Dai Nagayama

754 total citations · 1 hit paper
8 papers, 629 citations indexed

About

Dai Nagayama is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Infectious Diseases. According to data from OpenAlex, Dai Nagayama has authored 8 papers receiving a total of 629 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Ophthalmology, 4 papers in Radiology, Nuclear Medicine and Imaging and 0 papers in Infectious Diseases. Recurrent topics in Dai Nagayama's work include Retinal Diseases and Treatments (8 papers), Glaucoma and retinal disorders (6 papers) and Retinal and Optic Conditions (3 papers). Dai Nagayama is often cited by papers focused on Retinal Diseases and Treatments (8 papers), Glaucoma and retinal disorders (6 papers) and Retinal and Optic Conditions (3 papers). Dai Nagayama collaborates with scholars based in Japan. Dai Nagayama's co-authors include Masaaki Saito, Tomohiro Iida, Ichiro Maruko, Kuniharu Saito, T. Iida, Hideki Koizumi, Tetsuya Baba, Chieko Shiragami, Fumio Shiraga and Tetsuju Sekiryu and has published in prestigious journals such as American Journal of Ophthalmology, British Journal of Ophthalmology and Retina.

In The Last Decade

Dai Nagayama

8 papers receiving 608 citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Clinical Characteristics of Exudative Age-related Macular Degeneration in Japanese Patients

2007 460 citations Ichiro Maruko, Tomohiro Iida et al. American Journal of Ophthalmology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Dai Nagayama Japan	7	625	432	22	15	9	8	629
Kuniharu Saito Japan	6	612 1.0×	417 1.0×	54 2.5×	22 1.5×	15 1.7×	7	625
Jing Hou China	11	354 0.6×	260 0.6×	44 2.0×	19 1.3×	9 1.0×	20	383
Michel Shami United States	5	523 0.8×	426 1.0×	43 2.0×	13 0.9×	4 0.4×	9	544
Emmerson Badaró Brazil	12	346 0.6×	286 0.7×	77 3.5×	32 2.1×	6 0.7×	37	399
Korobelnik Jf France	5	307 0.5×	265 0.6×	45 2.0×	14 0.9×	8 0.9×	18	329
Anat Loewenstein Germany	5	427 0.7×	329 0.8×	45 2.0×	4 0.3×	8 0.9×	5	445
Seigo Yoneyama Japan	13	484 0.8×	336 0.8×	50 2.3×	6 0.4×	13 1.4×	35	505
Dal Chun United States	5	368 0.6×	247 0.6×	31 1.4×	18 1.2×	8 0.9×	11	386
Pasquale Viggiano Italy	16	534 0.9×	439 1.0×	86 3.9×	23 1.5×	6 0.7×	72	575
Matthias Gutfleisch Germany	14	534 0.9×	418 1.0×	34 1.5×	18 1.2×	10 1.1×	39	549

Countries citing papers authored by Dai Nagayama

Since Specialization

Citations

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

Fields of papers citing papers by Dai Nagayama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Dai Nagayama

This figure shows the co-authorship network connecting the top 25 collaborators of Dai Nagayama. A scholar is included among the top collaborators of Dai Nagayama 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 Dai Nagayama. Dai Nagayama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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8 of 8 papers shown

1.

Maruko, Ichiro, Tomohiro Iida, Masaaki Saito, & Dai Nagayama. (2010). Combined cases of polypoidal choroidal vasculopathy and typical age-related macular degeneration. Graefe s Archive for Clinical and Experimental Ophthalmology. 248(3). 361–368. 14 indexed citations

2.

Saito, Masaaki, Dai Nagayama, & Tomohiro Iida. (2009). [Photodynamic therapy with verteporfin for polypoidal choroidal vasculopathy: long-term results].. PubMed. 113(8). 792–9. 6 indexed citations

3.

Koizumi, Hideki, Tomohiro Iida, Dai Nagayama, Masaaki Saito, & Tetsuju Sekiryu. (2008). INDOCYANINE GREEN ANGIOGRAPHY IN EYES WITH SUBSTANTIALLY INCREASED SUBRETINAL FLUID 1 WEEK AFTER PHOTODYNAMIC THERAPY. Retinal Cases & Brief Reports. 2(1). 12–14. 4 indexed citations

4.

Saito, Masaaki, T. Iida, & Dai Nagayama. (2008). Photodynamic therapy with verteporfin for age-related macular degeneration or polypoidal choroidal vasculopathy: comparison of the presence of serous retinal pigment epithelial detachment. British Journal of Ophthalmology. 92(12). 1642–1647. 43 indexed citations

5.

Saito, Masaaki, Tomohiro Iida, & Dai Nagayama. (2008). CROSS-SECTIONAL AND EN FACE OPTICAL COHERENCE TOMOGRAPHIC FEATURES OF POLYPOIDAL CHOROIDAL VASCULOPATHY. Retina. 28(3). 459–464. 42 indexed citations

6.

Maruko, Ichiro, Tomohiro Iida, Masaaki Saito, Dai Nagayama, & Kuniharu Saito. (2007). Clinical Characteristics of Exudative Age-related Macular Degeneration in Japanese Patients. American Journal of Ophthalmology. 144(1). 15–22.e2. 460 indexed citations breakdown →

7.

Koizumi, Hideki, Tomohiro Iida, Masaaki Saito, Dai Nagayama, & Ichiro Maruko. (2007). Choroidal circulatory disturbances associated with retinal angiomatous proliferation on indocyanine green angiography. Graefe s Archive for Clinical and Experimental Ophthalmology. 246(4). 515–520. 31 indexed citations

8.

Shiragami, Chieko, Tomohiro Iida, Dai Nagayama, Tetsuya Baba, & Fumio Shiraga. (2007). RECURRENCE AFTER SURGICAL ABLATION FOR RETINAL ANGIOMATOUS PROLIFERATION. Retina. 27(2). 198–203. 29 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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