Countries citing papers authored by Trefford Simpson
Since
Specialization
Citations
This map shows the geographic impact of Trefford Simpson'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 Trefford Simpson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Trefford Simpson more than expected).
Fields of papers citing papers by Trefford Simpson
This network shows the impact of papers produced by Trefford Simpson. 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 Trefford Simpson. The network helps show where Trefford Simpson may publish in the future.
Co-authorship network of co-authors of Trefford Simpson
This figure shows the co-authorship network connecting the top 25 collaborators of Trefford Simpson.
A scholar is included among the top collaborators of Trefford Simpson 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 Trefford Simpson. Trefford Simpson 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.
Feng, Yunwei, et al.. (2015). Calibration of Chemical Pneumatic Belmonte Esthesiometer Stimuli using a Portable Carbon Dioxide Sensor.. Investigative Ophthalmology & Visual Science. 56(7). 295–295.1 indexed citations
2.
Situ, Ping, Trefford Simpson, & Carolyn G. Begley. (2015). Test-retest repeatability and calibration of a new automated Belmonte esthesiometer. Investigative Ophthalmology & Visual Science. 56(7). 6080–6080.2 indexed citations
3.
Zhang, Jun, et al.. (2014). Visual Disturbance and Ocular Irritation in an Experimentally Induced Tear Film Instability Model. Investigative Ophthalmology & Visual Science. 55(13). 1989–1989.1 indexed citations
4.
Situ, Ping, et al.. (2013). Validation of the Current Symptoms Questionnaire (CSQ): a meta-analytical approach. Investigative Ophthalmology & Visual Science. 54(15). 6023–6023.5 indexed citations
5.
Varikooty, Jalaiah, et al.. (2013). The relationship between clinical grading and objective image analysis of Lid Wiper Epitheliopathy. Investigative Ophthalmology & Visual Science. 54(15). 5460–5460.3 indexed citations
6.
Simpson, Trefford, Marc Schulze, & Paul Stolee. (2011). Rasch Analysis of Clinical Grading of Corneal Staining. Investigative Ophthalmology & Visual Science. 52(14). 1967–1967.1 indexed citations
7.
Irving, Elizabeth L., et al.. (2011). Longitudinal Changes In Human Refractive Error. Investigative Ophthalmology & Visual Science. 52(14). 2823–2823.
8.
Keir, Nancy, Trefford Simpson, Lyndon Jones, & Desmond Fonn. (2006). Higher Order Aberration Profiles Differ for Myopes and Hyperopes Before and 6 Months After a CustomCornea® LASIK Procedure. Investigative Ophthalmology & Visual Science. 47(13). 60–60.2 indexed citations
9.
Srinivasan, Sruthi, Lyndon Jones, E.M. Joyce, Trefford Simpson, & Michelle Senchyna. (2006). Clinical Signs and Symptoms in Postmenopausal Females With and Without Symptoms of Dry Eye. Investigative Ophthalmology & Visual Science. 47(13). 249–249.2 indexed citations
10.
Simpson, Trefford, et al.. (2006). Corneal Staining Is Not Correlated With Limbal or Bulbar Redness in Subjects Using Daily Wear Silicone Hydrogel Contact Lenses. Investigative Ophthalmology & Visual Science. 47(13). 87–87.2 indexed citations
11.
Schneider, S., Trefford Simpson, & Desmond Fonn. (2005). Repeatability of Normalized Light Scatter of the Cornea Determined Using Optical Coherence Tomography (OCT). Investigative Ophthalmology & Visual Science. 46(13). 2751–2751.1 indexed citations
12.
Sorbara, Luigina, Fenghe Lu, Desmond Fonn, & Trefford Simpson. (2005). Topographic Keratometric Effects of Corneal Refractive Therapy for Hyperopia After One Night of Lens Wear. Investigative Ophthalmology & Visual Science. 46(13). 2061–2061.2 indexed citations
Vasudevan, Balamurali, J. G. Sivak, & Trefford Simpson. (2004). Refractive index of the human corneal epithelium. Investigative Ophthalmology & Visual Science. 45(13). 2882–2882.1 indexed citations
15.
Haque, Sameena, Lyndon Jones, & Trefford Simpson. (2004). CORNEAL AND EPITHELIAL THICKNESS IN KERATOCONUS: A COMPARISON OF ULTRASONIC PACHYMETRY, ORBSCAN AND OPTICAL COHERENCE TOMOGRAPHY MEASUREMENTS.. Investigative Ophthalmology & Visual Science. 45(13). 2891–2891.1 indexed citations
16.
Lu, Fenghe, et al.. (2003). Topographic Keratometric Effects of Corneal Refractive Therapy After One Night of Lens Wear. Investigative Ophthalmology & Visual Science. 44(13). 3699–3699.3 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
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research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
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Rankless may not fully capture the entirety of a scholar's output or impact.