Changes in ocular surface blood flow and temperature in contact lens wearers

Altered ocular surface blood flow and temperature in response to contact lens wear

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCTs032200159

Enrollment

Registered

2020-11-01

Start date

2020-11-04

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

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1, Pearson who are 20 years old or older and 39 years old or younger and can obtain informed consent 2, Pearson who wears soft contact lenses for more than 5 days a week. 3, Pearson who has normally used contact lens power (refraction value) of -7.00D or less. 4, Pearson who can visit the hospital on the day of observation according to instructions from researchers.

Exclusion criteria

Exclusion criteria: 1, Pearson who normally use the contact lenses (DAILIES TOTAL 1 or 1 Day Acuvue Tru Eye) used in this research 2, Pearson who normally uses contact lenses (bifocals, astigmatism) other than spherical lenses. 3, Patient with eye lesions including dry eye 4, Pearson who has a clear deterioration of subjective symptoms immediately after wearing contact lenses. 5, Pearson who is judged to be inappropriate by researchers.

Design outcomes

Primary

Measure	Time frame
Eye surface temperature, Eye surface blood flow	—

Secondary

Measure	Time frame
Subjective symptoms, Slit lamp microscopy, Non invasive breakup time (NIBUT)	—

Contacts

Public ContactTakashi Itokawa

Toho University Medical Center

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

Outcome results