A citation-based method for searching scientific literature

G P Pokharel, A D Negrel, S R Munoz, L B Ellwein. Am J Ophthalmol 2000
Times Cited: 276







List of co-cited articles
769 articles co-cited >1



Times Cited
  Times     Co-cited
Similarity


Refractive Error Study in Children: results from Shunyi District, China.
J Zhao, X Pan, R Sui, S R Munoz, R D Sperduto, L B Ellwein. Am J Ophthalmol 2000
403
66

Refractive error and visual impairment in urban children in southern china.
Mingguang He, Junwen Zeng, Yizhi Liu, Jingjing Xu, Gopal P Pokharel, Leon B Ellwein. Invest Ophthalmol Vis Sci 2004
539
65

Refractive Error Study in Children: results from La Florida, Chile.
E Maul, S Barroso, S R Munoz, R D Sperduto, L B Ellwein. Am J Ophthalmol 2000
301
61

Refractive error in children in a rural population in India.
Rakhi Dandona, Lalit Dandona, Marmamula Srinivas, Prashant Sahare, Saggam Narsaiah, Sergio R Muñoz, Gopal P Pokharel, Leon B Ellwein. Invest Ophthalmol Vis Sci 2002
343
60

Refractive error in children in an urban population in New Delhi.
G V S Murthy, Sanjeev K Gupta, Leon B Ellwein, Sergio R Muñoz, Gopal P Pokharel, Lalit Sanga, Damodar Bachani. Invest Ophthalmol Vis Sci 2002
346
58

Refractive error and visual impairment in African children in South Africa.
Kovin S Naidoo, Avesh Raghunandan, Khathutshelo P Mashige, Pirindhavellie Govender, Brien A Holden, Gopal P Pokharel, Leon B Ellwein. Invest Ophthalmol Vis Sci 2003
234
52

Refractive error and visual impairment in school-age children in Gombak District, Malaysia.
Pik-Pin Goh, Yahya Abqariyah, Gopal P Pokharel, Leon B Ellwein. Ophthalmology 2005
215
44

Refractive error and visual impairment in school children in rural southern China.
Mingguang He, Wenyong Huang, Yingfeng Zheng, Li Huang, Leon B Ellwein. Ophthalmology 2007
261
34

Outdoor activity reduces the prevalence of myopia in children.
Kathryn A Rose, Ian G Morgan, Jenny Ip, Annette Kifley, Son Huynh, Wayne Smith, Paul Mitchell. Ophthalmology 2008
684
30

Refractive Error Study in Children: sampling and measurement methods for a multi-country survey.
A D Negrel, E Maul, G P Pokharel, J Zhao, L B Ellwein. Am J Ophthalmol 2000
216
24

Prevalence of myopia in Taiwanese schoolchildren: 1983 to 2000.
L L K Lin, Y F Shih, C K Hsiao, C J Chen. Ann Acad Med Singap 2004
563
22

Worldwide prevalence and risk factors for myopia.
Chen-Wei Pan, Dharani Ramamurthy, Seang-Mei Saw. Ophthalmic Physiol Opt 2012
476
22

Myopia.
Ian G Morgan, Kyoko Ohno-Matsui, Seang-Mei Saw. Lancet 2012
954
21

Refractive error, visual acuity and causes of vision loss in children in Shandong, China. The Shandong Children Eye Study.
Jian Feng Wu, Hong Sheng Bi, Shu Mei Wang, Yuan Yuan Hu, Hui Wu, Wei Sun, Tai Liang Lu, Xing Rong Wang, Jost B Jonas. PLoS One 2013
158
20

Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050.
Brien A Holden, Timothy R Fricke, David A Wilson, Monica Jong, Kovin S Naidoo, Padmaja Sankaridurg, Tien Y Wong, Thomas J Naduvilath, Serge Resnikoff. Ophthalmology 2016
20

Refractive error in school children in an urban and rural setting in Cambodia.
Zoe Gao, Ngy Meng, James Muecke, Weng Onn Chan, Horm Piseth, Aimee Kong, Theresa Jnguyenphamhh, Yalda Dehghan, Dinesh Selva, Robert Casson,[...]. Ophthalmic Epidemiol 2012
47
40

Global magnitude of visual impairment caused by uncorrected refractive errors in 2004.
Serge Resnikoff, Donatella Pascolini, Silvio P Mariotti, Gopal P Pokharel. Bull World Health Organ 2008
590
19

Prevalence of refractive errors among school children in Northeastern Iran.
Farhad Rezvan, Mehdi Khabazkhoob, Akbar Fotouhi, Hassan Hashemi, Hadi Ostadimoghaddam, Javad Heravian, Elham Azizi, Abbas Azimi Khorasani, Abbas Ali Yekta. Ophthalmic Physiol Opt 2012
52
34

Prevalence, incidence, and progression of myopia of school children in Hong Kong.
Dorothy S P Fan, Dennis S C Lam, Robert F Lam, Joseph T F Lau, King S Chong, Eva Y Y Cheung, Ricky Y K Lai, Sek-Jin Chew. Invest Ophthalmol Vis Sci 2004
308
18

Exceptionally low prevalence of refractive error and visual impairment in schoolchildren from Lao People's Democratic Republic.
Robert J Casson, Shyalle Kahawita, Aimee Kong, James Muecke, Siphetthavong Sisaleumsak, Vithoune Visonnavong. Ophthalmology 2012
37
48

The prevalence of refractive errors among schoolchildren in Dezful, Iran.
Akbar Fotouhi, Hassan Hashemi, Mehdi Khabazkhoob, Kazem Mohammad. Br J Ophthalmol 2007
93
18

Effect of Time Spent Outdoors at School on the Development of Myopia Among Children in China: A Randomized Clinical Trial.
Mingguang He, Fan Xiang, Yangfa Zeng, Jincheng Mai, Qianyun Chen, Jian Zhang, Wayne Smith, Kathryn Rose, Ian G Morgan. JAMA 2015
407
17

Prevalence and risk factors for refractive errors in adult Chinese in Singapore.
T Y Wong, P J Foster, J Hee, T P Ng, J M Tielsch, S J Chew, G J Johnson, S K Seah. Invest Ophthalmol Vis Sci 2000
555
16

Parental myopia, near work, school achievement, and children's refractive error.
Donald O Mutti, G Lynn Mitchell, Melvin L Moeschberger, Lisa A Jones, Karla Zadnik. Invest Ophthalmol Vis Sci 2002
430
16

Myopia, lifestyle, and schooling in students of Chinese ethnicity in Singapore and Sydney.
Kathryn A Rose, Ian G Morgan, Wayne Smith, George Burlutsky, Paul Mitchell, Seang-Mei Saw. Arch Ophthalmol 2008
247
16

How genetic is school myopia?
Ian Morgan, Kathryn Rose. Prog Retin Eye Res 2005
436
15

Parental history of myopia, sports and outdoor activities, and future myopia.
Lisa A Jones, Loraine T Sinnott, Donald O Mutti, Gladys L Mitchell, Melvin L Moeschberger, Karla Zadnik. Invest Ophthalmol Vis Sci 2007
429
15

Prevalence of refractive errors among schoolchildren in Shiraz, Iran.
Abbasali Yekta, Akbar Fotouhi, Hassan Hashemi, Cirous Dehghani, Hadi Ostadimoghaddam, Javad Heravian, Akbar Derakhshan, Reihaneh Yekta, Mehdi Behnia, Mehdi Khabazkhoob. Clin Exp Ophthalmol 2010
58
25

Increased prevalence of myopia in the United States between 1971-1972 and 1999-2004.
Susan Vitale, Robert D Sperduto, Frederick L Ferris. Arch Ophthalmol 2009
524
15

Prevalence of refractive errors in teenage high school students in Singapore.
Timothy P L Quek, Choon Guan Chua, Choon Seng Chong, Jin Ho Chong, Hwee Weng Hey, June Lee, Yee Fei Lim, Seang-Mei Saw. Ophthalmic Physiol Opt 2004
124
15

Ethnic differences in refraction and ocular biometry in a population-based sample of 11-15-year-old Australian children.
J M Ip, S C Huynh, D Robaei, A Kifley, K A Rose, I G Morgan, J J Wang, P Mitchell. Eye (Lond) 2008
125
14

The prevalence of visual impairment in school children of upper-middle socioeconomic status in Kathmandu.
Yuddha D Sapkota, Bishwa Nath Adhikari, Gopal P Pokharel, Bimal K Poudyal, Leon B Ellwein. Ophthalmic Epidemiol 2008
62
22

Prevalence and 5- to 6-year incidence and progression of myopia and hyperopia in Australian schoolchildren.
Amanda N French, Ian G Morgan, George Burlutsky, Paul Mitchell, Kathryn A Rose. Ophthalmology 2013
125
14

Prevalence of refractive error in Singaporean Chinese children: the strabismus, amblyopia, and refractive error in young Singaporean Children (STARS) study.
Mohamed Dirani, Yiong-Huak Chan, Gus Gazzard, Dana Marie Hornbeak, Seo-Wei Leo, Prabakaran Selvaraj, Brendan Zhou, Terri L Young, Paul Mitchell, Rohit Varma,[...]. Invest Ophthalmol Vis Sci 2010
144
14

Component dependent risk factors for ocular parameters in Singapore Chinese children.
Seang-Mei Saw, Andrew Carkeet, Kee-Seng Chia, Richard A Stone, Donald T H Tan. Ophthalmology 2002
162
13

Outdoor activity and myopia in Singapore teenage children.
M Dirani, L Tong, G Gazzard, X Zhang, A Chia, T L Young, K A Rose, P Mitchell, S-M Saw. Br J Ophthalmol 2009
275
13

The association between time spent outdoors and myopia in children and adolescents: a systematic review and meta-analysis.
Justin C Sherwin, Mark H Reacher, Ruth H Keogh, Anthony P Khawaja, David A Mackey, Paul J Foster. Ophthalmology 2012
234
13

Outdoor activity during class recess reduces myopia onset and progression in school children.
Pei-Chang Wu, Chia-Ling Tsai, Hsiang-Lin Wu, Yi-Hsin Yang, Hsi-Kung Kuo. Ophthalmology 2013
315
13

Prevalence of vision impairment and refractive error in school children in Ba Ria - Vung Tau province, Vietnam.
Prakash Paudel, Prasidh Ramson, Thomas Naduvilath, David Wilson, Ha Thanh Phuong, Suit M Ho, Nguyen V Giap. Clin Exp Ophthalmol 2014
58
22

Refractive error and ethnicity in children.
Robert N Kleinstein, Lisa A Jones, Sandral Hullett, Soonsi Kwon, Robert J Lee, Nina E Friedman, Ruth E Manny, Donald O Mutti, Julie A Yu, Karla Zadnik. Arch Ophthalmol 2003
295
12

Time outdoors and physical activity as predictors of incident myopia in childhood: a prospective cohort study.
Jeremy A Guggenheim, Kate Northstone, George McMahon, Andy R Ness, Kevin Deere, Calum Mattocks, Beate St Pourcain, Cathy Williams. Invest Ophthalmol Vis Sci 2012
242
12

Prevalence of myopia among Hong Kong Chinese schoolchildren: changes over two decades.
Carly Siu-Yin Lam, Chin-Hang Lam, Sam Chi-Kwan Cheng, Lily Yee-Lai Chan. Ophthalmic Physiol Opt 2012
129
12

Prevalence of myopia and its association with body stature and educational level in 19-year-old male conscripts in seoul, South Korea.
Su-Kyung Jung, Jin Hae Lee, Hirohiko Kakizaki, Donghyun Jee. Invest Ophthalmol Vis Sci 2012
250
12

Outdoor activity and myopia among primary students in rural and urban regions of Beijing.
Yin Guo, Li Juan Liu, Liang Xu, Yan Yun Lv, Ping Tang, Yi Feng, Meng Meng, Jost B Jonas. Ophthalmology 2013
147
11

Visual disability, visual function, and myopia among rural chinese secondary school children: the Xichang Pediatric Refractive Error Study (X-PRES)--report 1.
Nathan Congdon, Yunfei Wang, Yue Song, Kai Choi, Mingzhi Zhang, Zhongxia Zhou, Zhenling Xie, Liping Li, Xueyu Liu, Abhishek Sharma,[...]. Invest Ophthalmol Vis Sci 2008
96
11

Refractive error and visual impairment in school children in Northern Ireland.
L O'Donoghue, J F McClelland, N S Logan, A R Rudnicka, C G Owen, K J Saunders. Br J Ophthalmol 2010
89
12

Global estimates of visual impairment: 2010.
Donatella Pascolini, Silvio Paolo Mariotti. Br J Ophthalmol 2012
11

Role of near work in myopia: findings in a sample of Australian school children.
Jenny M Ip, Seang-Mei Saw, Kathryn A Rose, Ian G Morgan, Annette Kifley, Jie Jin Wang, Paul Mitchell. Invest Ophthalmol Vis Sci 2008
308
11

Prevalence of refractive errors in school-age children in Morocco.
Rosario G Anera, Margarita Soler, Juan de la Cruz Cardona, Carlos Salas, Carolina Ortiz. Clin Exp Ophthalmol 2009
36
30



Co-cited is the co-citation frequency, indicating how many articles cite the article together with the query article. Similarity is the co-citation as percentage of the times cited of the query article or the article in the search results, whichever is the lowest. These numbers are calculated for the last 100 citations when articles are cited more than 100 times.