John H.K. Liu

3.1k total citations
60 papers, 2.4k citations indexed

About

John H.K. Liu is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Public Health, Environmental and Occupational Health. According to data from OpenAlex, John H.K. Liu has authored 60 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Ophthalmology, 28 papers in Radiology, Nuclear Medicine and Imaging and 20 papers in Public Health, Environmental and Occupational Health. Recurrent topics in John H.K. Liu's work include Glaucoma and retinal disorders (44 papers), Corneal surgery and disorders (22 papers) and Ocular Surface and Contact Lens (20 papers). John H.K. Liu is often cited by papers focused on Glaucoma and retinal disorders (44 papers), Corneal surgery and disorders (22 papers) and Ocular Surface and Contact Lens (20 papers). John H.K. Liu collaborates with scholars based in United States, Switzerland and China. John H.K. Liu's co-authors include Robert N. Weinreb, Daniel F. Kripke, Xiaoyan Zhang, Arthur J. Sit, Teruyo Kida, Sameh Mosaed, Felipe A. Medeiros, Kaweh Mansouri, Arthur H. Neufeld and Kaweh Mansouri and has published in prestigious journals such as PLoS ONE, Journal of Applied Physiology and Ophthalmology.

In The Last Decade

John H.K. Liu

60 papers receiving 2.3k citations

Peers

John H.K. Liu

OPHTH

RNMI

PHEOH

PFM

Augusto Paranhos Brazil

P. Juhani Airaksinen Finland

José M. Larrosa Spain

Gordon R. Douglas Canada

Maurice E. Langham United States

Michele Carbonelli Italy

Masato Wakakura Japan

Carolina P. B. Gracitelli Brazil

Christopher A. Girkin United States

Ali S. Raza United States

Augusto Paranhos Brazil

John H.K. Liu

1.2k ×0.6

OPHTH

772 ×0.5

RNMI

264 ×0.4

PHEOH

106 ×0.3

PFM

142 ×0.7

Citations per year, relative to John H.K. Liu John H.K. Liu (= 1×) peers Augusto Paranhos

Countries citing papers authored by John H.K. Liu

Since Specialization

Citations

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

Fields of papers citing papers by John H.K. Liu

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John H.K. Liu. 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 H.K. Liu. The network helps show where John H.K. Liu may publish in the future.

Co-authorship network of co-authors of John H.K. Liu

This figure shows the co-authorship network connecting the top 25 collaborators of John H.K. Liu. A scholar is included among the top collaborators of John H.K. Liu 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 H.K. Liu. John H.K. Liu 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

Liu, John H.K., Kaweh Mansouri, & Robert N. Weinreb. (2015). Estimation of 24-Hour Intraocular Pressure Peak Timing and Variation Using a Contact Lens Sensor. PLoS ONE. 10(6). e0129529–e0129529. 31 indexed citations

Liu, John H.K. & Robert N. Weinreb. (2014). Asymmetry of Habitual 24-Hour Intraocular Pressure Rhythm in Glaucoma Patients. Investigative Ophthalmology & Visual Science. 55(11). 7398–7398. 18 indexed citations

Liu, John H.K., et al.. (2014). Efficacy of Latanoprostene Bunod Ophthalmic Solution 0.024% Compared With Timolol Maleate Ophthalmic Solution 0.5% in Lowering IOP over 24 hours in Subjects With Open Angle Glaucoma or Ocular Hypertension (CONSTELLATION). Investigative Ophthalmology & Visual Science. 55(13). 3549–3549. 2 indexed citations

Macias, Brandon R., et al.. (2014). Intraocular and Intracranial Pressures During Head-Down Tilt with Lower Body Negative Pressure. Aerospace Medicine and Human Performance. 86(1). 3–7. 54 indexed citations

Lin, Jessica & John H.K. Liu. (2010). Circadian Variations in Intracranial Pressure and Translaminar Pressure Difference in Sprague-Dawley Rats. Investigative Ophthalmology & Visual Science. 51(11). 5739–5739. 22 indexed citations

Deokule, Sunil, Gianmarco Vizzeri, Felipe A. Medeiros, et al.. (2009). Relationship of the 24-Hour Pattern of Intraocular Pressure with Optic Disc Appearance in Primary Open-Angle Glaucoma. Ophthalmology. 116(5). 833–839. 16 indexed citations

Bagga, Harmohina, John H.K. Liu, & Robert N. Weinreb. (2009). Intraocular pressure measurements throughout the 24 h. Current Opinion in Ophthalmology. 20(2). 79–83. 68 indexed citations

Kida, Teruyo, John H.K. Liu, & Robert N. Weinreb. (2008). Effect of Aging on Nocturnal Blood Flow in the Optic Nerve Head and Macula in Healthy Human Eyes. Journal of Glaucoma. 17(5). 366–371. 13 indexed citations

Li, Ruixia, et al.. (2008). Direct effect of light on 24-h variation of aqueous humor protein concentration in Sprague–Dawley rats. Experimental Eye Research. 87(5). 487–491. 9 indexed citations

10.

Liu, John H.K., Ruixia Li, Thomas R. Nelson, & Robert N. Weinreb. (2007). Sympathetic Activities Influence Blood-Flow Velocity and Resistance in the Rabbit Ophthalmic Artery. Journal of Ocular Pharmacology and Therapeutics. 23(2). 110–115. 4 indexed citations

11.

Liu, John H.K., Ruixia Li, Thomas R. Nelson, & Robert N. Weinreb. (2007). Resistance to Blood Flow in the Rabbit Ophthalmic Artery After Topical Treatment with Timolol. Journal of Ocular Pharmacology and Therapeutics. 23(2). 103–109. 7 indexed citations

12.

Liu, John H.K., et al.. (2007). Rat Jugular Vein and Carotid Artery Catheterization for Acute Survival Studies. Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)). 4 indexed citations

13.

Lee, Alexander, Sameh Mosaed, Robert N. Weinreb, Daniel F. Kripke, & John H.K. Liu. (2006). Effect of Laser Trabeculoplasty on Nocturnal Intraocular Pressure in Medically Treated Glaucoma Patients. Ophthalmology. 114(4). 666–670. 41 indexed citations

14.

Sit, Arthur J., John H.K. Liu, & Robert N. Weinreb. (2006). Asymmetry of Right versus Left Intraocular Pressures over 24 Hours in Glaucoma Patients. Ophthalmology. 113(3). 425–430. 44 indexed citations

15.

Liu, John H.K., Parag A. Gokhale, Richard T. Loving, Daniel F. Kripke, & Robert N. Weinreb. (2003). Laboratory Assessment of Diurnal and Nocturnal Ocular Perfusion Pressures in Humans. Journal of Ocular Pharmacology and Therapeutics. 19(4). 291–297. 54 indexed citations

16.

Liu, John H.K.. (2000). Circadian Variations of Prostaglandins in the Rabbit Aqueous Humor. Journal of Ocular Pharmacology and Therapeutics. 16(1). 49–54. 11 indexed citations

17.

Liu, John H.K., et al.. (1995). Suprachiasmatic Nucleus in the Neural Circuitry for the Circadian Elevation of Intraocular Pressure in Rabbits. Journal of Ocular Pharmacology and Therapeutics. 11(3). 379–388. 24 indexed citations

18.

Liu, John H.K., et al.. (1989). Intramuscular injection of chlorpromazine decreases intraocular pressure by lowering systemic blood pressure. Current Eye Research. 8(12). 1315–1321. 2 indexed citations

19.

Liu, John H.K., et al.. (1988). Extra-pituitary action of luteinizing hormone releasing hormone on intraocular pressure. Current Eye Research. 7(7). 737–741. 2 indexed citations

20.

Liu, John H.K., et al.. (1988). Intravitreal human chorionic gonadotropin decreases intraocular pressure in rabbits: Mechanism of action. Current Eye Research. 7(10). 1035–1040. 4 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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