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Evaluation of stability of lacrimal fluid under environmental stimulation when using of soft contact lenses

Evaluation of stability of lacrimal fluid under environmental stimulation when using of soft contact lenses

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs032230103
Enrollment
40
Registered
2023-05-29
Start date
2023-10-13
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Interventions

Subjects will wear contact lenses(PRECISION 1TM or 1-DAY ACUVUE TruEye) in both eyes and visit to the hospital after at least 7 hours have passed.At each visit,current of air sent by an electric fan a

Sponsors

Hori Yuichi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Subjects who are over the age of 20 and under 40 years old, and capable of giving written informed consent 2.Subjects who are using of the contact lens within suppliable range of power 3.Subjects who wear daily disposable SCL for at least 6hours a day and more than 5days a week 4.Subjects who have not used CL(contact lenses) for 2 days after washout (wearing glasses,etc.)

Exclusion criteria

Exclusion criteria: 1.Regular users of PRECISION 1TM or 1-DAY ACUVUE TruEye 2.Subjects who have obvious worsening of subjective symptoms immediately after wearing the research lens (1)and(2)to be compared, or who have poor fitting of the research lens 3.Subjects with a history of ophthalmic surgery 4.Subjects who have been diagnosed with dry eye by a doctor,who are prescribed dry eye drops,or who are using over-the-counter eye drops. 5.Subjects who are judged inappropriate for participation of the study by the investigator

Design outcomes

Primary

MeasureTime frame
Non-invasive tear film breakup time when wearing study contact lenses

Secondary

MeasureTime frame
Ocular surface blood flow value, ocular surface temperature value, and subjective symptoms after environmental stimulation

Contacts

Public ContactYuichi Hori

Toho University Omori Medical Center

yhori@med.toho-u.ac.jp+81-3-3762-4151

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026