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NCT07059754
The goal of this clinical trial is to understand what effect a cold treatment with an investigational device, ETX-4143, has on the anatomical structures and the inflammatory response of the surface of the eye in those people who suffer from chronic ocular surface pain (COSP). The trial will also tell us more about the safety of this investigational device. The main questions this study aims to answer are: * What anatomical changes happen to corneal surface nerves after treatment with ETX-4143 * What changes in inflammatory mediators and cell response take place after treatment with ETX-4143 Researchers will obtain images of the corneal surface nerves for analysis using a confocal microscope and collect tear bio samples for analysis. Participants will: * Be screened for having chronic ocular surface pain * Will be treated with ETX-4143 cold treatment for 4 minutes * Fill out a weekly questionnaire on eye pain for 12 weeks * Be seen in the clinic 2 weeks, 6 weeks, and 12 weeks after treatment to have images of the corneal surface taken, and to collect a tear bio sample
NCT06479382
A prospective early-feasibility study to evaluate the safety and effectiveness of the ETX-4143 2.0 device. The device is intended to treat subjects with eye pain
NCT05147233
This was a randomized, double-masked, vehicle-controlled, Phase 3 study evaluating the efficacy and safety of OCS-01 QD compared to vehicle in the treatment of inflammation and pain following cataract surgery.
NCT04648085
Individuals with dry eye tend to present with ocular pain which persists despite the use of topical treatment. This could be secondary to somatosensory impairment attributable to neuropathic pain. The purpose of this study is to evaluate the effect of trigeminal nerve stimulation (TNS) on corneal nerves and chronic ocular pain in patients with dry eye.
NCT03652415
The DRy eye Outcome and Prescription Study (DROPS) is a large observational multicentre study exploring the 'real world' effectiveness of artificial tears in dry eye disease and determinants of efficacy. The aim is to include at least 635 symptomatic dry eye patients who are prescribed artificial tears. All trainees and fellows in London are invited to become collaborators: collaborators are asked to consent patients, assess signs at baseline, and give patients questionnaires at baseline and 4 weeks (for home completion). In tandem, we are conducting a qualitative review of ophthalmologists' prescribing behaviours for dry eye disease.
NCT03063489
Evaluation of the Safety, Systemic Pharmacokinetics, and Tolerability of Single and Repeat Ocular Instillations of Loteprednol Etabonate Ophthalmic Gel, in Normal Healthy Volunteers
NCT01824927
Patients having cataract extraction in the second eye under topical anesthesia with monitored anesthesia care often report increased pain and awareness relative to the first surgery in the fellow eye, despite similar operative and anesthetic conditions. The purpose of this study is to investigate the pathogenesis of this phenomenon.