John S.M. Chang

635 total citations
24 papers, 441 citations indexed

About

John S.M. Chang is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Epidemiology. According to data from OpenAlex, John S.M. Chang has authored 24 papers receiving a total of 441 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Ophthalmology, 20 papers in Radiology, Nuclear Medicine and Imaging and 12 papers in Epidemiology. Recurrent topics in John S.M. Chang's work include Corneal surgery and disorders (20 papers), Ophthalmology and Visual Impairment Studies (12 papers) and Glaucoma and retinal disorders (11 papers). John S.M. Chang is often cited by papers focused on Corneal surgery and disorders (20 papers), Ophthalmology and Visual Impairment Studies (12 papers) and Glaucoma and retinal disorders (11 papers). John S.M. Chang collaborates with scholars based in Hong Kong, China and United States. John S.M. Chang's co-authors include Cynthia J. Roberts, Ashraf M. Mahmoud, Michael D. Twa, Deborah M. Grzybowski, Tommy C.Y. Chan, J. Earl Rathbun, Stuart R. Seiff, Susan R. Carter, Jack Ng and Antony K.P. Law and has published in prestigious journals such as Ophthalmology, Journal of Cataract & Refractive Surgery and Journal of Refractive Surgery.

In The Last Decade

John S.M. Chang

23 papers receiving 409 citations

Peers

John S.M. Chang
George P. M. Cheng China
Michael Murri United States
Tae Yoon La South Korea
Julio Narváez United States
Wilhelmina J. Rijneveld Netherlands
Terrence S. Spencer United States
Steven O. Hansen United States
Paul U. Fechner Germany
Miguel Rechichi Italy
Ayşe Burcu Türkiye
George P. M. Cheng China
John S.M. Chang
Citations per year, relative to John S.M. Chang John S.M. Chang (= 1×) peers George P. M. Cheng

Countries citing papers authored by John S.M. Chang

Since Specialization
Citations

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

Fields of papers citing papers by John S.M. Chang

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John S.M. Chang. 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 John S.M. Chang. The network helps show where John S.M. Chang may publish in the future.

Co-authorship network of co-authors of John S.M. Chang

This figure shows the co-authorship network connecting the top 25 collaborators of John S.M. Chang. A scholar is included among the top collaborators of John S.M. Chang 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 John S.M. Chang. John S.M. Chang 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.
Sekundo, Walter, John S.M. Chang, Sri Ganesh, Jesper Hjortdal, & Rainer Wiltfang. (2025). Keratorefractive Lenticule Extraction for Myopia and Myopic Astigmatism With the VISUMAX 800: 6-Month Outcomes of a Prospective Multi-center Post-market Clinical Follow-up Study. Journal of Refractive Surgery. 41(3). e264–e271. 2 indexed citations
2.
Chang, John S.M., et al.. (2024). Comparative Analysis of Tolerance to Experimentally Induced Astigmatism with Three Types of Multifocal Intraocular Lenses. Clinical ophthalmology. Volume 18. 139–149. 1 indexed citations
3.
Chang, John S.M., et al.. (2022). Clinical outcome of a quadrifocal (trifocal) intraocular lens in Chinese patients: prospective, observational case series. Journal of Cataract & Refractive Surgery. 49(3). 246–252. 4 indexed citations
4.
Wan, Kelvin H., John S.M. Chang, & Vishal Jhanji. (2022). Toric intraocular lenses for astigmatism correction after keratoplasty in phakic and pseudophakic eyes. Journal of Cataract & Refractive Surgery. 48(9). 1078–1087. 3 indexed citations
5.
Chang, John S.M., et al.. (2021). Effect of time since primary laser-assisted in situ keratomileusis on flap relift success and epithelial ingrowth risk. Journal of Cataract & Refractive Surgery. 48(6). 705–709. 2 indexed citations
6.
Chang, John S.M.. (2018). Bilateral Implantation of a Single-Piece Bifocal Diffractive Intraocular Lens in Presbyopic Patients: A Prospective Case Series. Asia-Pacific Journal of Ophthalmology. 8(1). 12–21. 6 indexed citations
7.
Chang, John S.M.. (2018). Femtosecond laser-assisted astigmatic keratotomy: a review. Eye and Vision. 5(1). 6–6. 32 indexed citations
8.
Chang, John S.M., et al.. (2016). Cataract Surgery with a New Fluidics Control Phacoemulsification System in Nanophthalmic Eyes. Case Reports in Ophthalmology. 7(3). 496–504. 12 indexed citations
9.
Chang, John S.M., et al.. (2012). Correlation Between Axial Length and Anterior Chamber Depth in Normal Eyes, Long Eyes, and Extremely Long Eyes. Asia-Pacific Journal of Ophthalmology. 1(4). 213–215. 9 indexed citations
10.
Chang, John S.M., et al.. (2010). Conductive Keratoplasty to Treat Hyperopic Overcorrection After LASIK for Myopia. Journal of Refractive Surgery. 27(1). 49–55. 11 indexed citations
11.
Chang, John S.M., et al.. (2009). Intraoperative flap re-cut after vertical gas breakthrough during femtosecond laser keratectomy. Journal of Cataract & Refractive Surgery. 36(1). 173–177. 6 indexed citations
12.
Chang, John S.M., et al.. (2009). Toric Implantable Collamer Lens for High Myopic Astigmatic Asian Eyes. Ophthalmology. 116(12). 2340–2347. 30 indexed citations
13.
Chang, John S.M.. (2008). Cyclotorsion during laser in situ keratomileusis. Journal of Cataract & Refractive Surgery. 34(10). 1720–1726. 46 indexed citations
14.
Chang, John S.M., et al.. (2007). Visian Collamer Phakic Intraocular Lens in High Myopic Asian Eyes. Journal of Refractive Surgery. 23(1). 17–25. 45 indexed citations
15.
Grzybowski, Deborah M., Cynthia J. Roberts, Ashraf M. Mahmoud, & John S.M. Chang. (2005). Model for nonectatic increase in posterior corneal elevation after ablative procedures. Journal of Cataract & Refractive Surgery. 31(1). 72–81. 43 indexed citations
16.
Twa, Michael D., Cynthia J. Roberts, Ashraf M. Mahmoud, & John S.M. Chang. (2005). Response of the posterior corneal surface to laser in situ keratomileusis for myopia. Journal of Cataract & Refractive Surgery. 31(1). 61–71. 47 indexed citations
17.
Carter, Susan R., et al.. (2000). Involutional Entropion and Ectropion of the Asian Lower Eyelid. Ophthalmic Plastic and Reconstructive Surgery. 16(1). 45–49. 51 indexed citations
18.
Li, Yong, et al.. (2000). Laser in situ Keratomileusis Enhancement After Radial Keratotomy. Journal of Refractive Surgery. 16(2). 187–190. 15 indexed citations
19.
Chang, John S.M., et al.. (1995). Experimental renal artery stenosis and angioplasty. The mechanism of the angioplasty.. PubMed. 108(2). 113–6.
20.
Chang, John S.M., et al.. (1978). Transcatheter arterial embolization of a traumatic lumbar artery false aneurysm.. PubMed. 84(2). 288–91. 21 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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