Masahiko Ayaki

2.5k total citations
122 papers, 1.8k citations indexed

About

Masahiko Ayaki is a scholar working on Ophthalmology, Public Health, Environmental and Occupational Health and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Masahiko Ayaki has authored 122 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Ophthalmology, 49 papers in Public Health, Environmental and Occupational Health and 46 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Masahiko Ayaki's work include Ocular Surface and Contact Lens (48 papers), Glaucoma and retinal disorders (44 papers) and Ophthalmology and Visual Impairment Studies (35 papers). Masahiko Ayaki is often cited by papers focused on Ocular Surface and Contact Lens (48 papers), Glaucoma and retinal disorders (44 papers) and Ophthalmology and Visual Impairment Studies (35 papers). Masahiko Ayaki collaborates with scholars based in Japan, United States and India. Masahiko Ayaki's co-authors include Kazuno Negishi, Kazuo Tsubota, Atsuo Iwasawa, Motoko Kawashima, Shigeo Yaguchi, Yoshimi Niwano, Ryohei Koide, Toshimichi Shinohara, Hidemasa Torii and Palsamy Periyasamy and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Masahiko Ayaki

115 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masahiko Ayaki Japan 23 821 664 606 383 242 122 1.8k
Motoko Kawashima Japan 35 1.3k 1.6× 2.7k 4.1× 1.3k 2.1× 303 0.8× 143 0.6× 149 3.8k
Line Kessel Denmark 25 1.6k 1.9× 218 0.3× 1.0k 1.7× 658 1.7× 386 1.6× 149 2.5k
Blanka Golebiowski Australia 26 727 0.9× 1.8k 2.6× 889 1.5× 142 0.4× 60 0.2× 75 2.1k
Charles W. McMonnies Australia 29 1.5k 1.9× 1.7k 2.5× 1.6k 2.7× 349 0.9× 137 0.6× 106 2.8k
Yuichi Uchino Japan 29 1.3k 1.6× 3.1k 4.7× 1.3k 2.2× 157 0.4× 410 1.7× 58 4.1k
Mônica Alves Brazil 22 1.3k 1.5× 2.7k 4.0× 996 1.6× 63 0.2× 156 0.6× 73 3.2k
Brian Levy United States 23 1.1k 1.3× 457 0.7× 738 1.2× 421 1.1× 263 1.1× 70 2.5k
Jelle Vehof Netherlands 27 1.2k 1.5× 3.0k 4.5× 881 1.5× 52 0.1× 145 0.6× 68 3.7k
Aoi Komuro Japan 22 745 0.9× 1.8k 2.6× 793 1.3× 37 0.1× 43 0.2× 66 2.0k
Sun‐Young Oh South Korea 32 329 0.4× 65 0.1× 79 0.1× 171 0.4× 336 1.4× 145 2.9k

Countries citing papers authored by Masahiko Ayaki

Since Specialization
Citations

This map shows the geographic impact of Masahiko Ayaki'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 Masahiko Ayaki with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masahiko Ayaki more than expected).

Fields of papers citing papers by Masahiko Ayaki

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masahiko Ayaki. 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 Masahiko Ayaki. The network helps show where Masahiko Ayaki may publish in the future.

Co-authorship network of co-authors of Masahiko Ayaki

This figure shows the co-authorship network connecting the top 25 collaborators of Masahiko Ayaki. A scholar is included among the top collaborators of Masahiko Ayaki 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 Masahiko Ayaki. Masahiko Ayaki 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.
Ayaki, Masahiko, Akiko Hanyuda, & Kazuno Negishi. (2025). Presbyopia and associated factors specific to age groups. Clinical and Experimental Optometry. 109(1). 47–52.
2.
Hanyuda, Akiko, Miyuki Kubota, Shunsuke Kubota, et al.. (2024). Establishing the cutoff value of near visual acuity for assessment of early presbyopia. Japanese Journal of Ophthalmology. 68(6). 709–716. 2 indexed citations
3.
Ayaki, Masahiko, et al.. (2024). Comparison of accuracy and axial length acquisition success rate by three types of swept-source OCT-based biometers. Journal of Cataract & Refractive Surgery.
4.
Torii, Hidemasa, et al.. (2024). Accuracy of recent intraocular lens power calculation methods in post-myopic LASIK eyes. Scientific Reports. 14(1). 26560–26560.
5.
Ayaki, Masahiko, et al.. (2024). Accuracy of new intraocular lens power calculation formula for short and long eyes using segmental refractive indices. Journal of Cataract & Refractive Surgery. 50(8). 810–815. 5 indexed citations
6.
Ayaki, Masahiko & Kazuno Negishi. (2022). Short Tear Breakup Time Could Exacerbate the Progression of Presbyopia in Women. BioMed Research International. 2022(1). 8159669–8159669. 8 indexed citations
7.
Arai, Hiroyuki, Ikuko Toda, Miyuki Kubota, et al.. (2021). Determination of the Standard Visual Criterion for Diagnosing and Treating Presbyopia According to Subjective Patient Symptoms. Journal of Clinical Medicine. 10(17). 3942–3942. 9 indexed citations
8.
9.
Ayaki, Masahiko, Motoko Kawashima, Kazuno Negishi, et al.. (2016). Sleep and mood disorders in dry eye disease and allied irritating ocular diseases. Scientific Reports. 6(1). 22480–22480. 67 indexed citations
10.
Ayaki, Masahiko, Yoshimi Niwano, Taro Kanno, & Kazuo Tsubota. (2015). Blue light induces oxidative damage in human ocular surface cells in culture. Investigative Ophthalmology & Visual Science. 56(7). 5613–5613. 2 indexed citations
11.
Matsubara, Hisashi, et al.. (2015). Effect of blue light cut-off filter on the electroretinogram from intrinsically photosensitive retinal ganglion cells. Investigative Ophthalmology & Visual Science. 56(7). 5570–5570. 1 indexed citations
12.
Ayaki, Masahiko, Kazuno Negishi, Yoshimi Suzukamo, & Kazuo Tsubota. (2014). Color of Intra-Ocular Lens and Cataract Type Are Prognostic Determinants of Health Indices After Visual and Photoreceptive Restoration by Surgery. Rejuvenation Research. 18(2). 145–152. 19 indexed citations
13.
Ayaki, Masahiko, Kazuno Negishi, & Kazuo Tsubota. (2014). Rejuvenation effects of cataract surgery with clear intra-ocular lens implantation on gait speed, sleep quality, and metabolic parameters.. Investigative Ophthalmology & Visual Science. 55(13). 2540–2540. 1 indexed citations
14.
Periyasamy, Palsamy, Masahiko Ayaki, Keshore R. Bidasee, & Toshimichi Shinohara. (2013). Methylglyoxal Activates Chronic ER Stress Mediated Epigenetic Loss of Nrf2/Keap1 Gene Regulation in Diabetic Cataractous Lenses. Investigative Ophthalmology & Visual Science. 54(15). 1148–1148. 1 indexed citations
15.
Ayaki, Masahiko, et al.. (2012). Improvements in Sleep Quality and Gait Speed After Cataract Surgery. Rejuvenation Research. 16(1). 35–42. 47 indexed citations
16.
Periyasamy, Palsamy, Masahiko Ayaki, Elanchezhian Rajan, & Toshimichi Shinohara. (2012). Promoter demethylation of Keap1 gene in human diabetic cataractous lenses. Biochemical and Biophysical Research Communications. 423(3). 542–548. 51 indexed citations
17.
Ayaki, Masahiko & Atsuo Iwasawa. (2011). Cell Viability of Four Corneoconjunctival Cell Lines Exposed to Five Preservatives and a Surfactant Used for Infection Control in Eyedrops. Biocontrol Science. 16(3). 117–121. 11 indexed citations
18.
Ayaki, Masahiko & Atsuo Iwasawa. (2011). Critical Concentration Of Benzalkonium Chloride In Eye Drop For Toxicity In Four Cultured Ocular Surface Cell Lines. Investigative Ophthalmology & Visual Science. 52(14). 1955–1955. 4 indexed citations
19.
Ayaki, Masahiko, et al.. (2010). Cytotoxicity of five fluoroquinolone and two nonsteroidal anti-inflammatory benzalkonium chloride-free ophthalmic solutions in four corneoconjunctival cell lines. SHILAP Revista de lepidopterología. 4 indexed citations
20.
Yaguchi, Shigeo, et al.. (2003). Surface scattering in implanted hydrophobic intraocular lenses. Journal of Cataract & Refractive Surgery. 29(7). 1385–1388. 54 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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