ReviewFrontiers in pharmacology2021
Proton Sensing on the Ocular Surface: Implications in Eye Pain.
Review in Frontiers in pharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
15 citing papers in PubMed, 20 citations in OpenAlex.
- Mechanism of periocular acupuncture in alleviating dry eye neuropathic pain via regulation of the "periocular acupoint-trigeminal ganglion-ventral posteromedial thalamic nucleus" pathway.Frontiers in medicine · 2026Article
- The cornea-trigeminal axis: potassium channels as master regulators of ocular surface homeostasis and sensory transduction.Frontiers in cell and developmental biology · 2026Review
- Review
- Injectable PLGA-based In Situ Forming Subconjunctival Implant for Sustained Ocular Delivery of Ketotifen Fumarate: Formulation, Drug Release, and Biocompatibility Studies.AAPS PharmSciTech · 2025Article
- CORONIS symposium 2023: Scientific and clinical frontiers in ocular surface innervation.Acta ophthalmologica · 2025Article
- Corneal Sensory Receptors and Pharmacological Therapies to Modulate Ocular Pain.International journal of molecular sciences · 2025Review
- MUC1‑ND interacts with TRPV1 to promote corneal epithelial cell proliferation in diabetic dry eye mice by partly activating the AKT signaling pathway.Molecular medicine reports · 2024Article
- TRPV1 corneal neuralgia mutation: Enhanced pH response, bradykinin sensitization, and capsaicin desensitization.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Development of a Probability-Based In Vitro Eye Irritation Screening Platform.Bioengineering (Basel, Switzerland) · 2024Article
- Pain perception enhancement in consecutive second-eye phacoemulsification cataract surgeries under topical anesthesia.International journal of ophthalmology · 2024Review
- The Contribution of TRPA1 to Corneal Thermosensitivity and Blink Regulation in Young and Aged Mice.International journal of molecular sciences · 2023Article
- Review
- Transient Receptor Potential Channels: Important Players in Ocular Pain and Dry Eye Disease.Pharmaceutics · 2022Review
- Neuropathic ocular surface pain: Emerging drug targets and therapeutic implications.Expert opinion on therapeutic targets · 2022Review
- Comparison of the ocular surface microbiota between thyroid-associated ophthalmopathy patients and healthy subjects.Frontiers in cellular and infection microbiology · 2022Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Protons reaching the eyeball from exogenous acidic substances or released from damaged cells during inflammation, immune cells, after tissue injury or during chronic ophthalmic conditions, activate or modulate ion channels present in sensory nerve fibers that innervate the ocular anterior surface. Their identification as well as their role during disease is critical for the understanding of sensory ocular pathophysiology. They are likely to mediate some of the discomfort sensations accompanying several ophthalmic formulations and may represent novel targets for the development of new therapeutics for ocular pathologies. Among the ion channels expressed in trigeminal nociceptors innervating the anterior surface of the eye (cornea and conjunctiva) and annex ocular structures (eyelids), members of the TRP and ASIC families play a critical role in ocular acidic pain. Low pH (pH 6) activates TRPV1, a polymodal ion channel also activated by heat, capsaicin and hyperosmolar conditions. ASIC1, ASIC3 and heteromeric ASIC1/ASIC3 channels present in ocular nerve terminals are activated at pH 7.2-6.5, inducing pain by moderate acidifications of the ocular surface. These channels, together with TRPA1, are involved in acute ocular pain, as well as in painful sensations during allergic keratoconjunctivitis or other ophthalmic conditions, as blocking or reducing channel expression ameliorates ocular pain. TRPV1, TRPA1 and other ion channels are also present in corneal and conjunctival cells, promoting inflammation of the ocular surface after injury. In addition to the above-mentioned ion channels, members of the K
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.