Martha Tjon-Fo-Sang

745 total citations
14 papers, 533 citations indexed

About

Martha Tjon-Fo-Sang is a scholar working on Radiology, Nuclear Medicine and Imaging, Ophthalmology and Molecular Biology. According to data from OpenAlex, Martha Tjon-Fo-Sang has authored 14 papers receiving a total of 533 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Radiology, Nuclear Medicine and Imaging, 8 papers in Ophthalmology and 4 papers in Molecular Biology. Recurrent topics in Martha Tjon-Fo-Sang's work include Glaucoma and retinal disorders (7 papers), Corneal surgery and disorders (5 papers) and Retinal Imaging and Analysis (4 papers). Martha Tjon-Fo-Sang is often cited by papers focused on Glaucoma and retinal disorders (7 papers), Corneal surgery and disorders (5 papers) and Retinal Imaging and Analysis (4 papers). Martha Tjon-Fo-Sang collaborates with scholars based in Netherlands, United Kingdom and United States. Martha Tjon-Fo-Sang's co-authors include Hans G. Lemij, J. de Vries, Houdijn W. Beekhuis, Thomas P. Colen, Paul Mulder, R. van Strik, J.R.M. Cruysberg, Anneke Maat‐Kievit, Willem A. van den Bosch and Jan Willem R. Pott and has published in prestigious journals such as Ophthalmology, American Journal of Ophthalmology and Investigative Ophthalmology & Visual Science.

In The Last Decade

Martha Tjon-Fo-Sang

13 papers receiving 491 citations

Peers

Martha Tjon-Fo-Sang

OPHTH

RNMI

EPIDE

PHEOH

Paul E. Rafuse Canada

Shiho Kunimatsu‐Sanuki Japan

Jayme R Vianna Canada

Myung Douk Ahn South Korea

Tin Aung Singapore

Ramin Daneshvar Iran

Uday K. Addepalli India

Nikhil S. Choudhari India

Parag A. Gokhale United States

Paul E. Rafuse Canada

Martha Tjon-Fo-Sang

439 ×0.9

OPHTH

341 ×0.8

RNMI

43 ×0.4

EPIDE

60 ×0.8

36 ×0.9

PHEOH

Citations per year, relative to Martha Tjon-Fo-Sang Martha Tjon-Fo-Sang (= 1×) peers Paul E. Rafuse

Countries citing papers authored by Martha Tjon-Fo-Sang

Since Specialization

Citations

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

Fields of papers citing papers by Martha Tjon-Fo-Sang

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Martha Tjon-Fo-Sang. 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 Martha Tjon-Fo-Sang. The network helps show where Martha Tjon-Fo-Sang may publish in the future.

Co-authorship network of co-authors of Martha Tjon-Fo-Sang

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

All Works

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14 of 14 papers shown

Tedja, Milly S., Jeremy A. Guggenheim, Seang-Mei Saw, et al.. (2025). IMI—Myopia Genetics Report. Investigative Ophthalmology & Visual Science. 66(13). 22–22.

Elsman, Ellen B. M., et al.. (2021). Psychometric properties of the Dutch version Adult Strabismus‐20 Questionnaire (AS‐20). Ophthalmic and Physiological Optics. 41(5). 1007–1020. 3 indexed citations

Tjon-Fo-Sang, Martha, et al.. (2021). [New treatment option for Leber hereditary optic neuropathy: early diagnosis is required].. PubMed. 165. 1 indexed citations

Khan, Muhammad Imran, Maria M. van Genderen, J. Schuil, et al.. (2020). LONGITUDINAL STUDY OF RPE65-ASSOCIATED INHERITED RETINAL DEGENERATIONS. Retina. 40(9). 1812–1828. 11 indexed citations

Tjon-Fo-Sang, Martha, et al.. (2014). Inter-examiner variability and agreement of the alternate prism cover test (APCT) measurements of strabismus performed by 4 examiners. Strabismus. 22(4). 158–166. 21 indexed citations

Tjon-Fo-Sang, Martha, et al.. (2013). Ectopia lentis et pupillae in four generations caused by novel mutations in theADAMTSL4gene. British Journal of Ophthalmology. 97(5). 583–587. 15 indexed citations

Tjon-Fo-Sang, Martha, et al.. (2002). Cyclotorsion: A possible cause of residual astigmatism in refractive surgery. Journal of Cataract & Refractive Surgery. 28(4). 599–602. 79 indexed citations

Colen, Thomas P., Martha Tjon-Fo-Sang, Paul Mulder, & Hans G. Lemij. (2000). Reproducibility of Measurements With the Nerve Fiber Analyzer (NFA/GDx). Journal of Glaucoma. 9(5). 363–370. 46 indexed citations

Tjon-Fo-Sang, Martha & Hans G. Lemij. (1998). Retinal nerve fiber layer measurements in normal black subjects as determined with scanning laser polarimetry. Ophthalmology. 105(1). 78–81. 30 indexed citations

10.

Bosch, Willem A. van den, Martha Tjon-Fo-Sang, & Hans G. Lemij. (1998). Eyeball Position in Graves Orbitopathy and Its Significance for Eyelid Surgery. Ophthalmic Plastic and Reconstructive Surgery. 14(5). 328–335. 12 indexed citations

11.

Lemij, Hans G. & Martha Tjon-Fo-Sang. (1998). THE NERVE FIBER ANALYZER. Ophthalmology Clinics of North America. 11(3). 411–420. 6 indexed citations

12.

Tjon-Fo-Sang, Martha & Hans G. Lemij. (1997). The Sensitivity and Specificity of Nerve Fiber Layer Measurements in Glaucoma as Determined With Scanning Laser Polarimetry. American Journal of Ophthalmology. 123(1). 62–69. 158 indexed citations

13.

Tjon-Fo-Sang, Martha, R. van Strik, J. de Vries, & Hans G. Lemij. (1997). Improved Reproducibility of Measurements with the Nerve Fiber Analyzer. Journal of Glaucoma. 6(4). 203???211–203???211. 26 indexed citations

14.

Tjon-Fo-Sang, Martha, J. de Vries, & Hans G. Lemij. (1996). Measurement by Nerve Fiber Analyzer of Retinal Nerve Fiber Layer Thickness in Normal Subjects and Patients With Ocular Hypertension. American Journal of Ophthalmology. 122(2). 220–227. 125 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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