Flávio Hirai

6.9k total citations
74 papers, 1.0k citations indexed

About

Flávio Hirai is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Flávio Hirai has authored 74 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Ophthalmology, 35 papers in Radiology, Nuclear Medicine and Imaging and 18 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Flávio Hirai's work include Corneal surgery and disorders (19 papers), Ocular Surface and Contact Lens (18 papers) and Corneal Surgery and Treatments (18 papers). Flávio Hirai is often cited by papers focused on Corneal surgery and disorders (19 papers), Ocular Surface and Contact Lens (18 papers) and Corneal Surgery and Treatments (18 papers). Flávio Hirai collaborates with scholars based in Brazil, United States and United Kingdom. Flávio Hirai's co-authors include Ronald Klein, Scot E. Moss, James M. Tielsch, Carlos Roberto Padovani, Silvana Artioli Schellini, Mauro Campos, Fernanda Pedreira Magalhães, Renata T. Kashiwabuchi, Michael D. Knudtson and Peter J. McDonnell and has published in prestigious journals such as Diabetes Care, American Journal of Epidemiology and Ophthalmology.

In The Last Decade

Flávio Hirai

69 papers receiving 965 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Flávio Hirai Brazil 19 571 528 205 141 107 74 1.0k
Alparslan Şahin Türkiye 18 663 1.2× 500 0.9× 142 0.7× 152 1.1× 17 0.2× 86 1.1k
Jong Soo Lee South Korea 14 541 0.9× 349 0.7× 229 1.1× 141 1.0× 12 0.1× 71 899
Hugo Y. Hsu United States 16 508 0.9× 256 0.5× 219 1.1× 118 0.8× 17 0.2× 36 714
Rajesh K John India 13 1.1k 2.0× 812 1.5× 163 0.8× 289 2.0× 22 0.2× 16 1.4k
H A Kahn United States 9 926 1.6× 627 1.2× 70 0.3× 277 2.0× 30 0.3× 17 1.3k
Ching-Ye Hong Singapore 6 334 0.6× 437 0.8× 50 0.2× 497 3.5× 28 0.3× 8 755
Guanrong Zhang China 14 195 0.3× 182 0.3× 38 0.2× 176 1.2× 26 0.2× 42 614
Scott G Fraser United Kingdom 14 338 0.6× 149 0.3× 68 0.3× 51 0.4× 8 0.1× 26 568
Behnam Rabiee United States 15 49 0.1× 207 0.4× 185 0.9× 197 1.4× 164 1.5× 43 828

Countries citing papers authored by Flávio Hirai

Since Specialization
Citations

This map shows the geographic impact of Flávio Hirai's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Flávio Hirai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Flávio Hirai more than expected).

Fields of papers citing papers by Flávio Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Flávio Hirai. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Flávio Hirai. The network helps show where Flávio Hirai may publish in the future.

Co-authorship network of co-authors of Flávio Hirai

This figure shows the co-authorship network connecting the top 25 collaborators of Flávio Hirai. A scholar is included among the top collaborators of Flávio Hirai based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Flávio Hirai. Flávio Hirai is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Moscovici, Bernardo Kaplan, et al.. (2021). Association between keratoconus, ocular allergy, and sleeping behavior. Arquivos Brasileiros de Oftalmologia. 84(1). 17–21. 7 indexed citations
3.
Hirai, Flávio, Norma Allemann, Adriana Berezovsky, et al.. (2020). B-scan ultrasound, visual electrophysiology and perioperative videoendoscopy for predicting functional results in keratoprosthesis candidates. British Journal of Ophthalmology. 106(1). 32–36. 1 indexed citations
4.
Gracitelli, Carolina P. B., et al.. (2019). Effectiveness of teachers visual acuity test in school screening of children from 3 to 14 years in Sete Barras, Sao Paulo, Brazil.. Investigative Ophthalmology & Visual Science. 60(9). 3131–3131. 1 indexed citations
5.
Nunes, Renata Portella, Flávio Hirai, Emmerson Badaró, et al.. (2019). Effectiveness of monthly and fortnightly anti-VEGF treatments for age-related macular degeneration. Arquivos Brasileiros de Oftalmologia. 82(3). 225–232. 9 indexed citations
6.
Hirai, Flávio, et al.. (2019). Refractive and visual outcomes after Ferrara corneal ring segment implantation at a 60% depth in keratoconic eyes: case series. Arquivos Brasileiros de Oftalmologia. 82(6). 488–494.
7.
Hirai, Flávio, et al.. (2017). One-Year Clinical Outcomes of a Corneal Inlay for Presbyopia. Cornea. 36(7). 816–820. 8 indexed citations
8.
Osaki, Midori H., et al.. (2015). Influence of involuntary eyelid spasms on corneal topographic and eyelid morphometric changes in patients with hemifacial spasm. British Journal of Ophthalmology. 100(7). 963–970. 13 indexed citations
9.
Müller, Rodrigo, et al.. (2015). Comparison of Descemet-On Versus Descemet-Off Deep Anterior Lamellar Keratoplasty in Keratoconus Patients. Cornea. 34(7). 797–801. 8 indexed citations
10.
Dias, João Rafael de Oliveira, Emmerson Badaró, Eduardo A. Novais, et al.. (2014). Pre-clinical safety of intravitreal ziv-aflibercept. Investigative Ophthalmology & Visual Science. 55(13). 1948–1948. 2 indexed citations
11.
Hirai, Flávio, James M. Tielsch, Ronald Klein, & Ronald Klein. (2012). Relationship between Retinopathy Severity, Visual Impairment and Depression in Persons with Long-term Type 1 Diabetes. Ophthalmic Epidemiology. 19(4). 196–203. 25 indexed citations
12.
Kashiwabuchi, Renata T., et al.. (2012). Antimicrobial susceptibility of photodynamic therapy (UVA/riboflavin) against Staphylococcus aureus. Arquivos Brasileiros de Oftalmologia. 75(6). 423–426. 18 indexed citations
13.
Hirai, Flávio, et al.. (2010). Acanthamoeba Keratitis and Coinfection. Investigative Ophthalmology & Visual Science. 51(13). 2425–2425. 1 indexed citations
14.
Schellini, Silvana Artioli, Shane R. Durkin, Flávio Hirai, et al.. (2009). Prevalence of Refractive Errors in a Brazilian Population: The Botucatu Eye Study. Ophthalmic Epidemiology. 16(2). 90–97. 31 indexed citations
15.
Hirai, Flávio, et al.. (2009). Fatores associados à qualidade da córnea doada pelo Banco de Olhos do Hospital São Paulo. Arquivos Brasileiros de Oftalmologia. 72(1). 57–61. 7 indexed citations
16.
Hirai, Flávio, et al.. (2009). Avaliação da microbiota ocular em pacientes com disfunção do filme lacrimal. Revista Brasileira de Oftalmologia. 68(6). 332–337.
17.
Schellini, Silvana Artioli, et al.. (2008). BMP Implant Associated with Platelet-Rich Plasma in Orbit Fracture Repair. Current Eye Research. 33(3). 293–301. 5 indexed citations
18.
Hirai, Flávio, et al.. (2008). Dez anos de doação de córneas no Banco de Olhos do Hospital São Paulo: perfil dos doadores de 1996 a 2005. Arquivos Brasileiros de Oftalmologia. 71(2). 176–81. 16 indexed citations
19.
Bains, Harkaran S., et al.. (2007). Comparison of Laser Epithelial Keratomileusis With and Without Mitomycin C for Wavefront Customized Surface Ablations. Journal of Refractive Surgery. 23(S11). S1021–8. 11 indexed citations
20.
Hirai, Flávio, Scot E. Moss, Michael D. Knudtson, Ronald Klein, & Ronald Klein. (2007). Retinopathy and Survival in a Population without Diabetes: The Beaver Dam Eye Study. American Journal of Epidemiology. 166(6). 724–730. 23 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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