Hans Vellara

622 total citations
21 papers, 439 citations indexed

About

Hans Vellara is a scholar working on Radiology, Nuclear Medicine and Imaging, Ophthalmology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Hans Vellara has authored 21 papers receiving a total of 439 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Radiology, Nuclear Medicine and Imaging, 14 papers in Ophthalmology and 12 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Hans Vellara's work include Corneal surgery and disorders (19 papers), Corneal Surgery and Treatments (12 papers) and Ocular Surface and Contact Lens (12 papers). Hans Vellara is often cited by papers focused on Corneal surgery and disorders (19 papers), Corneal Surgery and Treatments (12 papers) and Ocular Surface and Contact Lens (12 papers). Hans Vellara collaborates with scholars based in New Zealand and Fiji. Hans Vellara's co-authors include Dipika V. Patel, Akilesh Gokul, Charles N. J. McGhee, Jay J. Meyer, Mohammed Ziaei, Jason Turuwhenua, Mohammad E Yadegarfar, Richard T. Hart, Sachin Thakur and Neil Murray and has published in prestigious journals such as American Journal of Ophthalmology, Investigative Ophthalmology & Visual Science and British Journal of Ophthalmology.

In The Last Decade

Hans Vellara

20 papers receiving 427 citations

Peers

Hans Vellara

RNMI

OPHTH

PHEOH

EPIDE

PFM

Rajan Bhojwani United Kingdom

Mohamed Shafik Shaheen Egypt

Pinakin Gunvant United States

Kishore Raj Pradhan Nepal

David Tabibian Switzerland

Anubha Rathi India

Damian Lake United Kingdom

Bence Lajos Kolozsvári Hungary

Mohammad Laiquzzaman United Kingdom

Julio Ortega‐Usobiaga Spain

Rajan Bhojwani United Kingdom

Hans Vellara

500 ×1.2

RNMI

366 ×1.4

OPHTH

186 ×1.0

PHEOH

136 ×1.5

EPIDE

8 ×0.5

PFM

Citations per year, relative to Hans Vellara Hans Vellara (= 1×) peers Rajan Bhojwani

Countries citing papers authored by Hans Vellara

Since Specialization

Citations

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

Fields of papers citing papers by Hans Vellara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hans Vellara

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

All Works

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20 of 20 papers shown

Vellara, Hans, et al.. (2023). Comparison of Ectasia Detection in Early Keratoconus Using Scheimpflug-Based Corneal Tomography and Biomechanical Assessments. Cornea. 42(12). 1528–1535. 8 indexed citations

Meyer, Jay J., Akilesh Gokul, Hans Vellara, & Charles N. J. McGhee. (2021). Progression of keratoconus in children and adolescents. British Journal of Ophthalmology. 107(2). 176–180. 29 indexed citations

Ziaei, Mohammed, Hans Vellara, Akilesh Gokul, et al.. (2021). Prospective one year study of corneal biomechanical changes following high intensity, accelerated cornea cross-linking in patients with keratoconus using a non-contact tonometer. European Journal of Ophthalmology. 32(2). 806–814. 2 indexed citations

Ziaei, Mohammed, Akilesh Gokul, Hans Vellara, Dipika V. Patel, & Charles N. J. McGhee. (2020). Prospective two year study of changes in corneal density following transepithelial pulsed, epithelium-off continuous and epithelium-off pulsed, corneal crosslinking for keratoconus. Contact Lens and Anterior Eye. 43(5). 458–464. 13 indexed citations

Ziaei, Mohammed, et al.. (2020). Measurement of In Vivo Biomechanical Changes Attributable to Epithelial Removal in Keratoconus Using a Noncontact Tonometer. Cornea. 39(8). 946–951. 15 indexed citations

Ziaei, Mohammed, Akilesh Gokul, Hans Vellara, Dipika V. Patel, & Charles N. J. McGhee. (2020). Measurement of refractive, wavefront, topographic, and keratometric changes attributable to epithelial removal in keratoconus. Canadian Journal of Ophthalmology. 56(1). 6–11. 1 indexed citations

Gokul, Akilesh, Mohammad E Yadegarfar, Hans Vellara, et al.. (2020). Prospective Clinical Study of Keratoconus Progression in Patients Awaiting Corneal Cross-linking. Cornea. 39(10). 1256–1260. 21 indexed citations

Ziaei, Mohammed, Akilesh Gokul, Hans Vellara, Dipika V. Patel, & Charles N. J. McGhee. (2020). Peripheral Cornea Crosslinking Before Deep Anterior Lamellar Keratoplasty.. PubMed. 9(2). 127–134. 6 indexed citations

Meyer, Jay J., et al.. (2019). Improved refractive outcomes of small-incision extracapsular cataract surgery after implementation of a biometry training course. Middle East African Journal of Ophthalmology. 26(1). 17–17.

10.

Ziaei, Mohammed, Hans Vellara, Akilesh Gokul, Dipika V. Patel, & Charles N. J. McGhee. (2019). Prospective 2-year study of accelerated pulsed transepithelial corneal crosslinking outcomes for Keratoconus. Eye. 33(12). 1897–1903. 23 indexed citations

11.

Lee, Stephen, Gayan Heruka De Zoysa, Vijayalekshmi Sarojini, et al.. (2019). Ex vivo evaluation of the stability, safety and antibacterial efficacy of an extemporaneous povidone‐iodine preparation for ophthalmic applications. Clinical and Experimental Optometry. 102(6). 583–589. 3 indexed citations

12.

Ziaei, Mohammed, Akilesh Gokul, Hans Vellara, et al.. (2019). Prospective two‐year study of clinical outcomes following epithelium‐off pulsed versus continuous accelerated corneal crosslinking for keratoconus. Clinical and Experimental Ophthalmology. 47(8). 980–986. 19 indexed citations

13.

Ziaei, Mohammed, Jay J. Meyer, Akilesh Gokul, Hans Vellara, & Charles N. J. McGhee. (2018). Direct measurement of anterior corneal curvature changes attributable to epithelial removal in keratoconus. Journal of Cataract & Refractive Surgery. 44(1). 71–77. 20 indexed citations

14.

Vellara, Hans, et al.. (2017). The effect of abnormal stromal protein on the biomechanical properties of the cornea. Clinical and Experimental Optometry. 100(6). 729–731. 1 indexed citations

15.

Gokul, Akilesh, Hans Vellara, & Dipika V. Patel. (2017). Advanced anterior segment imaging in keratoconus: a review. Clinical and Experimental Ophthalmology. 46(2). 122–132. 36 indexed citations

16.

Vellara, Hans, et al.. (2017). Short‐term outcomes of small incision cataract surgery provided by a regional population in the Pacific. Clinical and Experimental Ophthalmology. 45(8). 812–819. 3 indexed citations

17.

Vellara, Hans, Richard T. Hart, Akilesh Gokul, Charles N. J. McGhee, & Dipika V. Patel. (2016). In vivo ocular biomechanical compliance in thyroid eye disease. British Journal of Ophthalmology. 101(8). 1076–1079. 16 indexed citations

18.

Meyer, Jay J., et al.. (2016). Repeatability and Agreement of Orbscan II, Pentacam HR, and Galilei Tomography Systems in Corneas With Keratoconus. American Journal of Ophthalmology. 175. 122–128. 72 indexed citations

19.

Vellara, Hans, et al.. (2015). Quantitative Analysis of Corneal Energy Dissipation and Corneal and Orbital Deformation in Response to an Air-Pulse in Healthy Eyes. Investigative Ophthalmology & Visual Science. 56(11). 6941–6941. 21 indexed citations

20.

Vellara, Hans & Dipika V. Patel. (2015). Biomechanical properties of the keratoconic cornea: a review. Clinical and Experimental Optometry. 98(1). 31–38. 111 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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