kepala, sedangkan keluhan lainnya bervariasi antar penelitian. Faktor risiko yang berpengaruh yaitu penggunaan kacamata dan lensa kontak, jarak mata dengan layar, posisi layar komputer, durasi penggunaan, pola istirahat, intensitas pencahayaan ruangan, usia, jenis kelamin, penggunaan anti-glare filter, dan kecerahan layar. Simpulan penelitian ini ialah keluhan pada CVS dapat terkait dengan mata dan kepala sampai ke leher (okuler dan non-okuler), dan faktor risikonya berhubungan dengan pemakaian kacamata dan lensa kontak, komputer, pencahayaan, dan faktor individual.Kata kunci: computer vision syndrome


2020 ◽  
Vol 9 (2) ◽  
pp. 45-49
Author(s):  
Pramod Sharma Gautam ◽  
Uday Chandra Prakash ◽  
Subreena Dangol

Background: The eye and vision related problems that results from continuous use of computers and other visual display terminals for extended period of time leads to computer vision syndrome. Due to rapid digitalization in human life, the risk of developing it has also increased in many folds. So, with an aim of determining the prevalence and level of awareness of computer vision syndrome among computer users along with their attitude and practices to prevent it, this study was conducted in the office employees who use computer for a considerable period of time. Materials and Methods: A hospital based observational descriptive study was conducted in the out-patient department of Ophthalmology in Nobel Medical College and Teaching Hospital, Biratnagar, where 105 employees working in different work stations of same institution were enrolled. A questionnaire and the clinical findings were used to collect data. Results: About 80% of the employees were using computer for about (8-11) hours per day. Prevalence of computer vision syndrome noted was (92.4%) with low level of knowledge (85.7%) about it. About 45% of them wore glasses for their refractive errors but attitude and practices in work place to prevent the bad effects of using visual display terminals were found to be lacking (53.3%). Burning sensation in the eye, headache, ocular irritation and itching and neck, shoulder or back pain were the common symptoms. Around (60-70)% of the eyes tested positive for dry eye. Conclusion: Lack of awareness of computer vision syndrome and lack of personal protective measures were associated with its high level of prevalence.  


Author(s):  
Concepción De‐Hita‐Cantalejo ◽  
Ángel García‐Pérez ◽  
José‐María Sánchez‐González ◽  
Raúl Capote‐Puente ◽  
María Carmen Sánchez‐González

Author(s):  
Mar Sánchez‐Brau ◽  
Begoña Domenech‐Amigot ◽  
Francisco Brocal‐Fernández ◽  
Mar Seguí‐Crespo

2015 ◽  
Vol 234 (2) ◽  
pp. 91-100 ◽  
Author(s):  
Ik Soo Byon ◽  
Gang Yun Pak ◽  
Han Jo Kwon ◽  
Kyong Ho Kim ◽  
Sung Who Park ◽  
...  

Purpose: To investigate the natural history of idiopathic epiretinal membrane (ERM) in eyes with good visual function using optical coherence tomography (OCT). Methods: Sixty-two eyes of 58 patients with idiopathic ERM, visual acuity of 20/40 or better, and no significant metamorphopsia were included. The best corrected visual acuity (BCVA), central macular thickness (CMT), membrane configuration, and ellipsoid zone signal data over 24 months were retrospectively analyzed. Based on OCT findings, ERM configurations were categorized as global attachment (GA), partial attachment (PA), pseudohole, and vitreomacular traction (VMT). Results: The mean BCVA and CMT did not change significantly between baseline and 24 months. GA, PA, pseudohole, and VMT types were observed in 33, 19, 9, and 1 eye at baseline, and in 20, 22, 10, and 1 eye at 24 months, respectively. A membrane configuration change was noted in 24 eyes (38.7%) during follow-up, and the distribution shifted from GA to the other types (p < 0.001). Six eyes had visual loss due to membrane progression, and 4 eyes had spontaneous membrane separation. Of the 10 eyes with progression or separation, 6 were of the PA type. Conclusions: Although the BCVA remains stable over 2 years in most idiopathic ERM eyes with good visual function at baseline, the membrane configuration may change, affecting visual acuity. The GA type would be an early stage, and the PA type is prone to changes in visual acuity.


2015 ◽  
Vol 98 (3) ◽  
pp. 228-233 ◽  
Author(s):  
Wolfgang Jaschinski ◽  
Mirjam König ◽  
Tiofil M. Mekontso ◽  
Arne Ohlendorf ◽  
Monique Welscher

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