Alfred Sommer

28.8k total citations · 7 hit papers
277 papers, 20.1k citations indexed

About

Alfred Sommer is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Nutrition and Dietetics. According to data from OpenAlex, Alfred Sommer has authored 277 papers receiving a total of 20.1k indexed citations (citations by other indexed papers that have themselves been cited), including 96 papers in Ophthalmology, 54 papers in Radiology, Nuclear Medicine and Imaging and 34 papers in Nutrition and Dietetics. Recurrent topics in Alfred Sommer's work include Glaucoma and retinal disorders (59 papers), Retinal Diseases and Treatments (28 papers) and Corneal surgery and disorders (28 papers). Alfred Sommer is often cited by papers focused on Glaucoma and retinal disorders (59 papers), Retinal Diseases and Treatments (28 papers) and Corneal surgery and disorders (28 papers). Alfred Sommer collaborates with scholars based in United States, Nepal and Germany. Alfred Sommer's co-authors include Joanne Katz, James M. Tielsch, Keith P. West, Jonathan C. Javitt, Harry A. Quigley, Ignatius Tarwotjo, Nicholas S. Kelley, Edward A. Belongia, Michael T. Osterholm and Elizabeth Kimbrough Pradhan and has published in prestigious journals such as New England Journal of Medicine, The Lancet and JAMA.

In The Last Decade

Alfred Sommer

265 papers receiving 18.8k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Efficacy and effectiveness of influenza vaccines: a systematic review and meta-analysis

2011 1.4k citations Alfred Sommer et al. profile →
Clinically Detectable Nerve Fiber Atrophy Precedes the Onset of Glaucomatous Field Loss

1991 896 citations Alfred Sommer Archives of Ophthalmology profile →
Relationship Between Intraocular Pressure and Primary Open Angle Glaucoma Among White and Black Americans

1991 887 citations Alfred Sommer Archives of Ophthalmology profile →
Racial Differences in the Cause-Specific Prevalence of Blindness in East Baltimore

1991 612 citations Alfred Sommer, James M. Tielsch et al. profile →
IMPACT OF VITAMIN A SUPPLEMENTATION ON CHILDHOOD MORTALITY

1986 531 citations Alfred Sommer, Ignatius Tarwotjo et al. The Lancet profile →
An Evaluation of Optic Disc and Nerve Fiber Layer Examinations in Monitoring Progression of Early Glaucoma Damage

1992 475 citations Harry A. Quigley, Joanne Katz et al. Ophthalmology profile →
Racial variations in the prevalence of primary open-angle glaucoma. The Baltimore Eye Survey.

1991 455 citations James M. Tielsch, Alfred Sommer et al. PubMed profile →

Peers

Alfred Sommer

OPHTH

RNMI

EPIDE

Hugh R. Taylor Australia

John Marshall United Kingdom

W. Robert Lee United States

Jeffrey C. Allen United States

Alun D. Hughes United Kingdom

Graeme P. Young Australia

Yehuda Shoenfeld Israel

Bryan Williams United Kingdom

Demetrios�� Spandidos Greece

Donald D. Brown United States

Hugh R. Taylor Australia

Alfred Sommer

16.6k ×1.9

OPHTH

12.0k ×2.0

RNMI

319 ×0.1

8.4k ×2.4

EPIDE

4.5k ×1.5

Citations per year, relative to Alfred Sommer Alfred Sommer (= 1×) peers Hugh R. Taylor

Countries citing papers authored by Alfred Sommer

Since Specialization

Citations

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

Fields of papers citing papers by Alfred Sommer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alfred Sommer

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Levin, Leonard A., Harry A. Quigley, M. Francesca Cordeiro, et al.. (2016). Neuroprotection for glaucoma: Requirements for clinical translation. Experimental Eye Research. 157. 34–37. 47 indexed citations

Labrique, Alain, Amanda Palmer, Sucheta Mehra, et al.. (2015). A novel device for assessing dark adaptation in field settings. BMC Ophthalmology. 15(1). 74–74. 10 indexed citations

Mohammadi, Seyed-Farzad, et al.. (2014). Is Screening for Glaucoma Necessary? A Policy Guide and Analysis. SHILAP Revista de lepidopterología. 6 indexed citations

Tarwotjo, Ignatius, et al.. (2012). THE CHANGE OF PREVALENCE OF XEROPHTHALMIA ON LOMBOK, SEPTEMBER 1977 - SEPTEMBER 1983. SHILAP Revista de lepidopterología.

West, K. P., Lee Wu, S. C. LeClerq, et al.. (2012). Vitamin A supplementation in preschool children and risk of hearing loss as adolescents and young adults in rural Nepal: randomised trial cohort follow-up study. BMJ. 344(jan10 1). d7962–d7962. 32 indexed citations

West, Keith P., Parul Christian, Alain Labrique, et al.. (2011). Effects of Vitamin A or Beta Carotene Supplementation on Pregnancy-Related Mortality and Infant Mortality in Rural Bangladesh. JAMA. 305(19). 1986–95. 113 indexed citations

Chang, Margaret, et al.. (2007). The surgical management of cataract: barriers, best practices and outcomes. International Ophthalmology. 28(4). 247–260. 50 indexed citations

Sommer, Alfred. (2005). Systemic Antibiotics for Communitywide Trachoma Control. Archives of Ophthalmology. 123(5). 687–687. 2 indexed citations

Quigley, Harry A., James M. Tielsch, Joanne Katz, & Alfred Sommer. (1996). The rate of progression in open-angle glaucoma estimated from cross-sectional prevalence of visual field damage in the Baltimore Eye Survey. Investigative Ophthalmology & Visual Science. 37(3). 1 indexed citations

10.

Congdon, Nathan, Alfred Sommer, Matthew L. Severns, et al.. (1995). Pupillary and visual thresholds in young children as an index of population vitamin A status. American Journal of Clinical Nutrition. 61(5). 1076–1082. 29 indexed citations

11.

Javitt, Jonathan C., Debra Street, James M. Tielsch, et al.. (1994). National Outcomes of Cataract Extraction. Ophthalmology. 101(1). 100–106. 308 indexed citations

12.

Semba, Richard D., Keith P. West, Alfred Sommer, et al.. (1993). Abnormal T-cell subset proportions in vitamin-A-deficient children. The Lancet. 341(8836). 5–8. 141 indexed citations

13.

Katz, Joanne, Scott L. Zeger, Keith P. West, James M. Tielsch, & Alfred Sommer. (1993). Clustering of Xerophthalmia within Households and Villages. International Journal of Epidemiology. 22(4). 709–715. 39 indexed citations

14.

Sommer, Alfred. (1993). Vitamin A, Infectious Disease, and Childhood Mortality: A 2 Solution?. The Journal of Infectious Diseases. 167(5). 1003–1007. 56 indexed citations

15.

Sommer, Alfred. (1990). Xerophthalmia, keratomalacia and nutritional blindness. International Ophthalmology. 14(3). 195–199. 44 indexed citations

16.

Javitt, Jonathan C., Joseph K. Canner, & Alfred Sommer. (1989). Cost Effectiveness of Current Approaches to the Control of Retinopathy in Type I Diabetics. Ophthalmology. 96(2). 255–264. 132 indexed citations

17.

Enger, Cheryl & Alfred Sommer. (1987). Recognizing Glaucomatous Field Loss With the Humphrey STATPAC. Archives of Ophthalmology. 105(10). 1355–1357. 24 indexed citations

18.

Sommer, Alfred. (1986). Data on Blindness and Visual Impairment in the U.S. A Resource Manual on Characteristics, Education, Employment and Service Delivery. American Journal of Ophthalmology. 101(4). 505–505. 4 indexed citations

19.

Sommer, Alfred, et al.. (1984). Changing indications for cataract surgery.. PubMed. 82. 166–75. 8 indexed citations

20.

Sommer, Alfred, et al.. (1976). High efficiency thermionic converter studies. CTIT technical reports series. 2 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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