Active clinical trials for "Keratoconjunctivitis Sicca"

The purpose of this study is to evaluate the preliminary safety and effectiveness of Pluripotent Stem Cell-derived Mesenchymal Stem Cell Exosome (PSC-MSC-Exo) Eye Drops in the treatment of dry eye diseases post refractive surgery and associated with blepharospasm

Evaluate and study the immunologic changes to the ocular surface in cancer patients.

The goal of this non-randomized, prospective, open, one-arm clinical study is to learn about the clinical efficacy of stem cell eye drops in patients with dry eye disease (DED) who failed to respond to artificial tear sodium hyaluronate eye drops three times a day for two weeks. The main question aims to answer are: How effective are stem cell eye drops in patients with DED? How safe are stem cell eye drops for patients with DED? Participants will be treated with mesenchymal stem cells (MSCs) eye drops, 5×10^5 /50μl in each eye, twice a day for two weeks and they will be followed up for three months after treatment.

This study aims at demonstrating the non-inferiority of Idroflog compared to sodium hyaluronate 0.18% for the disease improvement of people with documented history of dry eyes and use of tear substitutes for at least 3 months.

Orthokeratology(OK) is currently one of the effective methods for treating myopia, reshaping the corneal epithelium to change refractive power. Due to its contact with the ocular surface, long-term wearing could lead to symptoms and signs of dry eye disease(DED) , as well as changes in tear film stability. This prospective study randomly divided 300 children and adolescents with myopia into OK group and spectacles group, with a follow-up of 12 months. At baseline, 1, 3, 6, and 12 months, non-invasive tear breakup time (NIBUT), ocular surface disease index (OSDI) and visual analogue score (VAS) score, tear meniscus height (TMH), conjunctival hyperemia (RS score) and meibomian gland (MG) scores, tear MMP-9 concentration, and point-of-care Lymphotoxin alpha (LTA) test.

The goal of this interventional investigation is to compare BUFY01 with SVS20 in the treatment of patients with dry eye disease. The main questions it aims to answer are: Is BUFY01 non-inferior to SVS20 in terms of signs of DED? Is BUFY01 non-inferior to SVS20 in terms of symptoms of DED? Participants will be asked to: Visit the trial site at 4 different timepoints Use the allocated study treatment everyday until the end of the study (during 3 months) Be examined by the investigator Complete several questionnaires Return unused study treatment. Researchers will compare BUFY01 to SVS20 to see if both study treatments provide similar effects on signs and symptoms of the disease, together with comparable safety.

To investigate the causal relationship of Sicca dry eye patients with presbyopic refractive error and accommodative spasm.

Safety and Efficacy of Medications for Migraine in Patients with Dry Eye Disease or Asthenopia

The goal of this interventional investigation is to compare BUFY02 with TRB02 in the treatment of patients with dry eye disease. The main questions it aims to answer are: Is BUFY02 non-inferior to TRB02 in terms of signs of DED? Is BUFY02 non-inferior to TRB02 in terms of symptoms of DED? Participants will be asked to: Visit the trial site at 4 different timepoints Use the allocated study treatment everyday until the end of the study (during 3 months) Be examined by the investigator Complete several questionnaires Return unused study treatment. Researchers will compare BUFY02 to TRB02 to see if both study treatments provide similar effects on signs and symptoms of the disease, together with comparable safety.

The lipid layer of the tear film is critical to maintaining the integrity of the tear film and deficiency in the tear film lipid layer (TFLL) is the cause of evaporative dry eye (EDE) in approximately 80% of dry eye disease patients, resulting in excessive evaporation (so-called hyperevaporative dry eye). This study protocol was designed to assess and compare the effects of intense pulsed light (IPL), heated eye mask (HEM), vectored thermal pulsation system (VTPS), and eyelid massage device (EMD) for improving signs and symptoms of EDE. EDE patients will be randomly divided into IPL, HEM, VTPS, and EMD groups and will be followed up for four weeks. The primary outcome measure will be non-invasive tear breakup time (NITBUT). The secondary outcome measures will include, tear film lipid layer score (TFLL), meibomian gland function and secretion quality change from baseline conjunctival and cornea staining (CFS) with fluorescein and lissamine, tear meniscus height (TMH), conjunctival hyperemia (RS score) and ocular surface disease index (OSDI) questionnaire. Additionally, adverse events also were monitored and documented.