Ramkumar Ramamirtham

1.5k total citations
30 papers, 1.1k citations indexed

About

Ramkumar Ramamirtham is a scholar working on Radiology, Nuclear Medicine and Imaging, Epidemiology and Cognitive Neuroscience. According to data from OpenAlex, Ramkumar Ramamirtham has authored 30 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Radiology, Nuclear Medicine and Imaging, 19 papers in Epidemiology and 12 papers in Cognitive Neuroscience. Recurrent topics in Ramkumar Ramamirtham's work include Ophthalmology and Visual Impairment Studies (19 papers), Corneal surgery and disorders (15 papers) and Visual perception and processing mechanisms (11 papers). Ramkumar Ramamirtham is often cited by papers focused on Ophthalmology and Visual Impairment Studies (19 papers), Corneal surgery and disorders (15 papers) and Visual perception and processing mechanisms (11 papers). Ramkumar Ramamirtham collaborates with scholars based in United States, Australia and Brazil. Ramkumar Ramamirtham's co-authors include Li‐Fang Hung, Ying Qiao-Grider, Earl Smith, Chea‐su Kee, Juan Huang, David K. Coats, Evelyn A. Paysse, Earl L. Smith, Austin Roorda and Thomas T. Norton and has published in prestigious journals such as Vision Research, Investigative Ophthalmology & Visual Science and Experimental Eye Research.

In The Last Decade

Ramkumar Ramamirtham

30 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ramkumar Ramamirtham United States 14 937 839 602 254 139 30 1.1k
Ying Qiao-Grider United States 12 915 1.0× 810 1.0× 564 0.9× 228 0.9× 144 1.0× 17 1.0k
Ji C. He United States 17 803 0.9× 751 0.9× 606 1.0× 204 0.8× 117 0.8× 41 1.0k
Sally A. McFadden Australia 19 795 0.8× 819 1.0× 725 1.2× 183 0.7× 83 0.6× 66 1.3k
D.I. Flitcroft Ireland 17 1.3k 1.4× 1.3k 1.5× 1.2k 1.9× 307 1.2× 148 1.1× 25 1.9k
Pavan K. Verkicharla India 23 1.1k 1.2× 1.1k 1.3× 945 1.6× 106 0.4× 129 0.9× 68 1.4k
Rigmor C. Baraas Norway 17 545 0.6× 486 0.6× 517 0.9× 171 0.7× 84 0.6× 70 1.0k
Baskar Arumugam Australia 18 1.0k 1.1× 873 1.0× 662 1.1× 181 0.7× 167 1.2× 42 1.2k
Arne Ohlendorf Germany 15 639 0.7× 508 0.6× 394 0.7× 192 0.8× 95 0.7× 58 795
Jinhua Bao China 17 735 0.8× 657 0.8× 417 0.7× 129 0.5× 155 1.1× 67 895
Chea‐su Kee Hong Kong 20 1.8k 1.9× 1.5k 1.8× 1.2k 1.9× 488 1.9× 291 2.1× 84 2.2k

Countries citing papers authored by Ramkumar Ramamirtham

Since Specialization
Citations

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

Fields of papers citing papers by Ramkumar Ramamirtham

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ramkumar Ramamirtham

This figure shows the co-authorship network connecting the top 25 collaborators of Ramkumar Ramamirtham. A scholar is included among the top collaborators of Ramkumar Ramamirtham 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 Ramkumar Ramamirtham. Ramkumar Ramamirtham 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.
Ramamirtham, Ramkumar, et al.. (2023). Modelling eye lengths and refractions in the periphery. Ophthalmic and Physiological Optics. 43(4). 815–826. 1 indexed citations
2.
Ramamirtham, Ramkumar, James D. Akula, Tara L. Favazza, et al.. (2015). Extrafoveal Cone Packing Density and Geometry in Retinopathy of Prematurity (ROP). Investigative Ophthalmology & Visual Science. 56(7). 4933–4933. 1 indexed citations
3.
Qiao-Grider, Ying, et al.. (2010). Nature of the refractive errors in rhesus monkeys (Macaca mulatta) with experimentally induced ametropias. Vision Research. 50(18). 1867–1881. 17 indexed citations
4.
Huang, Juan, Li‐Fang Hung, Ramkumar Ramamirtham, et al.. (2009). Effects of Form Deprivation on Peripheral Refractions and Ocular Shape in Infant Rhesus Monkeys (Macaca mulatta). Investigative Ophthalmology & Visual Science. 50(9). 4033–4033. 45 indexed citations
5.
Smith, Earl, Li‐Fang Hung, Ramkumar Ramamirtham, Junji Huang, & Ying Qiao-Grider. (2007). Optically Imposed Hyperopic Defocus in the Periphery Can Produce Central Axial Myopia in Infant Monkeys. Investigative Ophthalmology & Visual Science. 48(13). 1533–1533. 10 indexed citations
6.
Smith, Earl, Ramkumar Ramamirtham, Ying Qiao-Grider, et al.. (2007). Effects of Foveal Ablation on Emmetropization and Form-Deprivation Myopia. Investigative Ophthalmology & Visual Science. 48(9). 3914–3914. 231 indexed citations
7.
Ramamirtham, Ramkumar, et al.. (2007). Wave aberrations in rhesus monkeys with vision-induced ametropias. Vision Research. 47(21). 2751–2766. 3 indexed citations
8.
Qiao-Grider, Ying, Li‐Fang Hung, Chea‐su Kee, Ramkumar Ramamirtham, & Earl Smith. (2007). A comparison of refractive development between two subspecies of infant rhesus monkeys (Macaca mulatta). Vision Research. 47(12). 1668–1681. 17 indexed citations
9.
Qiao-Grider, Ying, Li‐Fang Hung, Chea‐su Kee, Ramkumar Ramamirtham, & Earl Smith. (2007). Normal ocular development in young rhesus monkeys (Macaca mulatta). Vision Research. 47(11). 1424–1444. 88 indexed citations
10.
Ramamirtham, Ramkumar, Chea‐su Kee, Li‐Fang Hung, et al.. (2006). Monochromatic ocular wave aberrations in young monkeys. Vision Research. 46(21). 3616–3633. 15 indexed citations
11.
Hung, Li‐Fang, Ying Qiao-Grider, Chea‐su Kee, et al.. (2005). Contributions of the Fovea and Peripheral Retina to the Emmetropization Process in Monkeys. Investigative Ophthalmology & Visual Science. 46(13). 2281–2281. 2 indexed citations
12.
Ramamirtham, Ramkumar, Chea‐su Kee, Ying Qiao-Grider, et al.. (2005). Corneal and Internal Wave Aberrations in Normal Rhesus Monkeys (Macaca Mulatta). 46(13). 1972–1972. 2 indexed citations
13.
Smith, Earl, Chea‐su Kee, Ramkumar Ramamirtham, Ying Qiao-Grider, & Li‐Fang Hung. (2005). Peripheral Vision Can Influence Eye Growth and Refractive Development in Infant Monkeys. Investigative Ophthalmology & Visual Science. 46(11). 3965–3965. 385 indexed citations
14.
Jiang, Baichuan & Ramkumar Ramamirtham. (2005). The adaptive effect of narrowing the interocular separation on the AC/A ratio. Vision Research. 45(20). 2704–2709. 12 indexed citations
15.
Kee, Chea‐su, Ramkumar Ramamirtham, Ying Qiao-Grider, et al.. (2004). The Role of Peripheral Vision in the Refractive–Error Development of Infant Monkeys (Macaca mulatta). Investigative Ophthalmology & Visual Science. 45(13). 1157–1157. 3 indexed citations
16.
Ramamirtham, Ramkumar, Thomas T. Norton, John T. Siegwart, & Austin Roorda. (2003). Wave Aberrations of Tree Shrew Eyes. Investigative Ophthalmology & Visual Science. 44(13). 1986–1986. 10 indexed citations
17.
Ramamirtham, Ramkumar, et al.. (2002). Wave Aberrations in the Young Monkey Eye. Investigative Ophthalmology & Visual Science. 43(13). 181–181. 2 indexed citations
18.
Ramamirtham, Ramkumar, Austin Roorda, Chea‐su Kee, et al.. (2002). WAVE ABERRATIONS IN THE INFANT AND YOUNG MONKEY EYE.. Optometry and Vision Science. 79(Supplement). 195–195. 1 indexed citations
19.
Qiao, Ying, et al.. (2002). Ocular Changes in Anisometropic Infant Rhesus Monkeys. Investigative Ophthalmology & Visual Science. 43(13). 2927–2927. 2 indexed citations
20.
Ramamirtham, Ramkumar, et al.. (2001). COMPARISON OF OBJECTIVE AND SUBJECTIVE REFRACTIONS IN MACACA MULATTA.. Optometry and Vision Science. 78(SUPPLEMENT). 90–90. 3 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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