Timothy Onyuma

510 total citations
9 papers, 148 citations indexed

About

Timothy Onyuma is a scholar working on Ophthalmology, Epidemiology and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Timothy Onyuma has authored 9 papers receiving a total of 148 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Ophthalmology, 4 papers in Epidemiology and 4 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Timothy Onyuma's work include Ocular Oncology and Treatments (5 papers), Nonmelanoma Skin Cancer Studies (4 papers) and Corneal Surgery and Treatments (3 papers). Timothy Onyuma is often cited by papers focused on Ocular Oncology and Treatments (5 papers), Nonmelanoma Skin Cancer Studies (4 papers) and Corneal Surgery and Treatments (3 papers). Timothy Onyuma collaborates with scholars based in Kenya, United Kingdom and India. Timothy Onyuma's co-authors include Joy Kabiru, Mandeep S. Sagoo, Matthew J. Burton, Stephen Gichuhi, Hillary Rono, Helen A. Weiss, Walter Jaoko, John N. Maina and David Macleod and has published in prestigious journals such as BMC Health Services Research, The Lancet Global Health and Tropical Medicine & International Health.

In The Last Decade

Timothy Onyuma

8 papers receiving 145 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Timothy Onyuma Kenya	6	125	74	74	22	10	9	148
Samantha Levin United States	5	233 1.9×	109 1.5×	180 2.4×	27 1.2×	17 1.7×	9	252
Nir Gomel Israel	6	54 0.4×	25 0.3×	49 0.7×	6 0.3×	12 1.2×	19	93
Fiona McCurrach Australia	3	64 0.5×	34 0.5×	35 0.5×	12 0.5×	28 2.8×	6	92
William Deegan United States	3	62 0.5×	44 0.6×	19 0.3×	13 0.6×	8 0.8×	4	87
Arthur Cummings United States	11	259 2.1×	116 1.6×	259 3.5×	20 0.9×	37 3.7×	23	325
C. Schmid-Tannwald Germany	4	65 0.5×	61 0.8×	84 1.1×	53 2.4×	84 8.4×	5	173
Emily Mills United Kingdom	5	47 0.4×	19 0.3×	17 0.2×	14 0.6×	3 0.3×	9	126
Manavi D Sindal India	8	287 2.3×	44 0.6×	226 3.1×	2 0.1×	10 1.0×	34	300
Olaf Sowade Germany	6	88 0.7×	26 0.4×	77 1.0×	4 0.2×	1 0.1×	8	184
Assaf Gershoni Israel	8	164 1.3×	42 0.6×	125 1.7×	1 0.0×	46 4.6×	35	234

Countries citing papers authored by Timothy Onyuma

Since Specialization

Citations

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

Fields of papers citing papers by Timothy Onyuma

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Timothy Onyuma

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

All Works

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9 of 9 papers shown

1.

Onyuma, Timothy, et al.. (2025). Autophagy-related protein LC3β and its association with clinical-pathological characteristics, mismatch repair proteins and survival in colorectal carcinoma. Frontiers in Medicine. 12. 1512127–1512127.

2.

Onyuma, Timothy, et al.. (2024). Frequency of IDH1 mutation in adult-type diffuse astrocytic gliomas in a tertiary hospital in Kenya. Frontiers in Medicine. 11. 1305714–1305714. 1 indexed citations

3.

Gichuhi, Stephen, Joy Kabiru, Hillary Rono, et al.. (2017). Delay along the care-seeking journey of patients with ocular surface squamous neoplasia in Kenya. BMC Health Services Research. 17(1). 485–485. 8 indexed citations

4.

Gichuhi, Stephen, Joy Kabiru, Hillary Rono, et al.. (2016). Topical fluorouracil after surgery for ocular surface squamous neoplasia in Kenya: a randomised, double-blind, placebo-controlled trial. The Lancet Global Health. 4(6). e378–e385. 28 indexed citations

5.

Gichuhi, Stephen, Joy Kabiru, Hillary Rono, et al.. (2016). Risk factors for ocular surface squamous neoplasia in Kenya: a case–control study. Tropical Medicine & International Health. 21(12). 1522–1530. 31 indexed citations

6.

Gichuhi, Stephen, Joy Kabiru, Hillary Rono, et al.. (2015). Clinical Presentation of Ocular Surface Squamous Neoplasia in Kenya. JAMA Ophthalmology. 133(11). 1305–1305. 51 indexed citations

7.

Gichuhi, Stephen, Joy Kabiru, Hillary Rono, et al.. (2015). Toluidine Blue 0.05% Vital Staining for the Diagnosis of Ocular Surface Squamous Neoplasia in Kenya. JAMA Ophthalmology. 133(11). 1314–1314. 22 indexed citations

8.

Gichuhi, Stephen, et al.. (2014). Ocular rhinosporidiosis mimicking conjunctival squamous papilloma in Kenya – a case report. BMC Ophthalmology. 14(1). 45–45. 6 indexed citations

9.

Onyuma, Timothy, et al.. (2014). Incidence of perineural invasion in prostate adenocarcinoma: Rural Kenyan population experience. 1 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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