This map shows the geographic impact of Hungwon Tchah'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 Hungwon Tchah with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hungwon Tchah more than expected).
This network shows the impact of papers produced by Hungwon Tchah. 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 Hungwon Tchah. The network helps show where Hungwon Tchah may publish in the future.
Co-authorship network of co-authors of Hungwon Tchah
This figure shows the co-authorship network connecting the top 25 collaborators of Hungwon Tchah.
A scholar is included among the top collaborators of Hungwon Tchah 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 Hungwon Tchah. Hungwon Tchah is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Jun, Kyung Ran, et al.. (2007). A Case of Beauveria bassiana Keratitis. Korean Journal of Clinical Microbiology. 10(1). 73–76.2 indexed citations
9.
Kim, Myoung Joon, Jin Ho Jeong, Chul Young Choi, & Hungwon Tchah. (2006). Clinical Evaluation of New Microkeratome. Journal of the Korean Ophthalmological Society. 47(9). 1387–1393.1 indexed citations
10.
Choi, Jaewan, Tae‐im Kim, & Hungwon Tchah. (2004). Aberration Change in Pseudophakia with Three Types of Acryl Intraocular Lens. Journal of the Korean Ophthalmological Society. 45(3). 405–412.2 indexed citations
11.
Kim, Myoung Joon, et al.. (2004). Changes of Higher Order Aberrations with the Use of Various Mydriatics.. Journal of the Korean Ophthalmological Society. 45(10). 1719–1723.1 indexed citations
12.
Tchah, Hungwon, et al.. (2003). Incidence of Flap Complications of Hansatome$^{\circledR}$ in Laser in Situ Keratomileusis. Journal of the Korean Ophthalmological Society. 44(3). 692–698.1 indexed citations
13.
Chung, Hyewon, Michael S. Kook, & Hungwon Tchah. (2003). Ahmed valve implant and penetrating keratoplasty. Journal of the Korean Ophthalmological Society. 44(1). 12–80.1 indexed citations
14.
Tchah, Hungwon, et al.. (2001). Transscleral Fixation of Posterior Chamber Intraocular Lens in Aphakia.. Journal of the Korean Ophthalmological Society. 42(1). 50–56.1 indexed citations
15.
Tchah, Hungwon, et al.. (1999). A Case of Microbial Keratitis as a Complication of Orthokeratology Contact Lens Wear.. Journal of the Korean Ophthalmological Society. 40(5). 1401–1404.1 indexed citations
16.
Tchah, Hungwon, et al.. (1999). Change of Conjunctival Flora after Disposable Contact Lens Wear.. Journal of the Korean Ophthalmological Society. 40(12). 3286–3291.2 indexed citations
17.
Lee, Sang Joon, et al.. (1999). Antibiotic Susceptibilities of Ocular Isolates from Patients with Bacterial Ke ratitis: A Multi-center Study.. Journal of the Korean Ophthalmological Society. 40(9). 2401–2410.8 indexed citations
18.
Tchah, Hungwon, et al.. (1999). Sands of the Sahara Syndrome.. Journal of the Korean Ophthalmological Society. 40(5). 1405–1414.9 indexed citations
19.
Tchah, Hungwon, et al.. (1998). Epidemiology of Contact Lens Related Infectious Keratitis(1995.4 ~1997.9): Multi-center Study.. Journal of the Korean Ophthalmological Society. 39(7). 1417–1426.7 indexed citations
20.
Tchah, Hungwon, et al.. (1991). Experimental 24 Hour Corneal Swelling by Extended Wear Contact Lenses.. Journal of the Korean Ophthalmological Society. 32(2). 149–153.1 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.