T Koyama
- Ophthalmology top 2%
- Surgery
- Pathology and Forensic Medicine top 10%
- Epidemiology
- Rheumatology top 10%
- Co-authors
- Nobuhiko MatsuoIwao NishiuraToshihiko MatsuoHajime HandaToshiro SugimotoHideyuki SawadaKenji NishiharaDaisuke Koya
- Topics
- Spine and Intervertebral Disc Pathology (9 papers)Ocular Diseases and Behçet’s Syndrome (9 papers)Retinal and Optic Conditions (8 papers)
- Journals
- Free Radical Biology and MedicineAmerican Journal of OphthalmologyJournal of Evolutionary Biology
- Partner nations
- JapanUnited States
In The Last Decade
T Koyama
44 papers receiving 699 citations
Peers
Comparison fields: 5 of 89
- Ophthalmology 240
- Surgery 229
- Pathology and Forensic Medicine 137
- Epidemiology 133
- Rheumatology 85
Countries citing papers authored by T Koyama
This map shows the geographic impact of T Koyama'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 T Koyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T Koyama more than expected).
Fields of papers citing papers by T Koyama
This network shows the impact of papers produced by T Koyama. 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 T Koyama. The network helps show where T Koyama may publish in the future.
Co-authorship network of co-authors of T Koyama
This figure shows the co-authorship network connecting the top 25 collaborators of T Koyama. A scholar is included among the top collaborators of T Koyama 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 T Koyama. T Koyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 14 | |
| 2 | 124 | |
| 3 | 0 | |
| 4 | 4 | |
| 5 | 4 | |
| 6 | 3 | |
| 7 | 77 | |
| 8 | 4 | |
| 9 | 29 | |
| 10 | 53 | |
| 11 | 20 | |
| 12 | 17 | |
| 13 | 33 | |
| 14 | 5 | |
| 15 | 1 | |
| 16 | 41 | |
| 17 | 16 | |
| 18 | Immunological studies of uveitis. 3. Cell-mediated immunity to interphotoreceptor retinoid-binding protein. | 7 |
| 19 | 11 | |
| 20 | 12 |
About T Koyama
T Koyama is a scholar working on Ophthalmology, Pathology and Forensic Medicine and Neurology, having authored 47 papers that have together received 730 indexed citations. Recurring topics across this work include Spine and Intervertebral Disc Pathology (9 papers), Ocular Diseases and Behçet’s Syndrome (9 papers) and Retinal and Optic Conditions (8 papers). The work is most often cited by research in Ophthalmology (240 citations), Geriatrics and Gerontology (58 citations) and Pathology and Forensic Medicine (137 citations). T Koyama has collaborated with scholars based in Japan and United States. Frequent co-authors include Nobuhiko Matsuo, Iwao Nishiura, Toshihiko Matsuo, Hajime Handa, Toshiro Sugimoto, Hideyuki Sawada, Kenji Nishihara, Daisuke Koya, Takashi Uzu and Atsunori Kashiwagi. Their work appears in journals such as Free Radical Biology and Medicine, American Journal of Ophthalmology and Journal of Evolutionary Biology.
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.